DOCSLIB.ORG

Male Reproductive System 1

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Male Reproductive System 1 Male Reproductive System 1 1. Male reproductive organs 2. Embryonic development 3. The testes and spermatogenesis 4. Intratesticular genital ducts 5. The epididymis SPLANCHNOLOGY Male reproductive system ° Male reproductive system, systema genitalia masculina: V a part of the human reproductive process ° Male reproductive organs, organa genitalia masculina: V internal genital organs: testicle, testis epididymis, epididymis ductus deferens, ductus (vas) deferens seminal vesicle, vesicula seminalis ejaculatory duct, ductus ejaculatorius prostate gland, prostata V external genital organs: penis, penis scrotum, scrotum bulbourethral glands, glandulae bulbourethrales Prof. Dr. Nikolai Lazarov 2 SPLANCHNOLOGY Embryonic development ° Embryonic origin – intermediate mesoderm: V genital (gonadal) ridge – 5th we. ° Embryogenesis of genital organs: V testicle, testis – induced by the SRY gene: the primitive sex cords – Sox-9 transcription factor testis (medullary) cords: o rete testis, tunica albuginea – mesenchyme o Sertoli cells Leydig cells (2 nd mo .) V other genital organs – induction of Hox genes: ductus mesonephricus (Wolffian duct) o ductuli efferentes testis – Wolffian body o ductus epididymidis o dictus deferens o vesicula seminalis ductus paramesonephricus (Mülleri) – 6th we. o regression – antimüllerian hormone o appendix testis, utriculus prostaticus Prof. Dr. Nikolai Lazarov 3 SPLANCHNOLOGY Descensus testis Prof. Dr. Nikolai Lazarov 4 SPLANCHNOLOGY Testicle, testis ° Testicle, testis (Gr. orchis, didymis): V a pair of oval-shaped organs V two basic functions: production of sperm (spermatogenesis) secretion of androgens (male sex hormones) ° Testis in situ: V within an extension of the abdomen, scrotum V size: 40-45 mm in length 25-35 mm in height 20-30 mm in breadth V weigth – 10-14 g V external appearance: extremitas superior et extremitas inferior facies lateralis et facies medialis margo anterior et margo posterior epididymis Prof. Dr. Nikolai Lazarov 5 SPLANCHNOLOGY Macroscopic anatomy ° tunica vaginalis testis: V lamina parietalis V lamina visceralis ° tunica albuginea: V mediastinum testis V septula testis V lobuli testis – 200-300 ° tunica vasculosa Prof. Dr. Nikolai Lazarov 6 SPLANCHNOLOGY Microscopic anatomy ° Testicular lobules, lobuli testis: V tubuli seminiferi contorti – 400-600 V tubuli seminiferi recti rete testis V ductuli efferentes testis – 12-20 V lobuli epididymis (coni vasculosi) V ductus epididymidis head, body and tail of epididymis Prof. Dr. Nikolai Lazarov 7 SPLANCHNOLOGY Microscopic anatomy ° Convoluted seminiferous tubules, tubuli seminiferi contorti: V seminiferous epithelium: cells of spermatogenic lineage supporting (Sertoli) cells – epitheliocyti sustentantes (Sertoli) V stratum myoideum – myoid cells V stratum fibrosum Enrico Sertoli (1842-1910) Prof. Dr. Nikolai Lazarov 8 SPLANCHNOLOGY Microscopic anatomy ° Spermatogenic lineage cells, cellulae spermatogenicae: V spermatogonia V primary spermatocytes V secondary spermatocytes (prespermatids) V spermatids – early and late V spermatozoa Prof. Dr. Nikolai Lazarov 9 SPLANCHNOLOGY Regulation of spermatogenesis ° Central regulation stimulatory influence: V hypothalamus – GRH (hypophysis) V adenohypophysis – FSH (seminiferous tubules ) LH ( Leydig cells) ° Local regulation – stimulatory and inhibitory: V Sertoli cells – ABP and inhibin V Leydig cells – testosterone ° Spermatogenesis regulating factors: V temperature ~35°C (cryptorchidism ) rich venous plexus, pampiniform plexus evaporation of sweat from scrotum contraction of cremaster muscles V malnutrition V alcoholism V action of certain toxic drugs V X-ray irradiation V disturbance in blood supply Prof. Dr. Nikolai Lazarov 10 SPLANCHNOLOGY