Reproductive System Grade 7, Lessons #1
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Reference Sheet 1
MALE SEXUAL SYSTEM 8 7 8 OJ 7 .£l"00\.....• ;:; ::>0\~ <Il '"~IQ)I"->. ~cru::>s ~ 6 5 bladder penis prostate gland 4 scrotum seminal vesicle testicle urethra vas deferens FEMALE SEXUAL SYSTEM 2 1 8 " \ 5 ... - ... j 4 labia \ ""\ bladderFallopian"k. "'"f"";".'''¥'&.tube\'WIT / I cervixt r r' \ \ clitorisurethrauterus 7 \ ~~ ;~f4f~ ~:iJ 3 ovaryvagina / ~ 2 / \ \\"- 9 6 adapted from F.L.A.S.H. Reproductive System Reference Sheet 3: GLOSSARY Anus – The opening in the buttocks from which bowel movements come when a person goes to the bathroom. It is part of the digestive system; it gets rid of body wastes. Buttocks – The medical word for a person’s “bottom” or “rear end.” Cervix – The opening of the uterus into the vagina. Circumcision – An operation to remove the foreskin from the penis. Cowper’s Glands – Glands on either side of the urethra that make a discharge which lines the urethra when a man gets an erection, making it less acid-like to protect the sperm. Clitoris – The part of the female genitals that’s full of nerves and becomes erect. It has a glans and a shaft like the penis, but only its glans is on the out side of the body, and it’s much smaller. Discharge – Liquid. Urine and semen are kinds of discharge, but the word is usually used to describe either the normal wetness of the vagina or the abnormal wetness that may come from an infection in the penis or vagina. Duct – Tube, the fallopian tubes may be called oviducts, because they are the path for an ovum. -
Reproductive System, Day 2 Grades 4-6, Lesson #12
Family Life and Sexual Health, Grades 4, 5 and 6, Lesson 12 F.L.A.S.H. Reproductive System, day 2 Grades 4-6, Lesson #12 Time Needed 40-50 minutes Student Learning Objectives To be able to... 1. Distinguish reproductive system facts from myths. 2. Distinguish among definitions of: ovulation, ejaculation, intercourse, fertilization, implantation, conception, circumcision, genitals, and semen. 3. Explain the process of the menstrual cycle and sperm production/ejaculation. Agenda 1. Explain lesson’s purpose. 2. Use transparencies or your own drawing skills to explain the processes of the male and female reproductive systems and to answer “Anonymous Question Box” questions. 3. Use Reproductive System Worksheets #3 and/or #4 to reinforce new terminology. 4. Use Reproductive System Worksheet #5 as a large group exercise to reinforce understanding of the reproductive process. 5. Use Reproductive System Worksheet #6 to further reinforce Activity #2, above. This lesson was most recently edited August, 2009. Public Health - Seattle & King County • Family Planning Program • © 1986 • revised 2009 • www.kingcounty.gov/health/flash 12 - 1 Family Life and Sexual Health, Grades 4, 5 and 6, Lesson 12 F.L.A.S.H. Materials Needed Classroom Materials: OPTIONAL: Reproductive System Transparency/Worksheets #1 – 2, as 4 transparencies (if you prefer not to draw) OPTIONAL: Overhead projector Student Materials: (for each student) Reproductive System Worksheets 3-6 (Which to use depends upon your class’ skill level. Each requires slightly higher level thinking.) Public Health - Seattle & King County • Family Planning Program • © 1986 • revised 2009 • www.kingcounty.gov/health/flash 12 - 2 Family Life and Sexual Health, Grades 4, 5 and 6, Lesson 12 F.L.A.S.H. -
Chlamydia Trachomatis Infection Mimicking Testicular Malignancy In
270 Sex Transm Inf 1999;75:270 Chlamydia trachomatis infection mimicking Sex Transm Infect: first published as 10.1136/sti.75.4.270 on 1 August 1999. Downloaded from Case report: testicular malignancy in a young man cobblestone A M Ward, J H Rogers, C S Estcourt A young man with a low risk history for sexually transmitted diseases presented with an appar- ently longstanding, previously asymptomatic scrotal mass, highly suggestive of testicular malignancy on palpation. Ultrasound sited the lesion in the epididymis. Although there was no evidence of urethritis, chlamydia polymerase chain reaction testing was positive. Tumour mark- ers were negative. Complete