Spermatogenesis Flashcards
1
Q
What is spermatogenesis?
A
Production/development of mature spermatozoa
2
Q
What is sperm?
A
Male haploid gametes (sex cells)
3
Q
What is FSH?
A
Follicle stimulating hormone
Initiated from anterior pituitary gland
4
Q
What is spermatogonia?
A
Sperm developed from stem cells
5
Q
What happens to spermatogonia?
A
- Multiply by cell division (mitosis)
- Half differentiate to primary spermatocytes
- Half remain as stem cells
6
Q
What happens to the primary spermatocytes?
A
Undergo meiosis —> 2 secondary spermatocytes (haploid)
7
Q
What happens to the secondary spermatocytes?
A
Divide meiotically —> spermatids (contain half chromatids)
8
Q
What does haploid mean?
A
Has one of each chromosome pair
9
Q
What happens to the spermatids?
A
Develop into mature spermatozoa in the epididymis & vas deferens
10
Q
How many chromosomes do spermatids have?
A
23 single chromosomes
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)