Interstitial tissue of the testis ° Interstitial (Leydig) cells, endocrinocyti interstitiales (Leydig): V 12 % of the testicular volume V located in the interstitium testis: isolated or in small clusters fenestrated capillaries V crystals of Reinke V steroid-secreting cells – production of androgens (testosterone) V stimulation by the LH (ICSH) from adenohypophysis Franz von Leydig (1821-1908) Prof. Dr. Nikolai Lazarov 11 SPLANCHNOLOGY Intratesticular ducts ° Rete testis: V straight seminiferous tubules, tubuli seminiferi recti: simple cuboidal epithelium transport of sperm V ductuli efferentes testis: pseudostratified columnar epithelium – cell types: o ciliated columnar cells o cuboidal secretory cells stratum fibromusculare Prof. Dr. Nikolai Lazarov 12 SPLANCHNOLOGY Excurrent duct system ° Duct of the epididymis, ductus epididymidis: V ~6 m in length V forms the body and tail of the epididymis V structure of the wall: pseudostratified columnar epithelium: o epitheliocyti microvilosi – stereocilia o epitheliocyti basales o lymphocytes , halo cells tunica fibromuscularia o smooth muscle and elastic fibers tunica adventitia Prof. Dr. Nikolai Lazarov 13 SPLANCHNOLOGY Testicular vessels ° Blood supply : V a. testicularis tunica vascularis V a. ductus deferentis ° Venous drainage: V plexus pampiniformis v. testicularis Prof. Dr. Nikolai Lazarov 14 SPLANCHNOLOGY Lymphatic drainage ° lymph vessels in funiculus spermaticus ° along the testicular vessels ° lumbar lymph nodes, nodi lumbales Prof. Dr. Nikolai Lazarov 15 SPLANCHNOLOGY Innervation of the testis ° Plexus testicularis et plexus deferentialis: V sympathetic nerves V sensory nerves ІХ th -Хth thoracic spinal nerves Prof. Dr. Nikolai Lazarov 16 SPLANCHNOLOGY Thank you .... to be continued ... Prof. Dr. Nikolai Lazarov 17.
Load more

Recommended publications
  • Spermatogonia, Primary and Secondary Spermatocytes, and Early and Late Spermatids
    David (Michelangelo) MED316 REPRODUCTIVE SYSTEM AND DISORDERS HISTOLOGY OF THE MALE REPRODUCTIVE SYSTEM Histology of Testes and Spermatogenesis Dr. Sinan Özkavukcu Ankara University Faculty of Medicine Dept. of Histology – Embryology Lab Director - Center for Assisted Reproduction Male Reproductive System • Testes • Genital excurrent ducts • Ductuli efferentes • Ductus epididymis • Ductus deferens • Accessory sex glands • Seminal vesicles • Prostate • Bulbourethral glands • External genitalia • Penis • Scrotum Endocrine control of male reproduction • Onset of puberty • brain determines the timing of onset of puberty • crucial role in controlling sexual behavior and reproduction is played by the hypothalamus • Terminals of gonadotropin-releasing hormone (GnRH)-secreting neurons release their secretions in the median eminence and infundibulum, where they enter the hypophyseal portal system • GnRH is then driven to the anterior pituitary, precisely to the gonadotrophs, basophil-staining cells, which constitute 10%– 15% of anterior pituitary cells and are located throughout the entire anterior lobe • The gonadotrophs synthesize follicle-stimulating hormone (FSH) and luteinizing hormone (LH) and release them into the systemic circulation; both hormones reach the testis by testicular arteries. An Introduction to Male Reproductive Medicine, Niederberger Anti-Müllerian Hormone in Disorders of Sex Determination and Differentiation Arq Bras Endocrinol Metab vol 49 nº 1 Fevereiro 2005 Circulation of testes • The arterial supply to the testes follows the lobular division of seminiferous tubules, • Each lobulus is supplied by one recurrent artery; segmental arteries and capillaries become branched between the Leydig cells and then give rise to the venous system. • The pattern of blood supply to the testis is also essential for maintaining a lower testicular temperature compared with body temperature.