clinical and radiological response was achieved after a long course of doxycycline treatment, without surgical exploration of the scrotum, confirming the diagnosis of chlamydial epididymitis. (Sex Transm Inf 1999;75:270) Keywords: testicular malignancy; Chlamydia trachomatis; epididymitis A 36 year old Chinese man presented with a 2 Fifteen months later the patient was asymp- day history of a sore scrotal lump. He had no tomatic with normal examination and ultra- urethral discharge or dysuria, and no history of sonography, and negative urinary chlamydia sexually transmitted diseases. He denied any PCR. He declined semen analysis. extramarital sexual partners since his marriage 5 years ago, but acknowledged four or five female partners before that. The couple had one child and were using condoms for contra- Discussion ception. Longstanding, subacute epididymitis, present- Examination revealed left sided scrotal ing with a painless scrotal mass, and without swelling and a mildly tender mass, inseparable evidence of urethritis, is an unusual complica- from the lower pole of the left testis, with an tion of chlamydial infection.1 irregular surface and rock hard consistency. -
Human Reproductive Systems Males Vs. Females Learning Goals • Students Will Describe the Basic Anatomy and Physiology of the Male and Female Reproductive Systems
Human Reproductive Systems Males vs. Females Learning Goals • Students will describe the basic anatomy and physiology of the male and female reproductive systems. Gonads are sex organs that create gametes? & excrete sex hormones Gonads are sex organs that create gametes & excrete sex hormones Male gonads are called testes Female gonads are called ovaries -Are the site of sperm production -Are the site of egg production & maturation Gametes are also called sex ?cells, and are used to create offspring with a mixture of genetic information. Gametes are also called sex cells, and are used to create offspring with a mixture of genetic information. Male gametes are called sperm Female gametes are called -produce 300-500 million per 5ml eggs/ova of semen -70,000-100,000 at birth -release 1-2 per month from puberty to menopause. Sex Hormones are chemical? signals that tell the sex organs how to function. Sex Hormones are chemical signals that tell the sex organs how to function. Male hormone is called Female hormones are estrogen testosterone and progesterone -released from the testes -released from the ovary -controls sperm production -controls egg production & release Duct systems help deliver gametes from gonads and are the site of fertilization in females and delivers sperm out of the body in males. Male duct systems include: Epididymis -site of sperm maturation (about 20 days for sperm to mature) Male duct systems include: Vas deferens -Tube for sperm to travel through as they leave the testes Male duct systems include: Urethra -shared tube for release of semen from reproductive tract and urine from the bladder. -
Algal Sex Determination and the Evolution of Anisogamy James Umen, Susana Coelho
Algal Sex Determination and the Evolution of Anisogamy James Umen, Susana Coelho To cite this version: James Umen, Susana Coelho. Algal Sex Determination and the Evolution of Anisogamy. Annual Review of Microbiology, Annual Reviews, 2019, 73 (1), 10.1146/annurev-micro-020518-120011. hal- 02187088 HAL Id: hal-02187088 https://hal.sorbonne-universite.fr/hal-02187088 Submitted on 17 Jul 2019 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Annu. Rev. Microbiol. 2019. 73:X–X https://doi.org/10.1146/annurev-micro-020518-120011 Copyright © 2019 by Annual Reviews. All rights reserved Umen • Coelho www.annualreviews.org • Algal Sexes and Mating Systems Algal Sex Determination and the Evolution of Anisogamy James Umen1 and Susana Coelho2 1Donald Danforth Plant Science Center, St. Louis, Missouri 63132, USA; email: [email protected] 2Sorbonne Université, UPMC Université Paris 06, CNRS, Algal Genetics Group, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, CS 90074, F-29688, Roscoff, France [**AU: Please write the entire affiliation in French or write it all in English, rather than a combination of English and French**] ; email: [email protected] Abstract Algae are photosynthetic eukaryotes whose taxonomic breadth covers a range of life histories, degrees of cellular and developmental complexity, and diverse patterns of sexual reproduction. -
