vertebra details

Question 1

what is the pars interacticularis? what are fractures called in this region?

Answer 1

the portion of the vertebral lamina that is between the superior and inferior articular. fractures in this region are called spondylolysis

Question 2

how are cervical vertebrae distinguished?

Answer 2

all have a hole in the transverse process though which the vertebral artery passes . C1 and C2 are unique.

Question 3

foramen transversarium

Answer 3

hole through which vertebral artery passes

Question 4

what distinguished thoracic vertebrae?

Answer 4

they have specialized articulation regions for ribs

Question 5

what distinguishes lumbar vertebrae

Answer 5

they are large with heavy bodies. they also have mammillary processes which are located between the spine and the transverse processesl

Question 6

features of the C1 vertebra?

Answer 6

has no spine, has anterior and posterior arches, large superior articular facets for articulation with the occipital condyles of the skull

Question 7

features of C2?

Answer 7

has the dens (odontoid or toothlike process) which articulates with the homologue of the “body” of the atlas, forming atlanto-axial joint.

Question 8

what makes the sacrum? surface?

Answer 8

five sacral vertebrae are fused forming this bone. It is ridged on the posterior side but smooth anterior surface.

Question 9

what is sacral hiatus?

Answer 9

lower opening into the sacral canal.

Question 10

what are the sacral foramina?

Answer 10

openings for sacral spinal nerves

Question 11

coccyx

Answer 11

the coccygeal vertebrae (four) are fused forming this tail like process