male reproductive system

Question 1

seminal vesicle

Answer 1

-produces thick, yellowish (60% of semen) containing fructose and vitamin C to nourish sperm and prostaglandins to activate

Question 2

prostate gland

Answer 2

-secretes milky fluid into the urethra to help to activate sperm

Question 3

Bulbourethral glands

Answer 3

-produces mucus to cleanse the urethra of acidic urine prior to ejaculation
-mucus serves a lubricant during sexual intercourse
-all secretions combine with sperm to form semen
-alkalinity of semen helps neutralise the acidic environment of vagina and inhibits bacteria

Question 4

testes

Answer 4

-function as sperm-forming factories in the seminiferous tubules
-interstitial cells in the seminiferous tubules produce testosterone

Question 5

epididymis

Answer 5

-temporary storage and maturation site for immature sperm

Question 6

dutus (vas) deferens

Answer 6

-moves sperm by peristalsis into the urethra during ejaculation

Question 7

scrotum

Answer 7

-divided sac of skin outside the abdomen that maintains testes at 3℃ lower than normal body temperature to produce viable sperm

Question 8

penis

Answer 8

-male organ of copulation that delivers sperm into the female reproductive tract
-three areas of spongy erectile tissue around the urethra
-fills with blood during sexual excitement

Question 9

cicumcision

Answer 9

-the foreskin (prepuce) is surgically removed from the tip of the penis

Question 10

medical benefits of circumcision

Answer 10

-lower risk of urinary tract infection (UTI)
-slightly lower risk of getting sexually transmitted diseases (STDs), including HIV
-lower risk of cancer of penis
-prevention of foreskin infections
-prevention of phimosis- hard to pull the foreskin

Question 11

circumcision risks

Answer 11

-bleeding
-infection
-injury to the penis or urethra
-tip of penis may become irritated and cause the opening to become too small-> causes urination problems
-may become less sensitive

Question 12

spermatogenesis

Answer 12

-sperm production
-begins at puberty and continues throughout life

Question 13

spermatogenesis process

Answer 13

1. spermatogonia start by dividing rapidly
2. FSH is secreted in increasing amounts to stimulate sperm production
3. spermatids with haploid number of chromosomes

Question 14

testosterone production

Answer 14

-causes secondary sex characteristics
-stimulates reproductive organ development