Meiosis & Sexual Reproduction Heyer 1
Meiosis & Sexual Reproduction Meiosis & Sex Cells Arise From Preexisting Cells I. Asexual (Mitotic) Reproduction a. Mitosis: production of two identical nuclei b. Cytokinesis: physical division of the cell into two II. Sexual (Meiotic) Reproduction a. Meiosis: production of four non-identical nuclei b. Cytokinesis: physical division of the cell c. Fertilization: fusion of two Sexual reproduction creates sex cells d. Syngamy: fusion of new combinations of alleles. two nuclei Diploid cells have Homologous chromosomes [Homologs]: homologous pairs of chromosomes: same loci, maybe different alleles. 1 set from mom, 1 set from dad. Meiosis: Reductive Division Sex = Meiosis + Syngamy — Reduces Chromosome Number in Half Meiosis has 2 consecutive divisions – Meiosis I: Homologous pairs separate – Meiosis II: Sister chromatids separate Each division has a prophase, metaphase, anaphase and a telophase Meiosis: Syngamy: 2n 1n 1n 2n Diploid haploid Haploid diploid Heyer 1 Meiosis & Sexual Reproduction Chromosomes Matched in Sexual Life Cycles Homologous Pairs (Homologs) Human somatic (body) cells – 23 pairs = 46 chromosomes – Homolog = same size, shape, centromere, and genes Pairs #1 - 22 = Autosomes – Both male and female Pair #23 = Sex Chromosomes – Determine gender – XX = female, XY = male Diploid life history Alternation of Generations Haploid life history (animals) (plants) (fungi) Human karyotype Somatic (body) cells are Diploid Meiosis I Gametes (sex cells) are Haploid Diploid (2n) Prophase I – Two of each kind of chromosome Chromosomes -
The Diversity of Plant Sex Chromosomes Highlighted Through Advances in Genome Sequencing
G C A T T A C G G C A T genes Review The Diversity of Plant Sex Chromosomes Highlighted through Advances in Genome Sequencing Sarah Carey 1,2 , Qingyi Yu 3,* and Alex Harkess 1,2,* 1 Department of Crop, Soil, and Environmental Sciences, Auburn University, Auburn, AL 36849, USA; [email protected] 2 HudsonAlpha Institute for Biotechnology, Huntsville, AL 35806, USA 3 Texas A&M AgriLife Research, Texas A&M University System, Dallas, TX 75252, USA * Correspondence: [email protected] (Q.Y.); [email protected] (A.H.) Abstract: For centuries, scientists have been intrigued by the origin of dioecy in plants, characterizing sex-specific development, uncovering cytological differences between the sexes, and developing theoretical models. Through the invention and continued improvements in genomic technologies, we have truly begun to unlock the genetic basis of dioecy in many species. Here we broadly review the advances in research on dioecy and sex chromosomes. We start by first discussing the early works that built the foundation for current studies and the advances in genome sequencing that have facilitated more-recent findings. We next discuss the analyses of sex chromosomes and sex-determination genes uncovered by genome sequencing. We synthesize these results to find some patterns are emerging, such as the role of duplications, the involvement of hormones in sex-determination, and support for the two-locus model for the origin of dioecy. Though across systems, there are also many novel insights into how sex chromosomes evolve, including different sex-determining genes and routes to suppressed recombination. We propose the future of research in plant sex chromosomes should involve interdisciplinary approaches, combining cutting-edge technologies with the classics Citation: Carey, S.; Yu, Q.; to unravel the patterns that can be found across the hundreds of independent origins. -
Section 6: Sex Cells and Fertilisation
