Dr. May Histology Flashcards Preview

week 52 > Dr. May Histology > Flashcards

Flashcards in Dr. May Histology Deck (53)
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1

Seminiferous tubules

2

seminiferous tubules?

  • Fxn:
    • provide duct for sperm leaving testis to epididymis
  • Lots of tubes
  • spermatocytes-inside tube
  • Spermatagonia
    • border of tube
  • Sertoli cells
  • Leydig/Interstitial cells

3

Sertoli Cells

  • Found in Seminiferous tubules
  • Support and noursih developing spermatozoa
  • make androgen binding protein (ABP) to hold testosterone nearby

4

Leydig Cells

  • Found in seminiferous tubules
    • b/w tubes
  • Bind to LH 
  • secrete testosterone (male sex hormone)

5

Identify total structure

Seminiferous tubules

6

What is the middle arrow referring to?

Spermatogonia in Seminiferous tubule

7

What is the bottom arrow referring to?

Spermatocytes in seminiferous tubule

8

Identify structure in left field of view

sertoli cells

 

9

Identify structure in the center field of view?

Leydig cells in seminiferous tubules

(aka interstitium cells)

10

What is the arrow referring to?

Leydig cells of seminiferous tubule

11

Label 1-6

12

Efferent ductule: Histo

  • Scalloped!
    • Epididymis has stereocilia in lUmen!
  • Tall ciliated columnar or low cuboidal epithelium
    • Low cuboidal cells-absorb testicular fluid
    • Cilia-move sperm 

13

Identify

Efferent Duct

  • scalloped
  • no stereocilia (epididymis)

14

Epididymis

  • 3 parts:
    • Head
    • Body
    • Tail
  • Pseudostratified columnar epithelium
  • STEREOCILIA
    • so not eferent duct
  • Circular smooth muscle
  • might have bullet shaped heads in lumen

15

16

Identify

  • Epididymis
    • not scalloped
    • bullets in lumen or stereocilia
    • pseudostratified colunar epithelium

17

Identify

Efferent Ductule

  • Scalloped
  • no stereocilia

18

Identify

  • Epididymis
    • stereocilia
    • no scalloped

19

Identify

Vas Deferens

thick layer of smooth muscle (3 layers)

20

Vas Deferens: Histo

  • Pseudostratified columnar epithelium + Thick SM layer
    • 3 layers
      • outer=longitduintal SM
      • middle=circular SM
      • inner=longitudinal SM

21

22

Identify

Prostatic Urethra

SMILEY FACE

23

Prostatic Uretha

Smiley Face!

24

Identify:

Prostatic urethra

(smiley face or  corpora amylacea)

25

Identify

Penile Urethra

-2x corpus cavernosum

-1x corpus spongiosum

26

Seminal Vesicle: Fxn

  • Primary producer of semen (60-70%)
    • alkaline viscous fluid
    • fructose rich
    • contains
      • citrate
      • prostaglandins
      • proteijns for coagulation of semen

27

Identify:

Seminal Vesicle

28

What is circled

Seminal Vesicle

29

What is circled?

Prostate gland

30

Identify?

Prostate gland