Spermatogenesis Flashcards

1
Q

What is spermatogenesis?

A

Production/development of mature spermatozoa

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2
Q

What is sperm?

A

Male haploid gametes (sex cells)

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3
Q

What is FSH?

A

Follicle stimulating hormone
Initiated from anterior pituitary gland

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4
Q

What is spermatogonia?

A

Sperm developed from stem cells

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5
Q

What happens to spermatogonia?

A
  • Multiply by cell division (mitosis)
  • Half differentiate to primary spermatocytes
  • Half remain as stem cells
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6
Q

What happens to the primary spermatocytes?

A

Undergo meiosis —> 2 secondary spermatocytes (haploid)

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7
Q

What happens to the secondary spermatocytes?

A

Divide meiotically —> spermatids (contain half chromatids)

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8
Q

What does haploid mean?

A

Has one of each chromosome pair

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9
Q

What happens to the spermatids?

A

Develop into mature spermatozoa in the epididymis & vas deferens

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10
Q

How many chromosomes do spermatids have?

A

23 single chromosomes

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11
Q

What 3 components make up sperm?

A
  • Head (nucleus contains chromosomes + acrosome contains enzymes to digest membrane)
  • Midpiece (mitochondria for energy)
  • Flagellum (locomotion)
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