Male Reproductive System II

Question 1

where are the tubuli recti?

Answer 1

mediastinum testis

Question 2

what do the tubule recti convey?

Answer 2

spermatozoa form the seminiferous tubules to the rete testis

Question 3

what is the lumen of the tubule recti lined by?

Answer 3

sertoli cells – which later changes to a simple cuboidal epithelium (Mv + single flagella)

Question 4

where is the rete testis located?

Answer 4

mediastinum testis

Question 5

what is the rate testis and what does the rete testis do?

Answer 5

• labyrinth plexus of anastomosing channels

- connect the tubuli recti with the ductuli efferentes

Question 6

what type of epithelium lines the rete testis?

Answer 6

simple cuboidal epithelium (+ single flagellum)

Question 7

what is the ductuli efferentes?

Answer 7

10-20 tubules leading from the rete testis to the ductus epididymis

Question 8

what lines the ductuli efferentes?

Answer 8

pseudoctratified columnar epithelium - alternating clusters of non-ciliated cuboidal and ciliated columnar

Question 9

what are the characteristics of the cuboidal cells of the ductuli efferentes?

Answer 9

Mv
lysosomal granules
function to reabsorb fluid from the semen

Question 10

what is the function of the ciliated columnar cells of the ductuli efferentes?

Answer 10

transporting nonmotile spermatozoa toward the epididymis

Question 11

where is the circular smooth muscle found in the ductuli efferentes found?

Answer 11

under the basal lamina surrounding the ductuli efferentes epithelium

Question 12

what are the excretory genital ducts?

Answer 12

ductus epididymis
ductus deferens (vas deferens)

Question 13

what are the two major parts of the ductus deferens?

Answer 13

ampulla

ejaculatory duct

Question 14

what are the intratesticular genital ducts?

Answer 14

tubuli recti
rete testis
ductuli efferentes

Question 15

what type of epithelium lines the lumen of the ductus epididymis? What type of cells make up the epithelium?

Answer 15

pseudostratified columnar epithelium

basal and principle cells

Question 16

what surrounds the ductus epididymis?

Answer 16

CT containing blood vessels

• there is a basal lamina

Question 17

what are the subdivisions of the ductus epididymis?

Answer 17

head, body, tail

Question 18

What is the function of basal cells?

Answer 18

precursor to (columnar) principle cells

Question 19

what do principle cells have on their luminal surface?

Answer 19

stereocilia

• also have SERIOUS organelles

Question 20

what do principle cells secrete?

Answer 20

glycerophosphocholine

Question 21

what is glycerophosphocholine?

Answer 21

substance that aids in the maturation of sperm cells - surface associated decapitation factor inhibits capacitation

Question 22

what is capacitiation?

Answer 22

process when sperm is able to fertilize the ovum - although it beings in the epididymis, it isn’t complete until the sperm reaches the oviduct

Question 23

what type of epithelium make up the epithelium of the ductus deferens?

Answer 23

pseudostratified epithelium + stereocilia

Question 24

what are the smooth muscle layers of the ductus deferens?

Answer 24

inner longitudinal
middle circular
outer longitudinal

Question 25

what is the ampulla?

Answer 25

dilated portion of ductus deferens leads directly to prostate gland

Question 26

what does the distal end of the ampulla of the ductus deferens receive?

Answer 26

seminal vesicle = forming the ejaculatory duct that enters the prostate gland

Question 27

what does the ejaculatory duct lack?

Answer 27

muscular wall

Question 28

what does the ejaculatory duct terminate to?

Answer 28

slit on the colliculus seminal is - in prostatic urethra

Question 29

what are the accessory genital glands and what is their primary function?

Answer 29

seminal vesicles prostate gland bulbourethral glands -produce most of the seminal fluid

Question 30

where do the ducts of the seminal vesicle join just before entering the prostate gland?

Answer 30

ductus deferens

Question 31

what type of epithelium lines the seminal vesicles?

Answer 31

pseudostratified columnar epithelium - with low columnar and cuboidal basal cells has a LP + adventitia

Question 32

what is the height of the cuboidal basal cells of the seminal vesicles dependent on?

Answer 32

testosterone

Question 33

what do the columnar cells of the seminal vesicles contain?

Answer 33

yellow lipochrome pigment granules and secretory granules

Question 34

what is the secretory product of the seminal vesicles composed of?

Answer 34

yellow, viscous fluid rich in fructose + other.. - constitutes 70% of the ejaculate

Question 35

what makes up the prostate gland?

Answer 35

30-50 branched tubuloalveolar glands that empty their contents into the prostatic urethra - via excretory ducts

Question 36

what are the layers of the prostate gland?

Answer 36

central, transitional, peripheral - all around urethra

Question 37

what divides the prostate into lobes?

Answer 37

stroma from the capsule

Question 38

what type of epithelium lines the prostate glands?

Answer 38

simple or pseudostratified columnar epithelium

Question 39

what is another name for prostatic concretions?

Answer 39

corpora amylacea

Question 40

what are prostatic concretions composed of and what are they?

Answer 40

composed of glycoprotein - may become calcified and their numbers increase with age

Question 41

what influences the secretion from the prostate gland?

Answer 41

dihydrotestosterone

Question 42

what is the secretion of prostate gland composed of?

Answer 42

whitish, thin fluid proteolytic enzymes, citric acid, acid phosphatase and lipids

Question 43

what does PSA stand for and what is it?

Answer 43

prostate - specific - antigen induces elevated acid phosphatase blood levels = prostatic carcinoma

Question 44

what are the bulbourethral glands (Cowper's glands) located?

Answer 44

next to membraneous urethra

Question 45

what do the bulbourethral glands (Cowper's glands) do?

Answer 45

empty their clear secretion into the lumen to lubricate it

Question 46

what type of epithelium lines the bulbourethra glands (Cowper's glands)?

Answer 46

simple cuboidal or columnar epitheium

Question 47

what does the hypodermis of the penis contain?

Answer 47

``` smooth muscle (prominent) no adipose tissue! ```

Question 48

what happens to the vascular spaces during erection?

Answer 48

engorged = turgid/swollen

Question 49

what is the singular erectile body that surrounds the spongy urethra?

Answer 49

corpus spongiosum

Question 50

what is the difference between copora cavernosa and corpus spingiosum?

Answer 50

corpus spongiosum trabeculae has more elastic fibers and only a few smooth muscles vascular spaces are uniform - in corpus cavernosum - the vascular spaces decides in size towards periphery

Question 51

what is the gland of Littre?

Answer 51

mucus secreting gland present throughout the length of the penile urethra

Question 52

the glans penis is the terminal end of what?

Answer 52

corpus spingiosum