ANAT 2241 Histology: Basic and Systematic Semester 1, 2016
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Chapter 28 *Lecture Powepoint
Chapter 28 *Lecture PowePoint The Female Reproductive System *See separate FlexArt PowerPoint slides for all figures and tables preinserted into PowerPoint without notes. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Introduction • The female reproductive system is more complex than the male system because it serves more purposes – Produces and delivers gametes – Provides nutrition and safe harbor for fetal development – Gives birth – Nourishes infant • Female system is more cyclic, and the hormones are secreted in a more complex sequence than the relatively steady secretion in the male 28-2 Sexual Differentiation • The two sexes indistinguishable for first 8 to 10 weeks of development • Female reproductive tract develops from the paramesonephric ducts – Not because of the positive action of any hormone – Because of the absence of testosterone and müllerian-inhibiting factor (MIF) 28-3 Reproductive Anatomy • Expected Learning Outcomes – Describe the structure of the ovary – Trace the female reproductive tract and describe the gross anatomy and histology of each organ – Identify the ligaments that support the female reproductive organs – Describe the blood supply to the female reproductive tract – Identify the external genitalia of the female – Describe the structure of the nonlactating breast 28-4 Sexual Differentiation • Without testosterone: – Causes mesonephric ducts to degenerate – Genital tubercle becomes the glans clitoris – Urogenital folds become the labia minora – Labioscrotal folds -
Chapter 24 Primary Sex Organs = Gonads Produce Gametes Secrete Hormones That Control Reproduction Secondary Sex Organs = Accessory Structures
Anatomy Lecture Notes Chapter 24 primary sex organs = gonads produce gametes secrete hormones that control reproduction secondary sex organs = accessory structures Development and Differentiation A. gonads develop from mesoderm starting at week 5 gonadal ridges medial to kidneys germ cells migrate to gonadal ridges from yolk sac at week 7, if an XY embryo secretes SRY protein, the gonadal ridges begin developing into testes with seminiferous tubules the testes secrete androgens, which cause the mesonephric ducts to develop the testes secrete a hormone that causes the paramesonephric ducts to regress by week 8, in any fetus (XX or XY), if SRY protein has not been produced, the gondal ridges begin to develop into ovaries with ovarian follicles the lack of androgens causes the paramesonephric ducts to develop and the mesonephric ducts to regress B. accessory organs develop from embryonic duct systems mesonephric ducts / Wolffian ducts eventually become male accessory organs: epididymis, ductus deferens, ejaculatory duct paramesonephric ducts / Mullerian ducts eventually become female accessory organs: oviducts, uterus, superior vagina C. external genitalia are indeterminate until week 8 male female genital tubercle penis (glans, corpora cavernosa, clitoris (glans, corpora corpus spongiosum) cavernosa), vestibular bulb) urethral folds fuse to form penile urethra labia minora labioscrotal swellings fuse to form scrotum labia majora urogenital sinus urinary bladder, urethra, prostate, urinary bladder, urethra, seminal vesicles, bulbourethral inferior vagina, vestibular glands glands Strong/Fall 2008 Anatomy Lecture Notes Chapter 24 Male A. gonads = testes (singular = testis) located in scrotum 1. outer coverings a. tunica vaginalis =double layer of serous membrane that partially surrounds each testis; (figure 24.29) b. -
GROSS and HISTOMORPHOLOGY of the OVARY of BLACK BENGAL GOAT (Capra Hircus)
VOLUME 7 NO. 1 JANUARY 2016 • pages 37-42 MALAYSIAN JOURNAL OF VETERINARY RESEARCH RE# MJVR – 0006-2015 GROSS AND HISTOMORPHOLOGY OF THE OVARY OF BLACK BENGAL GOAT (Capra hircus) HAQUE Z.1*, HAQUE A.2, PARVEZ M.N.H.3 AND QUASEM M.A.1 1 Department of Anatomy and Histology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh 2 Chittagong Veterinary and Animal Sciences University, Khulshi, Chittagong 3 Department of Anatomy and Histology, Faculty of Veterinary and Animal Science, Hajee Mohammad Danesh Science and Technology University, Basherhat, Dinajpur * Corresponding author: [email protected] ABSTRACT. Ovary plays a vital 130.07 ± 12.53 µm and the oocyte diameter role in the