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)
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1
Q

fx of septa in testis

A

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

2
Q

seminiferous tubules house

A

developing germ cells

3
Q

leydig cells secrete what hormone?

A

testosterone

4
Q

interstitial/adventitial tissue contains 2 things

A

leydig cells, blood vessels

5
Q

what tissue surrounds rete testis?

A

mediastinum

6
Q

rete testis

A

network of randomly anastomized tubules in the mediastinum.

7
Q

epithelium lining rete testis

A

simple cuboidal epithelium

8
Q

Are spermatogonia and primary spermatocyte diploid or haploid?

A

diploid

9
Q

Are spermatids diploid or haploid?

A

haploid

10
Q

Sperm developmental stages (4)

A

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

11
Q

fx of sertoli cells

A

Provide proper microenvironment for developing sperm cells.

  • Synthesize Mullerian inhibitory Factory (MIF)
  • Form blood-testis barrier through tight junctions
12
Q

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

A

Straight tubules

13
Q

efferent ductules fx

A

connect rete tesis with epididymis

14
Q

Ductus epididymus fx

A

Mature/store sperm, absorb fluid and androgen binding protein

15
Q

Ductus deferens fx

A

transport sperm from the epididymis in anticipation of ejaculation

16
Q

epithelium of ductus epididymus

A

pseudostratified columnar epithelium

17
Q

defining characteristic of vas deferens histologically

A

thick tunica muscularis for transporting sperm

18
Q

Ampullary gland fx

A

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

19
Q

epithelium of ampullary glands

A

columnar epithelium

20
Q

main fx of accessory glands

A

produce seminal fluid

21
Q

3 accessory glands

A

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

22
Q

which glands empty into the ductus deferens?

A

ampullae and vesicular glands

23
Q

which glands empty into the urethra?

A

prostate and bulbourethral glands

24
Q

epithelium of seminal vesicles

A

pseudostratified columnar

25
Q

2 parts of prostate

A

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

26
Q

what does prostate gland secrete?

A

proteins and lipids

27
Q

what does bulbourethral gland secrete?

A

mucus and glycogen

28
Q

prostatic portion of urethra location

A

from bladder to prostate

29
Q

membranous portion of urethra location

A

from prostate to bulb of penis

30
Q

spongiose portion of urethra location

A

distal to bulb of penis

31
Q

epithelium of penis

A

stratified squamous epithelium

32
Q

corpora cavernosa

A

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

33
Q

os penis

A

bone between the urethra and corpora cavernosa

34
Q

corpus spongiosum

A

small medial body of erectile tissue surrounding the urethra

35
Q

retractor penis

A

bundle of smooth muscle ventral to the urethra and corpus spongiosum

36
Q

epithelium that lines urethra

A

transitional epithelium

37
Q

erection

A

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

38
Q

fibroelastic vs. musculocavernous penis **

A

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
Q

Which species has fibroelastic penis?

A

bull

40
Q

Which species has musculocavernous penis?

A

stallion

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