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Physiology & Pharmacology > Male Reproductive Tract > Flashcards

Male Reproductive Tract Flashcards

1
Q

Components of the male reproductive tract

A
  • Penis
  • Complicated series of tubes
  • Accessory glands that contribute to semen
    (prostate, seminal vesicles and bulbo-urethral glands)
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2
Q

What is cut in a vasectomy?

A

Vas deferens

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3
Q

What do seminal vesicles secrete?

A

Seminal fluid

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4
Q

What do bulbourethral glands secrete?

A

Mucous to lubricate

preejaculate to flush out the urethra

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5
Q

Why is zinc secreted from the bulbourethral glands?

A

Stabilises the chromatin in sperm cells

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6
Q

Sperm - stages of development

A 
Spermatogonia A
Spermatogonia B
Spermatocyte I
Spermatocyte II
Spermatid
Sperm
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7
Q

Structure of testes

A

Rete testis
Mediastinum
Tunica vaginalis
Septa

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8
Q

What does the rete testis do?

A

Carries sperm from seminiferous tubules to the efferent ducts

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9
Q

What is the mediastinum testees?

A

Network of fibrous connective tissues

Midlines of the testes

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10
Q

What is the tunica vaginalis?

A

Pouch of serous membrane that covers the testes

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11
Q

What is the septa?

A

Separates the tubules

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12
Q

What are the seminiferous tubules surrounded by?

A

Myoid cells

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13
Q

What do seminiferous tubules separate?

A

Sperm from the blood

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14
Q

What do Sertoli cells do?

A

Stop antibodies from destroying sperm

  • provide nutritional and mechanical support to germ cells
  • phagocytic
  • secretory
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15
Q

What are Sertoli cell sensitive to?

A

FSH

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16
Q

Why do Leydig cells have lots of SER?

A

Produce testosterone with stimulation by LH from anterior pituitary

17
Q

In females, what does LH stimulate?

A

Final stages of follicle maturation, corpus luteum formation and ovulation

18
Q

What does ejaculate consist of?

A

Sialproteins from bulbourethral gland
Acid phosphatase from prostate
Sperm from testes
Fructose, high K+, prostaglandins from seminal vesicles

19
Q

What is used as a marker for prostate cancer?

A

Acid phosphatase

20
Q

How many enzymes does the acrosome consist of?

A

60

21
Q

What occurs during capacitation?

A

Sperm travels through mucus which scrapes off glycoprotein coat and seminal proteins

22
Q

What are some faults in sperm?

A
  • Number
  • Head shape
  • Motility
  • —> infertility
23
Q

What are the two swimming patterns of sperm? How are they controlled?

A

1) Forward progressive
2) Hyperactivated
The amount of cholesterol in the membrane of the tail changes between states

Physiology & Pharmacology (25 decks)

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