Week 3 Flashcards
Vertebral column
24 superior articulating vertebrae & 9 inferior fused vertebrae
Quantities cervical, thoracic, lumbar, sacral & coccygeal vertebrae
7, 12, 5, 5 & 4
Atlas
C1, Larger TPs, No SP, No Body
Atlanti-Occipital Joint
(Joint type & action)
Biaxial Ball & Socket
Nods the head yes
Transverse Processes
Protrusions outward/laterally on either side of vertebra
Spinous Process
posterior Protrusion of vertebra
Axis
2nd Cervical Vertebra
Dens/odontoid process (bony projection upon which C1 pivots)
Atlantoaxial (AA) joint
(type & action)
Pivot joint
Atlas (C1) pivots on the Dens of the Axis (C2)
Nods head “no”
Vertebral Articulations
(C3-L5) joint type & action
Plane/gliding
Limited movement individually (flexion & extension?) but cumulative effect of several vertebrae can allow for substantial mvmnt
Brachial Plexus
Large bundle of nerves that innervates the shoulder & upper extremity
Exits TVPs of C5-T1, located between anterior & middle scalenes, continued inferiority & latterly under clavicle to axillary
Subclavian Artery
Artery below clavicles,
provides blood supply to the bilateral upper extremities
Carotid Artery
Medial & deep to scm
Primary supplier of blood to head & neck
Anterior & lateral sides of neck
Ligamentum Nuchae
Fin like sheet of connective tissue
Runs along the sag. plane fr external occipital protuberance to SP of C7
Scalenes OIA
O TPs C2-C7
I (posterior) 2nd rib; (ant & mid) 1st rib
A
unilaterally: laterally FLEXES neck ipsilaterally; & ROTATES neck contralaterally
Bilaterally: FLEXES neck @ spinal joints
Sternlcleidomastoid SCM OIAs
O sternal head & clavicular head
I MP of temporal bone & lateral superior nuchal line of occipital bone
A
Unilaterally: FLEXES head & neck ipsilaterally, & ROTATES contralaterally
Bilaterally: FLEXES head & neck
Splenius Capitis
O ligamintum nuchae & SPs of C7-T4
I MP of temporal bone & lateral 1/3 of SNL of occipital bone
As
Unilaterally FLEXES head & neck ipsilaterally @ spinal joints & ROTATES ipsilaterally
Bilaterally EXTENDS head & neck @ spinal joints
Splenius Cervicus OIAs
O SPs of T3-T6
I TPs of C1-C3
As
Unilaterally: Laterally FLEXES & ROTATES the neck ipsilaterally
Bilaterally: EXTENDS neck @ spinal joints
