anatomy - male reproductive organs

Question 1

difference between male and female urethral

Answer 1

female is much shorter (~4cm)

Question 2

male pelvis components

Answer 2

testes
epididymis
ductus deferens
seminal vesicles
prostate
urethra
urinary bladder
ureter
bulbourethral glands

Question 3

what is the fibrous covering of the testes called

Answer 3

tunica albuginea

Question 4

where are the seminal glands/vesicles located

Answer 4

posterior aspect of the bladder above the prostate

ureter is lateral to the vas deferens and the vas deferens crosses the ureter before it enters the seminal glands

Question 5

what structure maintains the temperature of the testes

Answer 5

dartos muscle - contracts in cold to pull the testes up closer to the body, relaxes in warm
functions with the cremaster muscle

Question 6

which muscle is the cremaster muscle an extension of

Answer 6

internal oblique

Question 7

what is the innervation of the cremaster muscle

Answer 7

genitofemoral nerve - genital branch

Question 8

components of the testes

Answer 8

fibrous septi
torturous seminiferous tubules
torturous epididymis behind then becomes the vas deferens

Question 9

what is between the seminiferous tubules

Answer 9

interstitial cells

Question 10

how many lobules do each testis contains

Answer 10

~250 - divided by septi

each lobule has 1-4 highly convolutes seminiferous tubules

Question 11

where are the spermatozoa produced

Answer 11

seminiferous tubules

Question 12

what is the rete testis

Answer 12

plexus of channels where seminiferous tubules converge

Question 13

what emerges from the rete testis

Answer 13

15-20 small ducts known as ductuli efferentes

Question 14

function of sertoli cells

Answer 14

support and nourish the developing spermatozoa

Question 15

what are leydig cells

Answer 15

endocrine cells

located in the interstitial spaces between tubules

Question 16

function of epididymis

Answer 16

accumulation, storage and maturation of spermatozoa

Question 17

epithelium of epipdidymis

Answer 17

pseudostratified epithelium

very long microvilli called stereocilia - push the sperm towards the vas deferens

Question 18

what is secreted by the seminal vessel

Answer 18

alkaline fluid mainly

rich in fructose, vit c, prostaglandins, fibrinogen - helps the sperm mature and survive

Question 19

epithelial lining of seminal vessel

Answer 19

pseudostratified tall columnar

Question 20

components of seminal vessel

Answer 20

secretory cells will lipid droplets in the cytoplasm
lumen of seminal vessels is highly irregular
smooth muscular wall

Question 21

location of prostate

Answer 21

surrounds the beginning of the urethra - prostatic urethra

Question 22

tissue type in prostate

Answer 22

fibro-muscular glandular tissue

Question 23

what are corpora amylacea

Answer 23

thickened prostatic secretions may accumulate in some glands, increase in number with age
can become calcifies

Question 24

prostatic fluid components

Answer 24

makes up 1/2 of the seminal fluid

thin liquid rich in citric acid and proteolytic enzymes

Question 25

composition of vas deferens

Answer 25

muscular tube
3 layers - very thick wall, inner and outer longitudinal, intermediate circular
stellate lumen

Question 26

epithelium of vas deferens

Answer 26

pseudostratified columnar

Question 27

function of vas deferens

Answer 27

transport secretions from the testes

Question 28

composition of the rete testis

Answer 28

highly vascular collagenous connective tissue containing myeloid cells
myeloid cell contraction - mix and move
single layer of cuboidal epithelial cells with microvilli and single cillium