events Flashcards
1
Q
dura mater and arachnoid end at level of ?
A
S2
2
Q
start and end of lumar cistern ?
A
start at L2 end at S2
3
Q
number of process of denticulate ligament is ?
A
21
4
Q
level of lumbar puncture ?
A
L3-L4
5
Q
develoment of spinal cord starts in?
A
4th week
6
Q
number of somite of spinal cord ?
A
42-44
7
Q
somites appear in ?
A
day 20 every day add 3
8
Q
primary ossification start at ?
A
8th week
9
Q
secondary ossification at
A
after puberty
10
Q
base of accibital bone developed from?
A
O4 + C1
11
Q
spondylolisthesis usually acucre at ?
A
L5-S1
12
Q
NS start developing at ?
A
3rd week
13
Q
Ant.neuropore close at ?
A
4th week (day 25)
14
Q
post.neuropre close at ?
A
4th week (27)
15
Q
mylination of the brain begins at ?
A
6th month of fatal life