reproductive biology and was 109.8 ± 5.75 µm. These results will be biotechnology of female animals. In this helpful to manipulate ovarian functions in study, both the right and left ovaries of small ruminants. the Black Bengal goat were collected from Keywords: Morphometry, ovarian the slaughter houses of different Thanas follicles, cortex, medulla, oocyte. in the Mymensingh district. For each of the specimens, gross parameters such as INTRODUCTION weight, length and width were recorded. Then they were processed and stained with Black Bengal goat is the national pride of H&E for histomorphometry. This study Bangladesh. The most promising prospect revealed that the right ovary (0.53 ± 0.02 of Black Bengal goat in Bangladesh is g) was heavier than the left (0.52 ± 0.02 g). that this dwarf breed is a prolific breed, The length of the right ovary (1.26 ± 0.04 requiring only a small area to breed and cm) was lower than the left (1.28 ± 0.02 with the advantage of their selective cm) but the width of the right (0.94 ± 0.02 feeding habit with a broader feed range. -
Ans 214 SI Multiple Choice Set 4 Weeks 10/14 - 10/23
AnS 214 SI Multiple Choice Set 4 Weeks 10/14 - 10/23 The following multiple choice questions pertain to material covered in the last two weeks' lecture sets. Answering the following questions will aid your exam preparation. These questions are meant as a gauge of your content knowledge - use them to pinpoint areas where you need more preparation. 1. A heifer begins ovarian activity at A. 6-8 months B. 8-10 months C.10-12 months D. 12-14 months E. 24 months 2. The gestation length of a cow is A. 82 days C. 166 days D. 283 days E. 311 days 3. All of the following produce hormones vital to ovarian cyclicity EXCEPT A. hypothalamus B. ovary C. posterior pituitary D. uterus E. all of the above are correct 4. Which of the following structures is INCORRECTLY matched to the hormones it produces? A. uterus: PGF2a B. ovary: testosterone, activin, estrogen, oxytocin C. placenta: progesterone, testosterone, estrogen D. anterior pituitary: ACTH, FSH, LH E. hypothalamus: GnRH, CRH 5. In the female reproductive system of all species A. the ovaries are supported by the mesometrium B. urine can only exit via the urethra via the suburethral diverticulum C. the uterus produces progesterone D. the oviduct is supported by the mesosalpinx E. the ovary is directly connected to the oviduct 6. Which of the following is FALSE about the mare? A. Ovulates from the medulla because of an inverted ovarian structure B. Ovulates a 2n oocyte C. Does not have a suburethral diverticulum D. Ovulates at only one site on the ovary, called the ovulation fossa E. -
And Theca Interna Cells from Developing Preovulatory Follicles of Pigs B
Differential production of steroids by dispersed granulosa and theca interna cells from developing preovulatory follicles of pigs B. K. Tsang, L. Ainsworth, B. R. Downey and G. J. Marcus * Reproductive Biology Unit, Department of Obstetrics and Gynecology and Department of Physiology, University of Ottawa, Ottawa Civic Hospital, Ottawa, Ontario, Canada Kl Y 4E9 ; tAnimal Research Centre, Agriculture Canada, Ottawa, Ontario, Canada K1A 0C6; and \Department of Animal Science, Macdonald College of McGill University, Ste Anne de Bellevue, Quebec, Canada H9X ICO Summary. Dispersed granulosa and theca interna cells were recovered from follicles of prepubertal gilts at 36, 72 and 108 h after treatment with 750 i.u. PMSG, followed 72 h later with 500 i.u. hCG to stimulate follicular growth and ovulation. In the absence of aromatizable substrate, theca interna cells produced substantially more oestrogen than did granulosa cells. Oestrogen production was increased markedly in the presence of androstenedione and testosterone in granulosa cells but only to a limited extent in theca interna cells. The ability of both cellular compartments to produce oestrogen increased up to 72 h with androstenedione being the preferred substrate. Oestrogen production by the two cell types incubated together was greater than the sum produced when incubated alone. Theca interna cells were the principal source of androgen, predominantly androstenedione. Thecal androgen production increased with follicular development and was enhanced by addition of pregnenolone or by LH 36 and 72 h after PMSG treatment. The ability of granulosa and thecal cells to produce progesterone increased with follicular development and addition of pregnenolone. After exposure of developing follicles to hCG in vivo, both cell types lost their ability to produce oestrogen. -
