Axial Skeleton Flashcards
Vertebral column
C7, T13, L7, S3, Cd 20-23
cervical 7, thoracic 13, lumbar 7, sacral 3, cadual 20-23
interarcual space
between vertebral arches of neighboring vertebrae
flavum ligament
space closed with a short and strong elastic ligament
vertebral canal
wider in cervical and lumbar regions and narrows in thoracic and sacral segments
contains spinal cord, roots of spinal nerves etc
C7
no transverse foramen
vertical pointing spinous process
costal fovea (articulates w rib 1)
thoracic vertebrae
spinous process gives surfaces for epaxial muscles to attach
costal fovea in body
mamillary process
ribs 1-9
true ribs
articulate directly with sternum
ribs 10-13
false ribs
do not articulate with sternum
ribs 13
floating ribs
ventral end do not join with bone or cartilage
manubrium
most cranial portion of sternum, articulate with first costal cartilages
lumbar vertebrae
short spinous process
have mobile synovial joint
transverse processes start to point angle more as go down
atlantooccipital joint
condylar, “yes” joint
between atlas and occipital
atlantoaxial joint
pivot, “no” joint
between atlas and axis
supraspinous lig
joints most dorsal end of all spinous processes except cervical
interspinous lig
membranous lig that joint caudal border of a spinous process with cranial border of spinous process of caudal vertebrae
except cervical region
nuchal lig
elastic lig continuation of surpasinous lig in cervical region of dogs
prevent fatigue of epaxial mm
dorsal longitudinal lig
band of CT that runs in cranio-caudal direction dorsal to vertebrae bodies
ventral longitudinal lig
band of CT that runs cranio-caudal direction ventral to vertebrae bodies
nucleus pulposus
resist the compression of vertebral bodies
intervertebral discs
fibrocartiladge cushion that joins 2 vertebral bodies together
symphysis joint
costotransverse joint
synovial joint
between costal tubercle of the rib and tranverse process of vertebrae
both bones have same number of
costovertebral joint
synovial joint
amoung the head of the rib and costal fovea of the same number of vertebrae and costal fovea of cranial vertebrae
last 3 thoracic vertebrae
only have cranial fovea, so heads of these articulate with corresponding vertebrae
intercapital lig
lig that connects the heads of corresponding ribs from right and left sides