    [Show full text]
  • Methodical Complex on Gross Anatomy for Ii Course
    MINISTRY OF HIGHER AND SECONDARY SPECIAL EDUCATION OF UZBEKISTAN BUKHARA STATE MEDICAL INSTITUTE NAMED AFTER ABU ALI IBN SINO DEPARTMENT OF ANATOMY "APPROVED" by Vice-Rector for Academic and educational work, Associate prof. G.J.Jarilkasinova ________________________________ "_____" ________________ 2020 Area of knowledge: 500000 - Health and social care Education field: 510000 - Healthcare Educational direction: 5510100 - Medical business 5111000 - Professional education (5510100 - Medicine business) 5510200 - Pediatric Medicine 5510300 - Medico-prophylactic business 5510400 – Dentistry (by directions) 5510900 – Medico-biological business EDUCATIONAL - METHODICAL COMPLEX ON GROSS ANATOMY FOR II COURSE Bukhara 2020 The scientific program was approved by the Resolution of the Coordination Council No. ___ of August ___, 2020 on the activities of educational and methodological associations in the areas of higher and secondary special and vocational education. The teaching and methodical complex was developed by order of the Ministry of Higher and Secondary Special Education of the Republic of Uzbekistan dated March 1, 2017 No. 107. Compilers: Radjabov A.B. - Head of the Department of Anatomy, Associate Professor Khasanova D.A. - Assistant of the Department of Anatomy, PhD Bobomurodov N.L. - Associate Professor of the Department of Anatomy Reviewers: Davronov R.D. - Head of the Department Histology and Medical biology, Associate Professor Djuraeva G.B. - Head of the Department of the Department of Pathological Anatomy and Judicial Medicine, Associate Professor The working educational program for anatomy is compiled on the basis of working educational curriculum and educational program for the areas of 5510100 - Medical business. This is discussed and approved at the department Protocol № ______ of "____" _______________2020 Head of the chair, associate professor: Radjabov A.B.
    [Show full text]
  • Anti-Spermatogenic Effects of Methanolic Extract of Citrullus Colocynthis and Delonix Regia on Male Reproductive Organs of Wistar Rats
    ASJ: International Journal of Health, Safety and Environment (IJHSE) Vol. 6 (09) 30 December, 2020, Pp. 711 – 720 www.academiascholarlyjournal.org/ijhse/index_ijhse.htm ISSN: 2360-9311©Academia Scholarly Journals Also Available@: Archive.org/Payal_et_al. Open access Anti-spermatogenic Effects of Methanolic Extract of Citrullus colocynthis and Delonix regia on Male Reproductive Organs of Wistar Rats Payal Soan1, Ajit Kumar Sharma1 and Ravi Sharma2* 1Department of Botany, St. Wilfred College for Girls, Mansarovar, Jaipur (Rajasthan), India. 2Department of Botany, K.R. College, Mathura; Ex-Founder Principal ESS ESS College of Education Dayalbagh, Agra and Retd. Prof. Botany Agra College, Agra (Dr. B. R. Ambedkar University Agra, Formerly Agra University, Agra) UP India. *Corresponding Authors’ Contact Details: E-mail Address ✉: [email protected]; Phone no ☎: + 91 9897258005 Accepted December 18, 2020 The present investigation was carried out in the laboratory Departments of Botany and Zoology, St. Wilfred College for Girls, Mansarovar and Reproductive Physiology and Endocrinology Section, Centre of Advanced Studies, Department of Zoology, University of Rajasthan, Jaipur, Rajasthan, India with fruit extracts of Citrullus colocynthis and Delonix regia on Male Reproductive Organs of Wistar Rats during (2018-2020) at Jaipur, India for evaluation of some andrological parameters such as morphology of spermatozoa, sperm count, motility, fertility index. The experiments were performed with fruit extracts (of C. colocynthis and D. regia) in double distilled water (100 mg/ml) administered orally to Wistar Rats randomly (RBD) divided into three groups with three replicates each: Group_1: Control Distilled water treated Rats; Group_2: Rats treated at 100 mg/kg of C. colocynthis extract 60 days and Group_3: Rats treated at 100 mg/kg of D.