Electron Microscopy and Histochemical Correlation of Human Anterior Pituitary Cells
Electron Microscopy and Histochemical Correlation of Human Anterior Pituitary Cells Carlos Paiz, MD and Gordon R. Hennigar, MD THE PARS ANrERIOR of human adenohypophysis has been studied extensively by histochemical and tinctorial methods."-8 Multiple nomenclatures have been developed to describe the various cell types, but the ultimate goal is to adopt a terminology based solely on function. Electron microscopy has served to clarify in part the fine structure of the adenohypophysis, and its contribution to date has been the attempted correlation of granular size and shape with specific hormonal secretion.9-" Similar studies have been made in animal species other than man.12-'7 In several human cell types, the granules are so similar that it is fre- quently difficult if not impossible to distinguish the cells on morphologic grounds alone. The use of thick-thin section correlation for light and electron microscopy can, in part, clarify this problem, since histochem- ical properties at the light level may be correlated with fine structural differences within the same cell at the electron microscopic level. Such correlations have served three purposes: (1) We have been able to relate certain serous, mucoid, and seemingly chromophobe cells of light microscopy with the corresponding electron microscopic equiv- alents. (2) In so doing, we have demonstrated that cells having the same or similar granule morphology with electron microscopy are strik- ingly different with light microscopy histochemistry. (3) The thick-thin section method of comparison has provided us with the opportunity to relate fine structural differences within pituitary cells with the corre- sponding variable dye binding seen in a single cell with light micros- copy. -
Oogenesis/Folliculogenesis Ovarian Follicle Endocrinology
Oogenesis/Folliculogenesis & Ovarian Follicle Endocrinology follicle - composite structure Ovarian Follicle that will produce mature oocyte – primordial follicle - germ cell (oocyte) with a single layer ZP of mesodermal cells around it TI & TE it – as development of follicle progresses, oocyte will obtain a ‘‘halo’’ of cells and membranes that are distinct: Oocyte 1. zona pellucide (ZP) 2. granulosa (Gr) 3. theca interna and externa (TI & TE) Gr Summary: The follicle is the functional unit of the ovary. One female gamete, the oocyte is contained in each follicle. The granulosa cells produce hormones (estrogen and inhibin) that provide ‘status’ signals to the pituitary and brain about follicle development. Mammal - Embryonic Ovary Germ Cells Division and Follicle Formation from Makabe and van Blerkom, 2006 Oogenesis and Folliculogenesis GGrraaaafifiaann FFoolliclliclele SStrtruucctuturree SF-1 Two Cell Steroidogenesis • Common in mammalian ovarian follicle • Part of the steroid pathway in – Granulosa – Theca interna • Regulated by – Hypothalamo-pituitary axis – Paracrine factors blood ATP FSH LH ATP Estradiol-17β FSH-R LH-R mitochondrion cAMP cAMP CHOL P450arom PKA 17βHSD C P450scc PKA C C C cholesterol pool PREG Testosterone StAR 3βHSD Estrone SF-1 PROG 17βHSD P450arom Androstenedione nucleus Andro theca Mammals granulosa Activins & Inhibins Pituitary - Gonadal Regulation of the FSH Adult Ovary E2 Inhibin Activin Follistatin Inhibins and Activins •Transforming Growth Factor -β (TGF-β) family •Many gonadal cells produce β subunits •In -
Renal Cell Carcinoma: from a Pathologist's Perspective
SMGr up Histologic Aspect of Renal Cell Carcinomas Solène-Florence Kammerer-Jacquet and Nathalie Rioux-Leclercq* Department*Corresponding of Pathology, author: Pontchaillou Hospital, France Nathalie Rioux-Leclercq, Department of Pathology, Pontchaillou Hospital, 2 rue Henri le Guilloux, 35300 Rennes Cedex 9, France, Tel: +33 2 99 28 42 79; Fax: +Published 33 2 99 28 Date: 42 84; Email: [email protected] July 18, 2016 ABSTRACT the ISUP (International Society of Urologic Pathology). The most recent recommendations were International guidelines for the classification of renal tumors in adults are provided from (RCC). In this established in 2012, and the 2016 WHO classification incorporated these guidelines but also