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Cell Bio Block 4 > Male Reproductive > Flashcards

Male Reproductive Flashcards

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Biology 101 flashcards
0
Q

What do seminiferous tubules produce

A

Spermatozoa

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1
Q

What do interstitial cells (leydig) cells produce

A

Testicular androgens

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2
Q

What is the path of the seminiferous tubules to the epididymus

A

Straight tubules
Rete testis
Ductuli efferentes
Epididymus

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3
Q

What epithelium lines the seminiferous tubules

A

Complex stratified epithelium

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4
Q

At are the two types of cells in the seminiferous epithelium

A 
Supporting cells (serotoli cells)
Cells of spermatic lineage
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5
Q

What is the process by which spermatozoa are formed

A

Spermatogenesis

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6
Q

Spermatogenesis begins with what cell

A

Spermatogonium

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7
Q

What is the process of cells in spermatogenesis

A 
Spermatogonium 
Type a spermatogonia
Type b spermatogonia 
Primary spermatocytes
Secondary spermatocytes 
Spermatids
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8
Q

What are the largest cells of spermatic lineage

A

Primary spermatocytes

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9
Q

What is the genetic number for primary spermatocytes

A

2n 4d

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10
Q

What is the genetic number of secondary spermatocytes

A

1n 2d

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11
Q

What is the genetic number of spermatids

A

1n 1d

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12
Q

What are the three stages of spermiogenesis

A

Golgi
Acrosomal
Maturation

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13
Q

What happens in the Golgi phase of spermiogenesis

A

Single Acrosome forms

Flagellar axoneme begins to form

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14
Q

What happens in the acrosomal phase

A

Acrosome is formed
Mitochondria aggregate around middle piece
Flagella is formed

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15
Q

What happens in the maturation phase

A

Excess cytoplasm is shed

Spermatozoa are released

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16
Q

What does testicular fluid contain

A

Steroids
Proteins
Ions
Androgen binding protein

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17
Q

True or false: Serotoli cells divide during the reproductive period

A

False

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18
Q

What type of junctions bind serotoli cells

A

Occluding and gap

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19
Q

Sertoli cells separate the seminiferous tubule into what two compartments

A

Basal compartment

Ad luminal compartment

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20
Q

What three things do Sertoli cells release

A

Fluid for spermatozoa
Androgen binding protein
Inhibit

21
Q

What does androgen binding protein do

A

Concentrates testosterone

22
Q

What controls ABP

A

FSH and testosterone

23
Q

What does inhibin do

A

Suppresses FSH

24
Q

What does anti-mullerian hormone do?

A

Promotes regression of Müllerian ducts in male fetuses

25
Q

Interstitial tissue is important site for ________ production

A

Androgen

26
Q

Mitochondria and SER in leydig cells produce what

A

Testosterone

27
Q

What stimulates leydig cells

A

Luteinizing hormone

28
Q

What are the three mechanisms that maintain testicular temperature at 35C

A

Cremaster muscle contraction
Evaporative cooling
Venous plexus/testicular artery exchange

29
Q

Where are the tubuli recti in the male reproductive system

A

Join seminiferous tubule loop to the rete testis

30
Q

What type of epithelium is in the tubuli recti

A

Cuboidal with dense connective tissue

31
Q

Where is the rete testis in the male reproductive system

A

Connects tubuli recti to Ductuli efferentes

32
Q

What type of epithelium is in the rete testis

A

Cuboidal

33
Q

Where is the ductuli efferentes

A

From rete testis to the epididymus

34
Q

What is the epithelium in the Ductuli efferentes

A

Nonciliated cuboidal cells + Ciliated cells (beat toward epididymis)

35
Q

The ductus epididymus forms what part of the epididymus

A

Body and tail

36
Q

What type of epithelium makes up the ductus epididymus

A

Pseudostratified columnar epithelium with stereo cilia

37
Q

What does the vas deferens connect

A

Epididymus to the prostatic urethra

38
Q

What type of epithelium does the vas deferens have

A

Pseudostratified columnar epithelium

39
Q

How does the sperm get through the vas deferens

A

Three longitudinal layers of muscle produce peristaltic contractions

40
Q

What type of epithelium does the seminal vesicle have

A

Cuboidal or Pseudostratified with secretory granules

41
Q

What do seminal vesicles secrete

A

70% seminal fluid (sperm activating substances )

42
Q

What type of epithelium is the prostate

A

Cuboidal or Pseudostratified columnar

43
Q

What does the prostate gland secrete and STORE

A

Prostatic fluid

44
Q

Prostate cancer usually involves enlargement of what portion of the prostate

A

Periphery

45
Q

Benign prostate enlargement involves what part of the prostate

A

Central portion (near urethra)

46
Q

Where are the bulbourethral glands in a male

A

Proximal to the membranous portion of the urethra

47
Q

What type of glands are the bulbourethral glands

A

Tubuloalveolar

48
Q

What type of epithelium do bulbourethral glands have

A

Simple cuboidal epithelium

49
Q

The penile urethra is lined by what type of epithelium

A

Pseudostratified columnar becomes stratified squamous

Cell Bio Block 4 (8 decks)

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