Part I: The Benefits of Sexual Reproduction

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Male Reproductive System Webquest
LABEL the male and female reproductive systems:
http://training.seer.cancer.gov/anatomy/reproductive/male/
Trace the pathway of sperm from the testes to the body exterior.
Part II: Spermatogenesis
A. Go to the following webpage:
http://wps.aw.com/bc_martini_eap_4/40/10469/2680298.cw/content/index.html
B. Click on the first link: spermatogenesis and watch the entire movie.
1. Where does spermatogenesis occur?
2. During puberty what hormone stimulates cells to begin meiosis?
3. How many sperm cells are created from each meiotic division? (2 points total)
Name:______________________
Date:__________________________1
Male Reproductive System Webquest
C. Label the picture of a sperm to the right.
http://www.drmalpani.com/book/chapter4b.html
SEMEN
D. Answer the following questions
http://www.news-medical.net/health/Semen-What-is-Semen.aspx
1. Describe the composition of semen. What gives it a white appearance?
2. What role does the bulbourethral gland have in semen?
3. What does the prostate gland secrete?
4. How much semen is ejaculated at one time?
5. What are the two phases of ejaculation? Briefly describe each.
Name:______________________
Date:__________________________2
Male Reproductive System Webquest
ERECTIONS
E. Answer the following questions.
https://www.cornellurology.com/clinical-conditions/erectile-dysfunction/how-erections-work/
1. What role does blood, hormones, and nerves have in triggering an erection?
2. What could cause difficulty in triggering or maintaining an erection?
VASECTOMIES
F. Answer the following questions:
http://www.plannedparenthood.org/health-topics/birth-control/vasectomy-4249.htm
1. What is a vasectomy?
2. What happens to the sperm after a vasectomy?
3. How long after a vasectomy is it effective?
4. How often do the ductus deferens grow back together?
G. Cryptorchidism
https://www.cornellurology.com/clinical-conditions/pediatric-urology/cryptorchidism/
1. What is cryptorchidism? What does its name mean?
Name:______________________
Date:__________________________3
Male Reproductive System Webquest
2. What are the 5 different categories of an undescended testicle? Briefly describe each.
3. What are two reasons why undescended testicles should be treated?
4. What are two treatments for cryptorchidism?
H. Circumcision
http://www.healthychildren.org/English/ages-stages/prenatal/decisions-tomake/pages/Circumcision.aspx
1. What is circumcision?
2. What are two benefits of circumcision?
3. Why might a parent not have a circumcision done to their son?
Name:______________________
Date:__________________________4
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