Spermatogenesis Flashcards
1
Q
define
A
sequence of events by which primordial germ cells converted to mature sperms
2
Q
primordial germ cells are
A
spermatogonia
3
Q
when
A
puberty
4
Q
where
A
seminiferous tubules of testes
5
Q
name phases of spermatogenesis
A
- multiplication
- growth
- maturation
- spermiogenesis
6
Q
duration
A
74 days
2 months
7
Q
multiplication phase
A
formation of primary spermatocyte from the spermatogonium
8
Q
are primary spermatocyte n or 2n
A
diploid 2n
9
Q
which type of spermatogonium is functional?
A
type A
10
Q
which are the largest germ cells?
A
primary spermatocyte
11
Q
hormone of spermatogenesis
A
testosterone
12
Q
testosterone secreted by
A
leydig cells in interstitial spaces
13
Q
supporting cells
A
Sertoli’s/Sustentacular cells
14
Q
function of sertoli’s cells
A
nourishment of sperms and shedding of cytoplasm
15
Q
location of sertoli’s cells
A
walls of seminiferous tubules
