male repro system

Question 1

what is the main function of the make reproductive system

Answer 1

produce, store, and deliver sperm

Question 2

what is the male external genetalia

Answer 2

scrotum

Question 3

what is the scrotum

Answer 3

2 lobed, multilayered sac enclosing testes

Question 4

what are the 3 functions of the scrotum

Answer 4

protection
support of testes
thermoregulation

Question 5

what are the 4 general layers to the scrotum

Answer 5

skin
tunica dartos
scrotal fascia
parietal vaginal tunic (deepest layer)

Question 6

tunica dartos functions

Answer 6

smooth muscle
sustained contractions
changes scrotal surface area

Question 7

increased surface area

Answer 7

decreased temp (cool)

Question 8

decreased surface area

Answer 8

increase temp (hot)

Question 9

what is the male gonad

Answer 9

testis
- paired organ

Question 10

what are the four functions of the testis

Answer 10

production of male gametes
production of hormones
production of proteins
production of seminal fluid

Question 11

male gametes

Answer 11

sperm

Question 12

what is considered the testicular capsule

Answer 12

testis

Question 13

what is the most superficial layer of testis

Answer 13

visceral vaginal tunic

Question 14

what are the two sections of the testis

Answer 14

parenchyma
mediastinum

Question 15

parenchyma

Answer 15

where you find all the reproductive structures
- seminiferous tubules
- interstitial cells of Leydig

Question 16

seminiferous tubules

Answer 16

• sperm, hormones, protein, fluid production
• Sertoli cells

Question 17

function of interstitial cells of Leydig

Answer 17

hormone production

Question 18

Leydig

Answer 18

these cells male testosterone

Question 19

mediastinum

Answer 19

• center portion of testes
• sheet of connective tissues (support network)
• tunic albuginea sends finger like projections deep into testes

Question 20

parts of the excurrent duct system

Answer 20

epididymis
ductus (vas) deferens
ampulla
urethra

Question 21

what is the epididymis surrounded by

Answer 21

smooth muscle

Question 22

functions of the epididymis

Answer 22

• store spermatozoa until ejaculation
• mature spermatozoa

Question 23

caput of epididymis

Answer 23

• head
• no motility and fertility

Question 24

corpus of epididymis

Answer 24

• body
• little motility and fertility

Question 25

cauda of epididymis

Answer 25

-tail - motile - fertile - stored until sexual stimulation and ejaculation

Question 26

ductus (vas) deferens

Answer 26

- begins @ end of cauda (1 for each testis) - surrounded by thick smooth muscle

Question 27

what connects body to scrotum

Answer 27

spermatic cord

Question 28

functions of spermatic cord

Answer 28

provides passageway protects testes (cremaster muscle) thermoregulation (cremaster muscle, PP)

Question 29

tunic dartos movement

Answer 29

lateral

Question 30

cremaster movement

Answer 30

vertical

Question 31

veins of pampiniform

Answer 31

bring stuff to testes - dissipate heat of the blood

Question 32

testicular artery

Answer 32

brings stuff away from testes

Question 33

what are the 5 mechanisms to regulate testicular temp

Answer 33

sweating panting tunica dartos cremaster muscle pampiniform plexus

Question 34

ampulla

Answer 34

where each of the ductus deferens fuse - enlarged

Question 35

urethra

Answer 35

common duct that caries semen and urine out of body thru penis

Question 36

urethra carries semen from where

Answer 36

ampulla

Question 37

urethra carries urine from where

Answer 37

ureter

Question 38

what do accessory sex glands need to be productive

Answer 38

testosterone

Question 39

function of ASG

Answer 39

produce seminal fluid - vehicle for sperm delivery - maintains sperm viability

Question 40

what are the parts of the ASG

Answer 40

vesicular gland (seminal vesicles) prostate gland bulbourethral gland

Question 41

vesicular gland

Answer 41

- paired - secrete majority of seminal fluid - smooth muscle--> content release during ejaculation - site of fructose synthesis and secretion - causes coagulation after ejaculation (semenogelin)

Question 42

alkaline fluid

Answer 42

- base - high pH - odor

Question 43

function of prostate gland

Answer 43

- secretes alkaline fluid - surrounds urethra - causes content release during ejaculation

Question 44

where do the contents drain to from the prostate gland

Answer 44

into urethra

Question 45

corpus

Answer 45

visible on outside

Question 46

disseminate

Answer 46

tissue surrounding the urethra

Question 47

bulbourethral glands

Answer 47

- covered by smooth muscle - seminal fluid components

Question 48

gel plug what species

Answer 48

rodents and boars

Question 49

what are the three parts of the penis

Answer 49

base shaft glans

Question 50

what are the two types of penis

Answer 50

fibroelastic Musculovascular

Question 51

fibroelastic

Answer 51

erection causey sigmoid flexure and retractor penis muscles

Question 52

what animals have fibroelastic

Answer 52

bull boar ram

Question 53

musculovascular

Answer 53

erection caused primarily through erectile tissue

Question 54

what animals are musclovascular

Answer 54

stallion dog tom

Question 55

retractor penis muscle

Answer 55

- pair of smooth muscle - originates from vertebrate - holds penis inside sheath and extends penis outside of sheath

Question 56

what happens if the retractor penis muscle is contracted

Answer 56

penis is not erect

Question 57

what do birds have instead of a penis

Answer 57

phallus - caused by accumulation of lymph like fluid