Muscles spine/thorax/abdomen oinf Flashcards
Splenius capitus o
nuchal ligament and spinous process of c7-t3
Splenius capitus i
Fibers run superolaterally to mastoid process of temporal bone and lateral 1/3 of the superior nuchal line of occipital bone
Splenius capitus f
unilateral: ipsilateral side bend and head rotation
bilateral: head and neck extension
splenius cervicis o
nuchal ligament ad spinous process of c7-t3
splenius cervicis i
tubercles of transverse process of c1-4
splenius cervicis f
unilateral: ipsilateral side bend and head rotation
bilateral: head and neck extension
Erector Spinae Group f
Acting Bilaterally: extend vertebral column and head, as back
is flexed, control movement via eccentric contraction
Acting Unilaterally: laterally flex vertebral column and
ipsilateral rotation of the spine
Levatores Costarum o
tips of transverse processes of C7, T1-T-11
Levatores Costarum f
Elevate ribs, assisting in respiration, assist with lateral flexion of vertebral column
Levatores Costarum i
pass inferiolaterally and insert on rib between tubercle and angle
Levatores Costarum n
posterior rami of C8-T11 spinal nerves
Rectus Capitis Posterior Major o
spinous process of c2
Rectus Capitis Posterior Major i
lateral portion of inferior nuchal line
Rectus Capitis Posterior Major f
extension of head, ipsilateral rotation
Rectus Capitis Posterior Minor o
posterior tubercle of posterior arch of c1
Rectus Capitis Posterior Minor i
transverses superiorlaterally to medial part of inferior nuchal line
Rectus Capitis Posterior Minor f
extension of head, ipsilateral rotation
Obliquus Capitis Superior o
posterior tubercle of transverse process of c1
Obliquus Capitis Superior i
traverses superiolaterally between the superior and inferior nuchal lines
Obliquus Capitis Superior f
Extension of the head, ipsilateral rotation
Rectus Capitis Lateralis o/i
Superior attachment along the jugular process of the occipital bone to the transverse process of C1.
Rectus Capitis Lateralis f
Flexes the head and helps stabilize it.
Longus Colli o
Originates from the anterior tubercle of C1, vertebral bodies of C1-3, and transverse processes of C3-6 to traverse to the bodies of C5-T3 and transverse processes of C3-5
Longus Colli f
flexion and contralateral rotation
Longus Capitis f
flex head
Longus Capitis o
basilar part of the occipital bone to the anterior tubercles of C3- C6 transverse processes
Anterior scalene o/i
process of c3-c6, vertebrae of first rib
Anterior scalene f
elevation of first rib, cervical flexion, ipsilateral side bend
Middle scalene o/i
posterior tubercles of transverse process of c2-c7, traversing inferiorlaterally to upper surface of first rib
middle scalene f
elevation of the first rib, ipsilateral side bend
Posterior scalene o/i
originates posterior subercles of transverse process of c5-c7, external border of 2nd rib
posterior scalene f
elevates rib 2, ipsliateral side bend of cervical spine
sternocleidomastoid i
lateral surface of mastoid process and lateral ½ of superior nuchal line
sternocleidomastoid o
clavicle head: superior surface of medial clavicle
Sternal head-anterior portion of manubrium
sternocleidomastoid n
spinal accessory nerve XI
sternocleidomastoid f
bilateral action flexes head forward, extends head Unilateral: ipsilateral side bend, contralateral rotation