    [Show full text]
  • Functions of the Male Reproductive System
    By Dr. Mahmoud Awad INTRODUCION Functions of the male reproductive system • Production of sperms. • Storage and maturation of sperms. • Secrets a suitable media for nourishment of sperms. • Production of male sex hormones. • Transfer of sperms to the female via the copulatory organ. Male Reproductive System Primary sex Secondary sex organs organs Testis Vas Accessory Epididymis Penis Urethra deferens genital glands Ampulla of Vesicular Prostate Bulbo-urethral ductus gland gland glands deferens A. Stroma 1 – Tunica albuginea 2- Tunica vaculosa 3- Septae 4-Mediastinum testis parietal tunica vaginalis A. Stroma 1 – Tunica albuginea • Dense irregular white fibrous collagenous connective tissue. • Covered by mesothelium (visceral layer of visceral tunica vaginalis tunica vaginalis). A. Stroma 1 – Tunica albuginea 2- Tunica vaculosa • Highly vascular loose CT underneath tunica albuginea. • Located deeper; boar and stallion, and superficially; dog and ram. A. Stroma 1 – Tunica albuginea 2- Tunica vaculosa 3- Septae (septula testis) •Fibrous c.t. partitions project from the capsule toward the mediastinum testis . •Septae divide the testis into numerous incomplete compartments; testicular lobules (lobuli teatis). A. Stroma 1 – Tunica albuginea 2- Tunica vaculosa 3- Septae (septula testis) 4- Mediastinum testis • Thickening of the tunica albuginea in the posterior region of the testis. • It is composed of loose c.t. that houses the rete testis. •In stallion, tom and many rodents it is located in a posterior position. • In dog, boar and ruminants, it is centrally located in the testis. B. Parenchyma 1- Seminiferous tubules (S.T): • Each testicular lobule is occupied by 1-4 U-shaped seminiferous tubules. • Can be divided into: Testis Convoluted S.T.
    [Show full text]
  • Ta2, Part Iii
    TERMINOLOGIA ANATOMICA Second Edition (2.06) International Anatomical Terminology FIPAT The Federative International Programme for Anatomical Terminology A programme of the International Federation of Associations of Anatomists (IFAA) TA2, PART III Contents: Systemata visceralia Visceral systems Caput V: Systema digestorium Chapter 5: Digestive system Caput VI: Systema respiratorium Chapter 6: Respiratory system Caput VII: Cavitas thoracis Chapter 7: Thoracic cavity Caput VIII: Systema urinarium Chapter 8: Urinary system Caput IX: Systemata genitalia Chapter 9: Genital systems Caput X: Cavitas abdominopelvica Chapter 10: Abdominopelvic cavity Bibliographic Reference Citation: FIPAT. Terminologia Anatomica. 2nd ed. FIPAT.library.dal.ca. Federative International Programme for Anatomical Terminology, 2019 Published pending approval by the General Assembly at the next Congress of IFAA (2019) Creative Commons License: The publication of Terminologia Anatomica is under a Creative Commons Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0) license The individual terms in this terminology are within the public domain. Statements about terms being part of this international standard terminology should use the above bibliographic reference to cite this terminology. The unaltered PDF files of this terminology may be freely copied and distributed by users. IFAA member societies are authorized to publish translations of this terminology. Authors of other works that might be considered derivative should write to the Chair of FIPAT for permission to publish a derivative work. Caput V: SYSTEMA DIGESTORIUM Chapter 5: DIGESTIVE SYSTEM Latin term Latin synonym UK English US English English synonym Other 2772 Systemata visceralia Visceral systems Visceral systems Splanchnologia 2773 Systema digestorium Systema alimentarium Digestive system Digestive system Alimentary system Apparatus digestorius; Gastrointestinal system 2774 Stoma Ostium orale; Os Mouth Mouth 2775 Labia oris Lips Lips See Anatomia generalis (Ch.
    [Show full text]
  • M. Siaka Yamoussa COULIBALY Wuchereria Bancrofti Et À Mansonella Perstans
    Ministère des Enseignements République du Mali Supérieurs et de la Recherche Un Peuple – Un But – Une Foi Scientifique Année universitaire 2009- 2010 Thèse N°……….. TITRE Apport de l’échographie scrotale dans l’étude de la filariose lymphatique dans une zone coendémique à Wuchereria bancrofti et à Mansonella perstans (Cercle de Kolokani, Mali) THESE Présentée et soutenue publiquement le.…17…/…Jul…./2010 Devant la Faculté de Médecine, de Pharmacie et d’Odonto-Stomatologie Par M. Siaka Yamoussa COULIBALY Pour obtenir le grade de Docteur en Médecine (Diplôme d’Etat) JURY Président : Professeur Sékou F. TRAORE Membres : Professeur Seydou DOUMBIA Docteur Mahamadou TOURE Directeur : Professeur Adama Diaman KEITA Co-directeur : Docteur Yaya I. COULIBALY Etude financéeDirecteur par le: Professeur NIH (Fonds IntraAdama Muros D.) KEITAà travers la section ‘‘Immunologie des Helminthes’’ et par ‘’The task force for global health’’ d’Atlanta. Apport de l’échographie scrotale dans l’étude de la filariose lymphatique dans une zone coendémique à Wuchereria bancrofti et à Mansonella perstans (Cercle de Kolokani, Mali) Dédicaces Je rends grâce à toi, Seigneur tout puissant, clément, miséricordieux et omnipotent, toi qui n’as jamais cessé d’être à mes cotés, surtout dans les moments difficiles. Merci, merci à toi de m’avoir donné la santé, la force et le courage nécessaire pour la réalisation de ce travail. Je dédie ce travail : A ma mère Catherine Marguerite Nyamba Merci pour tout l’effort consenti pour mon éducation sociale et ma réussite à l’école. Je te dis grand merci pour tout ce que tu représentes pour moi très chère mère. Tes prières, ton affection maternelle, ton soutien matériel et financier m’ont aidé à surmonter toutes les étapes de mes études combien pénibles.
