lec 3 Flashcards
vertebral column develop from
in 4th W , paradoxial mesoderm
somite appears in day
20 then every day add 3
picture of fetus revealed that he have 13 pairs of somite , what is the fetus age ?
24 days
picture of fetus revealed that he have 21 pairs of somite , what is the fetus age ?
30 days ( 1 M)
22 days fetus , how many somite do she have ?
7 pairs of somite
when is the notocord degenrate in vertebral column part ?
when causdal condensed part join cephalic less condensed part .
pedicile and lamina formed from ?
backward migration
write the fate of costal process
1- cervical => partially fuse with transverse process to from formen transversum
2- thoracic => enlage forming ribs
3-lumbar => completly fuse with transverse process forming redumentary
4- sacral => forming ala of sacral
stage of ossification of vertebral column?
1- primary stage : 2 ossification centers at 8th M in intrautrine life (in centrum, each half of neural arch )
2- secondary ossificaion : 5 ossification centers at puberty
intersegmental position of vertebral result from ?
fusion of caudal portion to cranial portion in sclerotome
base of occipital bone consist of ?
o4 + c1
primary curve
T+S
2ry curve
C + L
other name for brevicollis ?
kipple fiel syndrome
kipple fiel syndrome result from?
fusion and shortening of the cervical vertebra
