Lab 7 - Male Reproduction

Question 1

what does the bulbourethral gland do

Answer 1

produced lubrication for the tip go the penis during mating and produced gel fraction (boar)

Question 2

what does the disseminate prostate do

Answer 2

produce prostate fluid 20-30% of semen, alkaline

Question 3

what happens to the sigmoid flexure of penis

Answer 3

it is straightened out when the penis is extended for mating

Question 4

what is involved with sperm maturation

Answer 4

head of epididymis
body of epididymis

Question 5

Where is sperm stored

Answer 5

tail of epididymis to acquire motility and fertility

Question 6

what is the function of the testis

Answer 6

production of sperm and sex steroids

Question 7

what is the function of ductus deferens

Answer 7

sperm transport into pre-ejaculatory ducts

Question 8

where is urine stored

Answer 8

bladder

Question 9

what does the ureter do

Answer 9

drains urine and sperm

Question 10

what is the other place where semen is stored

Answer 10

ampulla

Question 11

what is the other purpose of the ampulla

Answer 11

to secrete fluid - fructose, ergothioneine

Question 12

what is the purpose of the vesicular gland

Answer 12

produce seminal plasma - 70% of semen volume

Question 13

how much semen does the disseminate prostate produce

Answer 13

20-30%
alkaline

Question 14

how much semen does the vesicular gland produce

Answer 14

70%
clear
slightly alkaline

Question 15

what is the seminiferous tubules responsible for

Answer 15

sperm production and maintenance

Question 16

what is the tunica vaginalis

Answer 16

a peritoneal sac

Question 17

what does the tunica vaginalis do

Answer 17

protects and lubricates testes

Question 18

what does the cavity of tunica vaginalis allow

Answer 18

movement

Question 19

what is the tunica albuginea

Answer 19

protective layer that maintains blood flow, pressure and transport

Question 20

what do Vas Deferens/ductus deferens do

Answer 20

carries sperm from epididymis to ejaculatory ducts

Question 21

what are ductus efferentes responsible for

Answer 21

sperm transport and fluid reabsorption

Question 22

what are the rete testis responsible for

Answer 22

sperm transport to epididymis via smooth muscle contractions

Question 23

what occurs in the body of Epi

Answer 23

maturation of sperm

Question 24

what occurs in the tail of Epididymis

Answer 24

storage of mature sperm

Question 25

what is the pampiniform plexus key to

Answer 25

maintain temperature of arterial blood entering the testes below core (heat exchange system)

Question 26

what do Sertoli cells do

Answer 26

produce inhibin B and APB
nourishment

Question 27

where are sertoli cells

Answer 27

inside seminiferous tubules

Question 28

what do leydig cells produce

Answer 28

testosterone

Question 29

where are leydig cells located

Answer 29

outside of seminiferous tubules

Question 30

what part of nervous system controls erection and ejaculation

Answer 30

acetylcholine
norepinephrine

Question 31

what part of endocrine system controls erection and ejaculation

Answer 31

oxytocin

Question 32

what are the 5 components of a reflex arc

Answer 32

receptor
sensory neuron
integration center
motor neuron
effector

Question 33

what is the receptor

Answer 33

site of stimulus action

Question 34

what does the sensory neuron do

Answer 34

transmits afferent impulses to CNS

Question 35

what are the 2 types of integration centers

Answer 35

monosynaptic
polysynaptic

Question 36

where are integration centres located

Answer 36

monosynaptic or polysynaptic regions within CNS

Question 37

what do motor neurons do

Answer 37

conduct efferent impulses from integration center to effector organ

Question 38

what is the effector

Answer 38

muscle fiber/gland cell that responds to efferent impulses by contracting or secreting