Male Reporductive System

Question 1

male reproductive system

Answer 1

comprised of the testes, a ductal system and accessory sex glands

Question 2

testes

Answer 2

two oval shaped organs that lie outside the abdominal cavity within the scrotum; produce sperm and secrete hormones

Question 3

scrotum

Answer 3

sac like structure suspended outside the body inferior to the pubic segments

Question 4

gamete

Answer 4

male of female reproductive cell

Question 5

sperm

Answer 5

mature male reproductive cell

Question 6

spermatogenesis

Answer 6

process by which sperm is produced
usually takes about 65 to 75 days for completion
once completion sperm cells will have 23 chromosomes instead of 46

Question 7

seminiferous tubules

Answer 7

tightly coiled ducts located within the testes where sperm are produces

Question 8

testosterone

Answer 8

produce testosterone
before birth, it stimulates development of external genital
brings about development and enlargement of the male sex organs and development of masculine secondary sex characteristics
contributes to male sex drive and behavior

Question 9

ducts

Answer 9

responsible for storing and transporting sperm

epididymis, ductus deferens, ejaculatory ducts, urethra

Question 10

epididymis

Answer 10

comma shaped organ that lies along the posterior border of each testis
after sperm is produces within the seminiferous tubules it is transported
sperm is mature in 10 to 14 days and can be stored for several months
upon maturity the sperm have increases motility and the ability to fertilize and ovum
propels the sperm by peristalsis in the ductus deferenes during sexual arousal

Question 11

ductal deferens

Answer 11

stores sperm for several months
conveys sperm toward the urethra by peristaltic contractions
the dilated terminal end is known as the ampulla

Question 12

ejaculatory duct

Answer 12

formed by the union of the seminal vesicles and the ampulla of the ductus deferens
ejects sperms and secretions from the seminal vesicles into the urethra just before ejaculation

Question 13

urethra

Answer 13

shared by the reproductive and urinary systems because it serves as a passageway for semen and urine to exit the body
divided into three portions: prostate, membranous urethra, penile urethra

Question 14

prostate urethra

Answer 14

proximate portion - passes through the prostate gland

Question 15

membranous urethra

Answer 15

middle portion

Question 16

penile urethra

Answer 16

distal portion - travels the length of the external penis

Question 17

accessory glands

Answer 17

responsible for secreting most of the liquid portion of semen - semen and seminal vesicles

Question 18

semen

Answer 18

mixture of sperm and secretions of seminiferous tubules, seminal vesicles, prostate gland and bulourethral glands

Question 19

seminal vesicles

Answer 19

irregularly shaped sacs located posterior to the base of the bladder