    [Show full text]
  • The Rete Testis of Birds T
    J. Anat. (1982), 135, 1, pp. 97-110 97 With 27 figures Printed in Great Britain The rete testis of birds T. A. AIRE Department of Veterinary Anatomy, University ofIbadan, Nigeria. (Accepted 24 August 1981) INTRODUCTION The rete testis, especially that of mammals, has recently received much attention (Vogimayr, Waites & Setchell, 1966; Setchell, Voglmayr & Waites, 1969; Tuck, Setchell, Waites & Young, 1970). It has been shown to add to and modify the fluid entering the vasa efferentia from the testis. The rete testis of mammals contributes about 65 % of the total fluid entering the efferent ductules from the testis, and the composition of the fluid from the seminiferous tubules differs from that of the rete testis (Waites, 1977). The rete testis therefore plays an important role in the secretion of the fluid in which spermatozoa are suspended and transported to the epididymis. The structure of the rete testis of mammals has been elucidated by, among others, Roosen-Runge (1961), Bustos-Obregon & Holstein (1976), Dym (1976), Amann, Johnson & Pickett (1977), Roosen-Runge & Holstein (1978) and Osman (1978) in attempts to relate structural characteristics of the rete cell to the performance of this secretory function. However, the exact mode of function of the rete remains to be clearly understood. Apart from studies on the domestic fowl by Tingari (1971, 1972) and on the turkey by Hess, Thurston & Biellier (1976) and Hess & Thurston (1977) in which histological and some ultrastructural studies were carried out and reported, little is known about the structure and content of the avian rete testis, although the histological appearances of the rete testis of the Japanese quail (Aire, 1979a) and guinea-fowl (Aire, Ayeni & Olowo-Okorun, 1979) have been reported.
    [Show full text]
  • Pohlavní Ústrojí Muže (Organa Genitalia Masculina)
    MOČOVÝ A POHLAVNÍ SYSTÉM Pohlavní ústrojí muže POHLAVNÍ ÚSTROJÍ MUŽE (ORGANA GENITALIA MASCULINA) Varle (lat. testis, řec. orchis) Stavba varlete • párový, ze stran lehce oploštělý orgán, fce: produkce pohlavních mužských buněk, produkce mužského pohlavního hormonu – testosteronu • rozměry: d 4 – 5 cm, š 2,5 cm, tl 3 – 3,5 cm (předozadní rozměr), hm 18 – 25 g; novorozenec d cca. 1 cm, hm cca. 2 g • plochy: ◦ facies med.: plošší ◦ facies lat.: více vyklenutá (konvexní) • póly: ◦ extremitas sup.: orientován ventrolaterálně ◦ extremitas inf.: orientován dorzomediálně • okraje: ◦ margo ant. (s. liber): volný, přední okraj ◦ margo post.: zde se přikládá nadvarle Vnitřní stavba varlete • na povrchu tuhá, silná a bělavá tunica albuginea testis – z ní vystupují do nitra varlete vazivová septa (septula testis) • septa dělí varle na 200 – 300 lalůčků (lobuli testis), v lalůčcích se nachází vždy 1 – 4 stočené semenotvorné kanálky (tubuli seminiferi contorti) – tyto kanálky pak přechází v tubuli seminiferi recti (přímé kanálky), které vytváří při zadním okraji rete testis (Halleri) • v zadním okraji je vytvořeno medistinum testis (corpus Highmori), ve kterém je uloženo rete testis (Halleri) • z rete testis pak vystupuje 10 – 15 ductuli efferentes testis, které vstupují do hlavy nadvarlete a představují současně vývodné cesty varlete • struktura semenotvorných kanálků: bazální membrána, na ni nasedají zárodečné buňky (z nich v procesu zv. spermiogeneze vznikají mužské pohlavní buňky), mezi těmito buňkami jsou roztroušeny podpůrné výživné buňky Sertoliho • mezi kanálky v lalůčcích varlete je vmezeřená tkáň (vazivo, cévy ...) a intersticiální (vmezeřené) buňky Leydigovy (fce: produkce testosteronu) • appendix testis = lalůčkovitý zbytek po ductus Mülleri; z kran. konce varlete Fotografický interaktivní atlas člověka 1 / 6 Vypracoval Libor Luňáček MOČOVÝ A POHLAVNÍ SYSTÉM Pohlavní ústrojí muže • gubernaculum testis (s.