S ection 6: S ex Cells and Fertilisation U se the w ords in the w ord bank below to com plete the sentences below : S maller, vagina, anther, halved, fertilisation, nucleus, male, half, gametes, D N A , stigma, female, ovules, pollen, pollen tube, four, zygote, threadlike, one, identical, genes, amino acids, protein, function, meiosis, sex chromosomes, male S ome plants reproduce sexually. T he sexual parts are inside the flow ers. M ost flow ering plants have flow ers w ith both __ ___ __ and _ ___ __ parts. T hese sexual parts produce special sex cells called _ ____ ___ _. Label the diagram above. T he male part of a flow ering plant is called the ___ ___ ___ _ and produces __ ______. T he female part is called the _ ___ ___ _ and produces ovules. Pollen grains are __ ___ ____ and more numerous than ovules, w hich are larger. Fertilisation in flow ering plants occurs by pollen trains being transferred to the _ ___ ___ _. A _____ ___ __ _____then grow s dow n into the ovary and into an ovule. A male gamete then passes dow n the tube and fuses w ith egg cell. T his process is called 1 __ __________. T he fertilised egg is now called a ___ ___ __. Fertilisation produces variety in the offspring because genetically identical gametes form in different w ays, producing different combinations. S exual Reproduction In H umans Label the follow ing diagrams: 2 In humans, fertilisation takes place in the oviduct. -
Non-Certified Epididymitis DST.Pdf
Clinical Prevention Services Provincial STI Services 655 West 12th Avenue Vancouver, BC V5Z 4R4 Tel : 604.707.5600 Fax: 604.707.5604 www.bccdc.ca BCCDC Non-certified Practice Decision Support Tool Epididymitis EPIDIDYMITIS Testicular torsion is a surgical emergency and requires immediate consultation. It can mimic epididymitis and must be considered in all people presenting with sudden onset, severe testicular pain. Males less than 20 years are more likely to be diagnosed with testicular torsion, but it can occur at any age. Viability of the testis can be compromised as soon as 6-12 hours after the onset of sudden and severe testicular pain. SCOPE RNs must consult with or refer all suspect cases of epididymitis to a physician (MD) or nurse practitioner (NP) for clinical evaluation and a client-specific order for empiric treatment. ETIOLOGY Epididymitis is inflammation of the epididymis, with bacterial and non-bacterial causes: Bacterial: Chlamydia trachomatis (CT) Neisseria gonorrhoeae (GC) coliforms (e.g., E.coli) Non-bacterial: urologic conditions trauma (e.g., surgery) autoimmune conditions, mumps and cancer (not as common) EPIDEMIOLOGY Risk Factors STI-related: condomless insertive anal sex recent CT/GC infection or UTI BCCDC Clinical Prevention Services Reproductive Health Decision Support Tool – Non-certified Practice 1 Epididymitis 2020 BCCDC Non-certified Practice Decision Support Tool Epididymitis Other considerations: recent urinary tract instrumentation or surgery obstructive anatomic abnormalities (e.g., benign prostatic -
Ultrasonography of the Scrotum in Adults
University of Massachusetts Medical School eScholarship@UMMS Radiology Publications and Presentations Radiology 2016-07-01 Ultrasonography of the scrotum in adults Anna L. Kuhn University of Massachusetts Medical School Et al. Let us know how access to this document benefits ou.y Follow this and additional works at: https://escholarship.umassmed.edu/radiology_pubs Part of the Male Urogenital Diseases Commons, Radiology Commons, Reproductive and Urinary Physiology Commons, Urogenital System Commons, and the Urology Commons Repository Citation Kuhn AL, Scortegagna E, Nowitzki KM, Kim YH. (2016). Ultrasonography of the scrotum in adults. Radiology Publications and Presentations. https://doi.org/10.14366/usg.15075. Retrieved from https://escholarship.umassmed.edu/radiology_pubs/173 Creative Commons License This work is licensed under a Creative Commons Attribution-Noncommercial 3.0 License This material is brought to you by eScholarship@UMMS. It has been accepted for inclusion in Radiology Publications and Presentations by an authorized administrator of eScholarship@UMMS. For more information, please contact [email protected]. Ultrasonography of the scrotum in adults Anna L. Kühn, Eduardo Scortegagna, Kristina M. Nowitzki, Young H. Kim Department of Radiology, UMass Memorial