1. Male Reproduction M.R.S. ANIMATION Testosterone: Male sex hormone
~Testosterone causes the production of sperm.
Sperm: Male reproduction cell
~Two biological functions of the male reproduction system:
1.Production of sperm
2. Transfer of sperm to the female body during intercourse

2. Ejaculation: Fluid from prostate, fluid from seminal vesicles and million sperm all combine to make semen.
~During ejaculation, semen is propelled from penis.
Semen: a thick fluid containing sperm and other secretions from male reproduction organs.
Fertilization: Is the union of a reproduction cell from a male and one from a female.
Circumcision: Surgical removal of the foreskin of the penis.
Foreskin-penis is covered w/ a fold of skin at
birth.

3. External Organs
 Penis: Tube-like organ attached to the trunk of the body just above testes.
~Functions: Sexual reproduction, sexual pleasure and elimination of waste.
Testes: Oval organs, lie in the scrotum & either end by the spermatic cord.
- Functions: Making testosterone & generating sperm.
Scrotum: Protects sperm by keeping the testes 3-4 degrees below normal body temperature.
~If the temp. rises, the muscles of the scrotum relax, lowering the testes.
~If the temp. drops, muscles contract, pulling testes closer to the body.

4. ~ Thick muscle walls of the Vas Deferens propel the sperm forward.
Internal Organs
Epididymis: Stores newly produced sperm for about 64 days until fully matured.
Vas Deferens :A pair of connecting tubes, each 18 inches long that lead up into the males’ body toward other internal organs.
~ Thick muscle walls of the Vas Deferens propel the sperm forward.
Seminal Vesicles: Attached near the base of the bladder to the Vas Deferens.
~The fluid contains nutrients and mixes w/ sperm.
Bladder: Muscular sac in the pelvis, just above & behind public bone. Stores urine allowing urination to be infrequent & voluntary.

5. Prostate Gland: Small gland that surrounds Urethra.
Cowpers Gland: Two pea –sized glands that open into Urethra, secrete a clear sticky fluid to cleanse the urethra of urine and left over sperm.
Urethra: Tube-like organ that travels through the penis, carries sperm and urine.
~Semen and urine do not pass through the body at same time.
~A muscle near the bladder contracts, preventing urine from entering urethra.
MALE ANATOMY

7. Male Diagram

8. Prostate Cancer: Uncontrolled growth of cells.
Male Concerns
 Hernia: Part of the body pushes through the muscle wall normally keeping it in.
(Example: Inguinal Hernia- part of the intestine pushes through into scrotum. *Surgery is need to correct.)
Sterility: Sperm is weak, malformed, sparse or nonexistent. Fertilization does not occur.
~Causes- Exposure to chemicals, smoking, STD’s, malfunction of one of the internal organs.
Prostate Cancer: Uncontrolled growth of cells.
~Treatments- Removal of prostate or radiation therapy and hormonal therapy.
Testicular Cancer: Signs- Enlargement of testicles, lump or fluid collection, dull ache in the lower abdominal or groin area.
~Frequently males

9. Preventing problems
Prevent STD’s
Prevent jock itch
Prevent Trauma (wear a sports cup)
Prevent hernias (caused by straining to push or lift something, heavy coughing or sneezing)
Prevent infertility

10. DO NOW What are the three (3) accessory glands in the internal male
anatomy and what fluids do each secrete?
What is the purpose of the alkaline fluid with regards to sperm?
Name two of the cells located within the testes that are responsible for production of testosterone and spermogenesis.