clinical, pathological, and molecular characteristics of the renal cell carcinomas review, we focus on the macroscopic, histologic immunohistochemical and cytogenetic criteria (ccRCC) (P-RCC) (Ch-RCC), MiT family translocation RCC, that lead to the diagnosis of RCC. The main histologic subtypes of RCC include clear cell RCC collecting duct carcinoma, and medullary renal cell carcinoma. We also describe the other and rare , papillary RCC , chromophobe RCC entities of RCC recognized in the 2016 WHO classification: hereditary leiomyomatosis associated RCC, succinate dehydrogenase deficient RCC, mucinous tubular and spindle cell carcinoma, (AML). tubulocystic RCC, acquired cystic disease associated RCC, mixed epithelial and stromal tumor of Renalthe kidney, Cell Carcinoma clear cell | www.smgebooks.com papillary RCC, and epithelioid angiomyolipoma 1 Copyright Rioux-Leclercq N.This book chapter is open access distributed under the Creative Commons Attribu- tion 4.0 International License, which allows users to download, copy and build upon published articles even for commercial purposes, as long as the author and publisher are properly credited. -
Smooth Muscle-Like Cells in the Theca Externa of Ovarian Follicles in the Sheep J
SMOOTH MUSCLE-LIKE CELLS IN THE THECA EXTERNA OF OVARIAN FOLLICLES IN THE SHEEP J. D. O'SHEA Department of Veterinary Preclinical Sciences, University of Melbourne, Victoria, Australia {Received 17th July 1970) Summary. Mature ovarian follicles from three sheep were examined by electron microscopy. Many cells in the theca externa contained cytoplasmic filaments and dense bodies characteristic of smooth muscle cells. These observations suggest a contractile function in the theca externa. Light microscope studies to determine whether muscle cells are present in the walls of ovarian follicles have produced conflicting results (e.g. Guttmacher & Guttmacher, 1921; Claesson, 1947). It has recently been shown by electron microscopy (Osvaldo-Decima, 1970; O'Shea, 1970a, b) that cells with the characteristic ultrastructural features of smooth muscle are present in the theca externa of ovarian follicles in the rat and the rhesus monkey. This communica¬ tion records the presence of smooth muscle-like cells in the walls of ovarian follicles in the sheep. Mature ovarian follicles from three Border Leicester Merino ewes, aged 5 to 6 years, were examined by electron microscopy. These sheep had come into oestrus 21 to 29 hr before the follicles were collected. Under thiamylal sodium (Surital, Parke Davis) anaesthesia the ovaries were inspected visually and the largest unruptured follicle from each sheep was selected. These follicles were approximately 7 to 8 mm in diameter, and would have been expected to rupture within 3£ hr. This estimate was based on the time of onset of the preovulatory luteinizing hormone surge (Cumming, Brown, Blockey, Winfield, Baxter & Goding, 1971) which occurred 22i, 23£ and 24£ hr respectively before the follicles were obtained. -
Molecular Genetics and Immunohistochemistry Characterization of Uncommon and Recently Described Renal Cell Carcinomas
Review Article Molecular genetics and immunohistochemistry characterization of uncommon and recently described renal cell carcinomas Qiu Rao1*, Qiu-Yuan Xia1*, Liang Cheng2, Xiao-Jun Zhou1 1Department of Pathology, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China; 2Department of Pathology and Laboratory, Indiana University School of Medicine, Indianapolis, IN, USA *These authors contributed equally to this work. Correspondence to: Dr. Xiao-Jun Zhou. Department of Pathology, Nanjing Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu 210002, China. Email: [email protected]. Abstract: Renal cell carcinoma (RCC) compromises multiple types and has been emerging dramatically over the recent several decades. Advances and consensus have been achieved targeting common RCCs, such as clear cell carcinoma, papillary RCC and chromophobe RCC. Nevertheless, little is known on the characteristics of several newly-identified RCCs, including clear cell (tubulo) papillary RCC, Xp11 translocation RCC, t(6;11) RCC, succinate dehydrogenase (SDH)-deficient RCC, acquired cystic disease- associated RCC, hereditary leiomyomatosis RCC syndrome-associated RCC, ALK translocation RCC, thyroid-like follicular RCC, tubulocystic RCC and hybrid oncocytic/chromophobe tumors (HOCT). In current