    [Show full text]
  • Anatomischer Atlas Für Studierende Und Ärzte Die Eingeweidelehre - (Figur 617-903 Und Register)
    Universitäts- und Landesbibliothek Tirol Anatomischer Atlas für Studierende und Ärzte Die Eingeweidelehre - (Figur 617-903 und Register) Toldt, Carl 1900 Organa Genitalia Virilia. Die männlichen Geschlechtswerkzeuge urn:nbn:at:at-ubi:2-5796 r ORGANA GENITALIA VIRILIA . DIE MÄNNLICHEN GESCHLECHTSWERKZEUGE . 61 * 484 Die männlichen Gesclilechtswerkzeuge . Peritonaeum Vesica urinaria . Ampulla ductus deferentis Symphysis ossium pubis Vesicula Ductus deferens Ductus ejaculatorius Urethra Utriculus Prostata Corpus cavernosum urethrae Glandula bulbouretliralis (Cowperi ) Bulbus urethrae Corpus cavernosum penis Paradidymis , Appendix testis (Morgagnii ) Epididymis Testis . Scrotum Fig . 816. Schematische Darstellung der männlichen Geschlechtswerkzeuge und ihrer Beziehungen zu der Harnblase und der Harnröhre . Seitenansicht . Tuba uterina (Isthmus )— Paroophoron ............ — Ostium uterinum tubae Infundibulum tubae -- uterinae Uterus Ostium abdominale -- tubae uterinae Epoophoron / .Vesica urinaria Ovarium —. Peritonaeum Orisicium externum uteri — Symphysis ossium pubis Vagina . ■ Clitoris Urethra - .Vestibulum vaginae Glandula vestibularis major (Bartholini ) -Labium minus pudendi Labium majus pudendi Fig . 817. Schematische Uebersicht der weiblichen Geschlechtswerkzeuge und ihrer Beziehungen zu der Harnblase und der Harnröhre . Seitenansicht . Vergleichende Uebersicht der männlichen und weiblichen Geschlechtswerkzeuge . - - Die männlichen Geschlechtswerk zeuge . 485 Ductus deferens A. testicularis (spermatica interna ) Annulus ingui -y" nalis
    [Show full text]
  • Dezhkamyaser 2015 04 23.Pdf
    Investigations into Metabolism, Transport and Function of Sulfonated Steroids in the Porcine Testicular-Epididymal Compartment Yaser Dezhkam INAUGURAL DISSERTATION Submitted to the Faculty of Veterinary Medicine in Partial Fulfillment of the Requirements for the PhD-Degree of the Faculties of Veterinary Medicine and Medicine of the Justus Liebig University Giessen Supported by the German Research Foundation (DFG) DFG Research Group "Sulfated Steroids in Reproduction" (FOR1369) 1 Investigations into Metabolism, Transport and Function of Sulfonated Steroids in the Porcine Testicular-Epididymal Compartment Inaugural Dissertation Submitted to the Faculty of Veterinary Medicine in Partial Fulfillment of the Requirements for the PhD-Degree of the Faculties of Veterinary Medicine and Medicine of the Justus Liebig University Giessen by Yaser Dezhkam from Urmia, Iran Giessen 2015 2 From the Clinic for Obstetrics, Gynecology and Andrology for Large and Small Animals with Ambulatory Service Faculty of Veterinary Medicine, Justus-Liebig-University Giessen First Supervisor: Prof. Dr. Gerhard Schuler Second Supervisor: Prof. Dr. Klaus Steger Committee Members: Prof. Dr. Gerhard Schuler (Internal Thesis Examiner) Committee Member: Prof. Dr. Marion Piechotta (External Thesis Examiner) Other committee Members: Prof. Dr. Klaus-Dieter Schlüter (Chairman of Oral Panel) Committee Member: Prof. Dr. Klaus Steger (Chairman of Oral Panel) Date of Doctoral Defense: 23. April 2015 3 DECLARATIONS “I declare that I have completed this dissertation single-handedly without the unauthorized help of a second party and only with the assistance acknowledged therein. I have appropriately acknowledged and referenced all text passages that are derived literally from or are based on the content of published or unpublished work of others, and all information that relates to verbal communications.
