1. Male Reproductive System

2. Function of the Male Reproductive System
To produce sperm cells (male reproductive cells)
Begin producing sperm around yrs old
Puberty - development and maturation of the reproductive system
Hair develops (pubic region, underarm, arms, legs, chest, face) widening of the shoulders and chest, deepening of the voice, skin oiler, acne develops, increased perspiration, body odor, growth spurt, Adam’s Apple protrudes, testicles drop

3. External 1. Testes or Testicles – male sex glands
a. Functions (1) to manufacture the male sex hormone testosterone (2) Produce reproductive cells  sperm  which is produced in the seminiferous tubules
Can produce (roughly) up to 100 million sperm in one day
This number slightly deceases with age

4. Testicle or Teste

5. Scrotum – the sac that hangs outside of the body that holds the testes
a. Function –(1) regulates body temperature and (2) protection of the testes
As body temperature increases – the scrotum will hang lower
As body temperature decreases – the scrotum will contract towards the body
Will draw up close to the body during arousal

6. Scrotum

7. a. Function - where sperm cells are stored for 64 days until mature
Epididymis
a. Function - where sperm cells are stored for 64 days until mature
So what does this mean? The sperm cells that are in your semen “tonight” were produced 2 months ago
b. Location – top to the back of each testicle
Coiled structure – when uncoiled it will stretch to 20 feet in length

8. Epididymis

9. Penis – the male sexual reproductive organ
a. Functions (1) reproduction (2) pleasure (3) elimination of wastes; urine and semen
b. 2 States
1. Erect – hard state
Also known as an errection
Caused by an increases blood flow to the penis
The spongy tissues in the penis fill with blood making it longer, larger, and harder
Often followed by an ejaculation – release of semen from the penis
1 ejaculation = about 1 teaspoon of fluid
million sperm cells in 1 ejaculation
Semen can be released during the soft state  pre ejaculation
2. Flaccid – soft state
Also known as the resting state

11. Glans – tip or head of the penis
Most sensitive **
Shaft – the base or length of the penis
Foreskin – excess skin at the glans of the penis
Shaft

12. Internal
Vas Deferens – long tube that connects the epididymis with the urethra
Function – passageway and connecter
a. Lined with cilia to move sperm along
18 inches long if extended

14. Seminal Vesicles – fluid filled pouches
Location – found on both sides of the prostate
Function – (1) fluid helps make the sperm mobile and (2) provides nourishment to sperm cells
Sugary fructose substance; source of energy to make the cells
* is a component of semen

16. Prostate Gland
Location – lies below the bladder and surrounds the urethra
About the size of a chestnut
Function – secretes a milky, alkaline fluid that mixes with sperm
* is a component of semen

18. Cowper’s Gland Location – directly below the prostate
About pea sized
Function – secretes a clear, sticky fluid to allow a safe passageway for sperm
* is a component of semen

20. Urethra – tube that travels through the center of the penis that is a passageway for semen and urine (not at the same time)
Urinary Bladder – holding area for urine

22. So what makes up semen? Fluids from: 1. Seminal Vesicles
2. Prostate Gland
3. Cowper’s Gland
And the most important component:
4. Sperm Cells
Contains 23 chromosomes

23. Schedule of Events to Come
Today – complications and concerns
Vocabulary and reproductive paragraph
Friday – review and classwork assignments
Monday – reproductive BINGO
All male work due
Tuesday – reproductive Hot Potato
Wednesday – Male and Female Reproductive Systems Test!
Know locations on diagrams and functions

24. Complications & Occurrences
Sterility – the inability to reproduce
Sperm is weak, malformed, sparse, non-existent, unable to join with an ovum
Caused by: a birth defect, exposure to extreme temperatures, exposure to chemicals, exposure to high amounts of radiation, smoking, STIs, vasectomy, and injury
Vasectomy – permanent procedure of sterilization, sealing the vas deferens so sperm cells cannot join with the fluids to make semen. Incisions made into testicles
In office procedure
Cost effective

26. “Blue Balls” – the term referring to testicular aching that may occur when the blood that fills the vessels within the penis during sexual arousal, is not dissipated by an orgasm/ejaculation
Testicular Cancer
Signs – swelling, small hard lumps, possible pain in the testicle region
Affects males usually around the ages of yrs
Unknown causes – linked to exposure to chemicals, HIV +, genetics
Responsible for 12% of Cancer deaths
White males 5x more likely to get then any other race

27. Prostate Cancer
Signs – pain in the lower abdomen and frequent urination
Detection – Rectal exam
Affects males 50+ yrs
No known cause – linked to hereditary, male genetic flaws, diet high in animal fat
Targets African American Men
2nd leading cause of death of men

28. Nocturnal Emission – aka “wet dream”
An ejaculation that occurs during sleep
Uncontrollable, unpreventable, subconscious