Flashcards in coccyx Deck (10):
what is the number of coccygeal somites?
what is the typical number of segments that unite to form the adult coccyx?
when is ossification of coccyx completed?
about age 30
what is the direction of fusion of coccygeal segments?
from caudal to cranial, the last segments to fuse together are Co1 and Co2
what is the direction of the coccygeal curve?
what is the major motion and range of motion for coccyx?
flexion - extension, 5-20 degrees
how many coccygeal nerves are present in the fetus?
typically 5 pairs of coccygeal nerves are present
what forms the coccygeal nerve plexus?
S4, S5 and Co1 nerves
what is the ganglion impar?
midline symphathetic ganglion