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HUBS192 > Lecture #44 - Male repro 2 > Flashcards

Lecture #44 - Male repro 2 Flashcards

1
Q

The penis #1:

  1. What two functions?
  2. Cylindrical organ but what three parts and what does the most proximal part do and what is the most distal part covered by?
A

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2
Q

The penis #2:

  1. How many cylindrical erectile tissues?

How is the penis named? Like the dorsal and ventral - in what position was it named?

  1. Two _____ ____
    - ____ erectile tissue
    - dorsal or ventral?
  2. One _____ ____
    - contains _____
    - forms _____ and _____
    - dorsal or ventral?
    - bigger or smaller than corpuscavernosa?
A

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3
Q

Where are the dartos and cremaster muscles and what do they do?

A

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4
Q

What are the three mechanisms for temperature control for the testes?

A

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5
Q

What is vasectomy?

  1. Method of…..
  2. What happens to the vas deferens?
A

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6
Q

What are the three accessory glands and they contribute to _____ ____ composition and volume

Does sperm flow through them?

How many of each?

A

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7
Q

Seminal vesicle

  1. How many?
  2. Where in relation to bladder and ampulla?
  3. Form what with ampulla?
  4. Produce ____ _____ - what percentage of semen?
  5. Contains what to nourish the sperm?
  6. What pH and why?
A

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8
Q

Prostate gland:

  1. Where in relation to bladder?
  2. Wraps around what?
  3. Produced _____- what percentage of semen?
  4. What pH and why?
  5. Milky fluid containing what (specifically what?)
  6. Contains what to nourish sperm
  7. Contributes to sperm _____, ______ and ______
A

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9
Q

Bulbourethral glands:

  1. How many?
  2. Where?
  3. Open into what part of the urethra?
  4. Contributes what percentage to the sperm?
  5. Secretions ____ and ______ _____ in urethra prior to ejaculation
A

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10
Q

What’s the generic term for spermatogenesis and oogenesis?

Formation of ____ ____

Occurs via mitosis or meiosis?

Under what control?

A

Gametogenesis

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11
Q

Spermatogenesis (generic):

  1. Process by which _____ (cells that are fated to…..) are transformed to mature _____ (sperm)
  2. Formation of the male _____
  3. Happens inside what?
A

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12
Q

Meiosis

  1. Go read slide 22
  2. Three names for the three different cells
A

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13
Q

Spermatogenesis (real thing)

During development:
1. ______ migrate from ____ ____ to _____ and remain _____ until puberty

Puberty:

  1. What divides by mitosis not type ___ and type ___ spermatogonia? Diploid or haploid?
  2. One spermatogonium forms how many spermatozoa?
  3. Which type of spermatogonia differentiate into primary spermatocyte? Are the primary diploid or haploid?
  4. What forms after meiosis 1?
  5. What forms after meiosis 2?
  6. _____ differentiate into _____ with a head, tail and body via _____
  7. What do type A do?
  8. Then were do the spermatozoa go>
A

Puberty:

  1. What divides by mitosis not type A and type B - spermatogonia? Diploid or haploid?
    - diploid
  2. One spermatogonium forms how many spermatozoa?
    - 4
  3. Which type of spermatogonia differentiate into primary spermatocyte? Are the primary diploid or haploid?
    - Type B differentiates into primary spermatocyte
  4. What forms after meiosis 1?
    - secondary spermatocyte (haploid)
  5. What forms after meiosis 2?
    - secondary split into spermatids (haploid)
  6. Spermatids differentiate into spermatozoa with a head, tail and body via spermiogenesis
  7. They there and do mitosis to replenish supply of sperm
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14
Q

Later stages of spermatogenesis:

4 stages of what needs to happen - what happens?

A
  1. Appearance of acrosomal vesicle and flagellum
  2. Growth of acrosome and acrosome and flagellum
  3. Shedding of excess cytoplasm
  4. Mature sperm
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15
Q

Spermatogenesis occurs in the _____ ____ and we need _____ for this

A

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16
Q
  1. What 5 hormones are there in the male and which ones of these are also in the female?
  2. Where are all the five released from?
  3. What do they all control?
  4. GnRH
    - acts on _____ by causing releasesof what hormones that act on the gonads?
    - inhibited until ____
    - starts cascade of events that begins what?
  5. What kind of hormone is testosterone and the two purposes of it in males
  6. What does inhibin inhibit?
A

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17
Q

Endocrine control of the testes:

  1. What two hormones that control spermaotgenesis?
  2. Inhibin inhibits what hormone from what gland?
  3. LH stimulates production of _____ from what cells?
  4. Negative feedback of testosterone suppresses what two hormone from which glands?
  5. Why and when would you want to inhibit spermatogenesis?
A

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HUBS192 (44 decks)

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