review, we will collect available literature of these newly-described RCCs, analyze their clinical pathologic characteristics, discuss their morphologic and immunohistologic features, and finally summarize their molecular and genetic evidences. We expect this review would be beneficial for the understanding of RCCs, and eventually promote clinical management strategies. Keywords: Renal cell carcinoma (RCC); renal tumor; immunohistochemistry; molecular genetics Submitted Apr 14, 2015. Accepted for publication Jan 15, 2016. doi: 10.3978/j.issn.1000-9604.2016.01.03 View this article at: http://dx.doi.org/10.3978/j.issn.1000-9604.2016.01.03 Introduction neoplasms and emerging/provisional new entities. -
Effect of Exogenous Luteinizing Hormone and Estrogen on the Corpora Lutea of the Hypofhysectomized Rabbit
THE EFFECT OF EXOGENOUS LUTEINIZING HORMONE AND ESTROGEN ON THE CORPORA LUTEA OF THE HYPOFHYSECTOMIZED RABBIT by DON RICHARD WARREN B.S., Kansas State University, 1964 A MASTER'S THESIS submitted in partial fulfillment of the requirements for the degree MASTER OF SCIENCE Department of Zoology KANSAS STATE UNIVERSITY Manhattan, Kansas 1967 Major Professor: f 3 TABLE OF CONTENTS INTRODUCTION 1 LITERATURE REVIEW 2 MATERIALS AND METHODS 6 RESULTS 10 DISCUSSION 14 CONCLUSIONS 17 ACKNOWLEDGEMENTS 18 BIBLIOGRAPHY 19 , INTRODUCTION The ovary has two responsibilities in the intact normally functioning animal: (1) the production of follicles with fertilizable ova, (2) the production of steroids for normal physiology of the uterus and mammary tissue and feedback mechanisms to the pituitary via the hypothalmus. A malfunction results in abberation of the reproduc- tive cycle and associated behavorial phenomenon. The graafian follicle ovulates as a result of prolonged action of follicle stimulating hormone (FSH) and 10-12 hours after a surge of release of luteinizing hormone (LH) from the anterior pituitary (Hilliard et al. , 1964) which, in the rabbit, is a result of the copulatory stimulus. This stimulus sends impulses to the hypothal- amus which releases a luteinizing hormone releasing factor (LRF) into the portal circulation which in turn causes the anterior pituitary to release LH (Sawyer, 1959). Estrogen being produced in the graafian follicle also affects directly the anterior pituitary and the hypothalamus to activate release of LH into the circulation where it is reflected in elevated plasma ovarian ascorbic acid depletion (Kanematsu and Sawyer, 1964). Hypophysectoray , involving the complete removal of the pituitary gland, is a useful tool in neuroendocrinological research and therapy. -
Other Useful Books
Other Useful Books Dictionaries: Leeson TS, Leeson CR: Histology, 4th ed. Philadel phia: Saunders, 1981. Dorland's Illustrated Medical Dictionary, 26th ed. Lentz, TL: Cell Fine Structure. Philadelphia: Saun Philadelphia: Saunders, 1981. ders, 1971. Melloni's Illustrated Medical Dictionary. Balti Rhodin JAG: Histology, A Text and Atlas. New more: Williams and Wilkins, 1979. York: Oxford University Press, 1974. Stedman's Illustrated Medical Dictionary, 24th ed. Williams PL, Warwick R: Gray's Anatomy, 36th Baltimore: Williams and Wilkins, 1982. English edition. Philadelphia: Saunders, 1980. Weiss L, Greep ROO: Histology, 4th ed. New York: McGraw-Hill, 1977. Textbooks: Histology and Cytology Wheater PR, Burkitt HG, Daniels VG: Functional Arey LB: Human Histology, 4th ed. Philadelphia: Histology. Edinburgh: Churchill Livingstone, 1979. Saunders, 1974. Bloom W, Fawcett DW: A Textbook of Histology, Textbooks: Pathology 10th ed. Philadelphia: Saunders, 1974. Anderson WAD, Kissane JM: Pathology, 7th ed. Borysenko M, Borysenko J, Beringer T, Gustafson St. Louis: Mosby, 1977. A: Functional Histology. A Core Text. Boston: Lit tle, Brown, 1979. Anderson WAD, Scotti TM: Synopsis of Pathology, 10th ed. St. Louis: Mosby, 1980. Copenhaver WM, Kelly DE, Wood RL: Bailey's Golden A: Pathology. Understanding Human Dis Textbook of Histology, 17th ed. Baltimore: Wil ease. Baltimore: Williams and Wilkins, 1982. liams and Wilkins, 1978. King D, Geller LM, Krieger P, Silva F, Lefkowitch Cowdry EV: A Textbook of Histology, 4th ed. Phila JH: A Survey of Pathology. New York: Oxford delphia: Lea and Febiger, 1950. University Press, 1976. Dyson RD: Cell Biology. A Molecular Approach, Robbins SL, Cotran RS: Pathologic Basis of Dis 2nd ed. Boston: Allyn and Bacon, 1978.