male anatomy test

Question 1

what are the main functions for males?

Answer 1

• To produce reproductive cell (produce, maintain & transport sperm) & protection fluid (semen).
• To produce male hormone, testosterone, which is responsible for secondary sex characteristics such as Facial hair, pubic hair, underarm hair, deep voice, muscle dev.

Question 2

what do the testes do?

Answer 2

Testes manufacture sperm & secrete testosterone.

Question 3

where is sperm produced?

Answer 3

Sperm is produced in the Seminiferous Tubules.

Question 4

where is testosterone produced?

Answer 4

Testosterone is produced in the Interstitial Cells.

Question 5

what is the scrotum?

Answer 5

• The sac that encloses testicles & epididymis outside the body.
• Helps protect the testicles.
• Regulates temperature to help keep sperm alive (3-4 deg below body temp).

Question 6

where is sperm stored and matured in?

Answer 6

Sperm stored & matures in the Epididymis. It takes 96 days until it’s mobile.

Question 7

what does the vas deferens do with the sperm?

Answer 7

The vas deferens carries sperm from the epididymis to the urethra.

*A vasectomy, deals with the snipping of the vas deferens.

Question 8

when do males start to produce sperm?

Answer 8

Males begin producing sperm at puberty.

Question 9

sperm facts

Answer 9

• 200-300 million sperm are produced daily.
• Sperm can live 6-8 hours in the vagina.
• Sperm can live 3-5 days in the uterus
• Takes 1-1 ½ hours for sperm to reach fallopian tubes.

Question 10

what are the 3 glands that make up ejaculatory fluid

Answer 10

1) Seminal Vesicle
2) Prostate Gland
3) Bulbourethral Glands or Cowper’s Gland

Question 11

what does the seminal vesicle do?

Answer 11

2 glands that secrete fluids that provides nourishment to the sperm.

Question 12

what does the prostate gland do?

Answer 12

secretes a fluid to mix with sperm. Neutralizes the acidity of the vagina so sperm can live (protects sperm).

Question 13

what does the Bulbourethral Glands or Cowper’s Gland do?

Answer 13

2 pea size glands that open into the urethra & secrete a clear, sticky fluid.

Lubricates the urethra to allow easy passage of semen (contains sperm).

Question 14

when do erections happen?

Answer 14

Erections happen when veins & spongy tissue in the penis fill with blood.

Question 15

what causes erections?

Answer 15

• Sexual excitement/stimulation
• Tension in the pelvic muscles
• Irritation of the penis (tight pants)
• Full bladder

Question 16

when does ejaculation happen?

Answer 16

Ejaculation occurs when muscles in an erect penis contract & force semen out of the penis.

Question 17

what does the urethra do?

Answer 17

• Tube that carries semen or urine out of the body.
• A sphincter closes the opening to the bladder when semen leaves the body so urine & semen never pass through the urethra at the same time.

Question 18

how much sperm makes up the ejaculatory fluid (%)?

Answer 18

Sperm makes up less than 2% of the ejaculatory fluid.

Question 19

how long does it take for a male to make the same amount of sperm contained in the average ejaculate?

Answer 19

It takes the average male 24 hours to make the same amount of sperm contained in the average ejaculate.

Question 20

what are 3 ways that semen is forced out of the penis?

Answer 20

• Sexual Intercourse
• Nocturnal emissions occur when a male becomes secually stimulated & ejaculates in his sleep
• Sexual self stimulation which often leads to climax is masturbation

Question 21

what is foreskin?

Answer 21

The flap of skin that covers the end of the penis. It may be removed by surgery called circumcision.