Axial Skeleton: Cervical Spine Osteology Flashcards
Why know the specifics of osteology and arthrology?
-to palpate and examine/rexaminne properly
-tissue state,joint bone position/pathomechanics
Structures of Appendicular skeleton:
Bones of the extremities
Clavicle
Pelvis
Structures of Axial Skeleton:
Cranium
Vertebral column
Ribs
Sternum
-Encases and protects
-Brain
-Sensory organs: eyes, nose, vestibular
Cranium
2 divisons:
Scalelike and thinner
Thick; protects nerves vessels and hearing/balance structures
-Mastoid process
-External auditory
-Zygomatic arch
-Glenoid fossa
Temporal Bone
Roles of the vertebral column:
-Stability and motion
-Protection (spinal cord, ventral and dorsal nerve roots, dorsal root ganglion, exting spinal nerve roots, vertebral aa.)
What are the three divisions of the vertebrae?
Body
Posterior elements
Pedicles
-anterior, primary weight bearing portion
body
-transverse and spinous process, laminae, and articular process
posterior elements
-the bridge that connects the body with the posterior elements; transfer the muscle forces applied to. the posterior elements to the discs/body
Pedicles:
Function of the ribs:
Protection for cardiopulmonary organs
Slightly convex and rough anteriorly
Slightly concave and smooth posteriorly
Sternum
What are the 3 parts of the sternum?
Manubrium
The body
Xiphoid process
1-7 attach directly - sternocostal joints; 8-10 via cartilage
Sternocostal joint
Cervical/lumbar convex anteriorly, concave posteriorly =
Lordosis
Sacrum and thoracic =
Kyphosis
-poorly defined
-thin, membranous
-taunt in contralateral lateral flexion
-Slightly taut in forward flexion
Intertransverse ligamnets
-long, strong, straplike - narrow at C/S widens lower
-Basilar part of occipital bone –> entire anterior surface of vertebral bodies (deeper fibers blend with and reinforce discs) —> sacrum
-taunt in extension and slack flexion
Anterior longitudinal ligament (ALL)
-a continues band of connective tissue
-the entire length of posterior surfaces of all vertebral bodies C2 sacrum
-within the vertebral canal anterior to the spinal cord
-deep fibers blend with and reinforce the posterior side of discs
-Cranially is broad, narrows toward lumbar regions
-Taunt with flexion
Posterior longitudinal ligament
-attach to the entire rim of teh facet surfaces
-blend of elastin and collagen; tough to keep integrity of joint/flexible to allow athrokinematics)
-reinforced by adjacent multifidus/ligamentum flava
-slack in neutral
-some fibers taut in each end ROM
Capsular ligaments of apophyseal joints
Knowlege of the ligament related to the axis of rotation: Which plane?
-any ligament posterior will stretch in flexion; an anterior stretch in extension
Sagittal plane
-each vertebra contributes motion in a complex pattern of simultaneous rotational and translation
Spine motion
The “wiggle room” between the two vertebra is called the _________
neutral zone
The neutral zone that has limited to no movement within the spine indicates:
hypomobile