Lecture 04/Lab 2: Male Repro Histology (Baekey) Flashcards Preview

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Flashcards in Lecture 04/Lab 2: Male Repro Histology (Baekey) Deck (40):
1

fx of septa in testis

divides testis into lobules; allows blood vessels to travel in the interstitial tissue

2

seminiferous tubules house

developing germ cells

3

leydig cells secrete what hormone?

testosterone

4

interstitial/adventitial tissue contains 2 things

leydig cells, blood vessels

5

what tissue surrounds rete testis?

mediastinum

6

rete testis

network of randomly anastomized tubules in the mediastinum.

7

epithelium lining rete testis

simple cuboidal epithelium

8

Are spermatogonia and primary spermatocyte diploid or haploid?

diploid

9

Are spermatids diploid or haploid?

haploid

10

Sperm developmental stages (4)

1) spermatogonium
2) spermatocyte
3) early spermatid
4) late spermatid

11

fx of sertoli cells

Provide proper microenvironment for developing sperm cells.
-Synthesize Mullerian inhibitory Factory (MIF)
-Form blood-testis barrier through tight junctions

12

What structure is b/w seminiferous tubules and rete testis?

Straight tubules

13

efferent ductules fx

connect rete tesis with epididymis

14

Ductus epididymus fx

Mature/store sperm, absorb fluid and androgen binding protein

15

Ductus deferens fx

transport sperm from the epididymis in anticipation of ejaculation

16

epithelium of ductus epididymus

pseudostratified columnar epithelium

17

defining characteristic of vas deferens histologically

thick tunica muscularis for transporting sperm

18

Ampullary gland fx

Contributes to seminal fluid. Secretes glycogen and lipid. Located where ductus deferens enters the urethra

19

epithelium of ampullary glands

columnar epithelium

20

main fx of accessory glands

produce seminal fluid

21

3 accessory glands

seminal vesicles, prostate, bulbourethral (Cowper's), Ampulla in some species

22

which glands empty into the ductus deferens?

ampullae and vesicular glands

23

which glands empty into the urethra?

prostate and bulbourethral glands

24

epithelium of seminal vesicles

pseudostratified columnar

25

2 parts of prostate

body of prostate (wrapped around pelvic urethra), disseminate portion (embedded in lamina propria/submucosa of pelvic urethra)

26

what does prostate gland secrete?

proteins and lipids

27

what does bulbourethral gland secrete?

mucus and glycogen

28

prostatic portion of urethra location

from bladder to prostate

29

membranous portion of urethra location

from prostate to bulb of penis

30

spongiose portion of urethra location

distal to bulb of penis

31

epithelium of penis

stratified squamous epithelium

32

corpora cavernosa

paired large bodies of erectile tissue located dorsal to the os penis

33

os penis

bone between the urethra and corpora cavernosa

34

corpus spongiosum

small medial body of erectile tissue surrounding the urethra

35

retractor penis

bundle of smooth muscle ventral to the urethra and corpus spongiosum

36

epithelium that lines urethra

transitional epithelium

37

erection

relaxation of smooth muscle in the helicine arteries, leading to increased blood flow into cavernous tissue, compressing vein and reducing outflow

38

fibroelastic vs. musculocavernous penis **

fibroelastic has less complex/vascular corpus cavernosum and no bulbospongiosus or retractor penis. Fibroelastic penis elongates but does not increase in diamter when erect

39

Which species has fibroelastic penis?

bull

40

Which species has musculocavernous penis?

stallion

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