    [Show full text]
  • Soft-Tissue Anatomy of the Extant Hominoids Anatomy of the Extant Hominoids: a Review and Phylogenetic Analysis S
    JOA_001a.fm Page 3 Thursday, December 20, 2001 4:40 PM J. Anat. (2002) 200, pp3–49 REVIEWBlackwell Science Ltd Soft-tissue anatomy of the extant hominoids anatomy of the extant hominoids: a review and phylogenetic analysis S. Gibbs,1 M. Collard2 and B. Wood3 1Department of Human Anatomy and Cell Biology, The University of Liverpool, New Medical School, Ashton Street, Liverpool L69 3BX, UK 2Department of Anthropology and AHRB Centre for the Evolutionary Analysis of Cultural Behaviour, University College London, Gower Street, London WC1E 6BT, UK 3Department of Anthropology, George Washington University, 2110 G Street NW, Washington DC 20052, and Human Origins Program, National Museum for Natural History, Smithsonian Institution, Washington DC, USA Abstract This paper reports the results of a literature search for information about the soft-tissue anatomy of the extant non-human hominoid genera, Pan, Gorilla, Pongo and Hylobates, together with the results of a phylogenetic analysis of these data plus comparable data for Homo. Information on the four extant non-human hominoid genera was located for 240 out of the 1783 soft-tissue structures listed in the Nomina Anatomica. Numerically these data are biased so that information about some systems (e.g. muscles) and some regions (e.g. the forelimb) are over-represented, whereas other systems and regions (e.g. the veins and the lymphatics of the vascular system, the head region) are either under-represented or not represented at all. Screening to ensure that the data were suitable for use in a phylogenetic analysis reduced the number of eligible soft-tissue structures to 171.
    [Show full text]
  • By Prof. Dr. Çağdaş OTO
    by Prof. Dr. Çağdaş OTO Ankara Üniversitesi Veteriner Fakültesi Anatomi A.D. Systema Genitalia *** Bull, Ram, Goat, Stallion, Boar, Dog, Cat Organa genitalia masculina Testis, Epididymis, Ductus deferens, Gl.genitales accessoria, Urethra, Penis, Preputium Coto ORGANA GENITALIA MASCULINA Partes Genitales Masculina Internae Testis Epididymis Ductus deferens Gl.genitales accessoria Partes Genitales Masculina Externae Penis Urethra Preputium Coto ORGANA GENITALIA MASCULINA Partes Genitales Masculina Internae Testis Epididymis Ductus deferens Gl.genitales accessoria Partes Genitales Masculina Externae Penis Urethra Preputium Coto TESTIS (orchis,didymus) Male gonad or reproductive gland. Males have two testicles of similar size contained within the scrotum FUNCTIONS; Production of sperm (Spermatogenesis): in the Seminiferous tubules from germ cells) Production of androgens: (Leydig cells : Testosteron) (Sertoli cells : Inhibin) Coto TESTIS (orchis,didymus) Position and location of the scrotum; Regio inguinalis (eq,ru) Regio perianalis (su,car) * Perineal vs Perianal Coto Testis Extremitas capitata Extremitas caudata Fascies lateralis Fascies medialis Margo liber Margo epididymalis Coto Testis Descensus testiculorum * Spatium inguinale * Canalis inguinalis * Proc.vaginalis * Canalis vaginalis * Cavum vaginale *** orchyitis *** cryptorchidism *** inguinal hernia Coto Covering membrans Scrotum Tunica dartos Fascia spermatica ext. (m.obliq.ext.abdominis) Fascia cremasterca (m.obliq.int.abdominis) M.cremaster (m.obliq.int.abdominis)
    [Show full text]