Medical Center, University of Massachusetts Medical Center, Worcester, MA, USA REVIEW ARTICLE Ultrasonography is the ideal noninvasive imaging modality for evaluation of scrotal http://dx.doi.org/10.14366/usg.15075 abnormalities. It is capable of differentiating the most important etiologies of acute scrotal pain pISSN: 2288-5919 • eISSN: 2288-5943 and swelling, including epididymitis and testicular torsion, and is the imaging modality of choice Ultrasonography 2016;35:180-197 in acute scrotal trauma. In patients presenting with palpable abnormality or scrotal swelling, ultrasonography can detect, locate, and characterize both intratesticular and extratesticular masses and other abnormalities. -
Everybody's Got Body Parts – Part
Everybody’s Got Body Parts – Part Two A Lesson Plan from Rights, Respect, Responsibility: A K-12 Curriculum Fostering responsibility by respecting young people’s rights to honest sexuality education. ADVANCE PREPARATION FOR LESSON: NSES ALIGNMENT: • Go through the website and video, http://kidshealth.org/teen/ By the end of 8th grade, students sexual_health/guys/male_repro.html and https://medlineplus. will be able to: gov/ency/anatomyvideos/000121.htm, which you will use to AP.8.CC.1 – Students will be provide the answers to the activity in this lesson. able to describe the male and female sexual and reproductive • Speak with your IT department to make sure both of the above systems including body parts websites are both unblocked for your classroom and that your and their functions. computer’s sound works for the video. • Make sure your computer is queued to both the website and TARGET GRADE: Grade 7 video right before class. Lesson 2 • Go through the anonymous questions from the last class session to be prepared to answer them during class. If there TIME: 50 Minutes are no or very few questions, feel free to add in a few. LEARNING OBJECTIVES: MATERIALS NEEDED: By the end of this lesson, students will be able to: • Desktop or laptop with internet connection 1. Name at least two parts of the male internal and external • If you do not have hookup sexual and reproductive systems. [Knowledge] for sound, small speakers to connect to your computer 2. Describe the function of at least two parts of the male • LCD projector and screen internal and external sexual and reproductive systems. -
Case Report Erectile Dysfunction Due to a `Hidden' Penis After Pelvic Trauma
International Journal of Impotence Research (1999) 11, 53±55 ß 1999 Stockton Press All rights reserved 0955-9930/99 $12.00 http://www.stockton-press.co.uk/ijir Case Report Erectile dysfunction due to a `hidden' penis after pelvic trauma LAJ Simonis1, S Borovets1, MF Van Driel1*, HJ Ten Duis1 and HJA Mensink1 1Department of Urology and Traumatology, University Hospital Groningen, The Netherlands We describe a twenty-six year old patient who presented us with a dorsally retracted `hidden' penis, which was entrapped in scar tissue and prevesical fat, 20 y after a pelvic fracture with symphysiolysis. Penile `lengthening' was performed by V±Y plasty, removal of fatty tissue, dissection of the entrapped corpora cavernosa followed by ventral ®xation. Keywords: erectile dysfunction; pelvic fracture; symphysiolysis; hidden penis; penile lengthening Introduction At the physical examination we observed the man with a midline lower abdominal scar and a scar in his left groin, normal pubic hair and a 3 cm penile A twenty-six year old man was referred to our length at stretching simulating an erection. A hospital because of a very short penis, both diastasis of the pubic symphysis and normally sized functionally and cosmetically. In his view he would corpora and glans could be palpated, although they not be able to have sexual intercourse, which was were more or less buried in the diastasis and the main reason for avoiding sexual relationships. scrotum. The urethral meatus could be visualised The other reason for avoiding sexual contact was centrally on the glans. The scrotum was developed persistent urinary stress incontinence for which he normally, there was a normal testicle on the right used bandages.