Topic 17: Reproductive System - Overview + Male Gonads Flashcards

1
Q

What are the structures of the reproductive system? (3)

A
  • gonads (testes/ovaries)
  • ducts
  • accessory glands
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2
Q

What is the function of gonads?

A
  • produce gametes and hormones
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3
Q

What is the function of ducts?

A
  • transport and store gametes
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4
Q

What is the function of accessory glands?

A

produce secretions that support gametes

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5
Q

The gonads of the male reproductive system are testes. Where are they located?

A
  • scrotum
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6
Q

What is the scrotum made of? (2)

A
  • skin
  • CT
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7
Q

What 2 tunics surround the testes?

A
  • tunica vaginalis
  • tunica albuginea
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8
Q

What is the tunica vaginalis made of? (2)

A
  • outer serous membrane
  • derived from peritoneum
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9
Q

What is the tunica albuginea made of?

A
  • inner fibrous CT capsule
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10
Q

Where does the tunica albuginea extend to?

A
  • extends inward to divided testis into lobules
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11
Q

Each lobule of the testes contains what 2 structures?

A
  • seminiferous tubules
  • Leydig cells (interstitial cells)
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12
Q

what is the function of seminiferous tubules?

A
  • produce sperm (spermatogenesis)
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13
Q

What do the seminiferous tubules unite to form?

A
  • testis (rete = network)
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14
Q

What do the wall of seminiferous tubules contain? (2)

A

-germ cells in various stages of development
- Sertoli cells (sustentocytes)

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15
Q

What is the function of sertoli cells? (2)

A
  • support and nourish germ cells
  • produce testicular fluid for transport in lumen
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16
Q

Where can you find sertoli cells? (2)

A
  • surrounds developing gametes
  • extend from basement membrane to lumen
17
Q

What type of junctions do sertoli cells have? Why? (3)

A
  • tight junctions
  • form the blood-testis barrier
  • produce sperm from immune system, toxin, drugs, etc
18
Q

Which hormone do sertoli cells respond to?

A
  • Follicle stimulating hormone (FSH)
19
Q

Where can you find Leydig cells?

A
  • in CT between seminiferous tubules
20
Q

What is the function of Leydig cells?

A
  • secrete testosterone (hormone)