1. Chapter 31

2. Keep it anonymous and legitimate!

3. Regulation of correct hormonal level must be maintained.

4. Produced where?

5.  What is the primary purpose of this system?  Where is sperm produced?  What is the main hormone?  When can a male begin production of sperm and father a child?  What is the prostate? How is it checked? Why?  What two things passes through the urethra?  How can a male become sterile or unable ot father a child?  What is semen? Alkaline or acidic

7.  Gametes – sex cells  Accessory organs  Gonads - testes  Genital ducts – epidydimis  Accessory glands – cowper’s/bulbourethral  Supporting structures – scrotum  Perineum – between thighs – pg 897 (anterior pubis to posterior coccyx)

9. Male Reproductive System

10.  Located in scrotum – one testicle in each of two scrotal pouches  Functions – 1. Spermatogenesis by seminiferous tubules 2. Secretion of testosterone by interstitial cells

11.  Head – chromosomal data  Neck  Midpiece  Tail

12.  Epididymis – coiled 16 ft. tube on top of testicle – duct for seminal fluid and production – maturation of sperm (motility)  Vas deferens – tube extending from epididymis through abdomen and through posterior surface of bladder – excretory duct for seminal fluid – connects epididymis with ejaculatory duct  Ejaculatory duct – passes through prostate and terminates at the urethra  Urethra – passageway for semen and urine

13.  Seminal vesicles – 5-7 cm long on posterior surface of bladder – secretes nutrient rich part of seminal fluid (60%)  Prostate – doughnut-like encircling the urethra below bladder – adds slightly acidic, watery/opaque secretion to seminal fluid(30%)  Bulbourethral – pea-shaped gland attached to urethra below prostate – secretes alkaline secretion (5%)

14.  Scrotum contains testes, epididymis, lower portion of spermatic cord  Muscles that support/elevate the scrotum – dartos and cremaster  Penis – three cylindrical masses of erectile tissue (one contains the urethra) – function is for urinary and reproduction – erection occurs due to erectile tissue filling with blood due to stimulation  Spermatic cords (internal) – located in inguinal crease – contains seminal duct, vessels, lymphatics and nerves

15.  Consists of secretions from: testes, epididymis, seminal vesicles, prostate, cowper’s gland  Each mm contains millions of sperm  Passes from testes – epididymis- vas deferens-efaculatory duct- urethra

17.  Reproduction begins at puberty  Organ development in-utero  Reproduction ability through old age  Late adulthood will decline testosterone production which will effect appetite, muscle structure, fertility, etc.