Section 1.2 Anatomy Of The Head, Neck, Spine, And Thorax Flashcards
Sternocleidomastoid origin sternal head
Manubrium of sternum
Sternocleidomastoid origin clavicle head
Medial clavicle
Sternocleidomastoid insertion
Mastoid process of temporal bone, superior unchallenged line of occipital bone
Sternocleidomastoid action
One side - neck flexion, neck lateral flexion, neck contralateral rotation
Sternocleidomastoid arterial supply
Occipital, superior thyroid
Anterior scalene origin
Transverse processes of C3-6 vertebrae
Anterior scalene insertion
First rib
Anterior scalene action
Neck flexion, neck lateral flexion, neck contralateral rotation, and first rib elevation
Anterior scalene inner action
Ventral rami of C4-6
Anterior scalene arterial supply
Transverse cervical, inferior thyroid
Selenius capitis origin
Ligamentum nuchae, spinous processes of C7 vertebra, and spinous processes of T1-4 vertebrae
Splenius capitis insertion
Mastoid process of temporal bone, superior nuchal line of occiput
Splenius capitis action
Neck extension, neck lateral flexion, and neck rotation
Splenius capitis innervation
C2-4
Splenius capitis arterial supply
Occipital, transverse cervical
Trapezius origin upper portion
Superior nuchal line, external occipital protuberance, ligament of nuchae, C7 spinous process of vertebra
Trapezius origin middle portion
T1-5 spinous processes of vertebrae
Trapezius origin lower portion
T6-12 spinous processes of vertebrae
Trapezius insertion upper portion
Lateral clavicle
Trapezius insertion middle portion
Acromion portion of scapula, spine of scapula
Trapezius insertion lower portion
Root of spine of scapula
