Unit 1 A

what muscles make up the superficial hypaxial?

trapezius

latissimus dorsi

levator scapulae

Rhomboids

what nerve innervates the trapezius?

CN XI

what nerve innervates the latissimus dorsi?

thoracodorsal n

what nerve innervates the levator scapulae?

dorsal n

what nerve innervates the rhomboids?

dorsal n

what muscles participate in scapula adduction?

trapezius

Rhomboid major and minor

what muscles participate in scapula elevation?

trapezius

levator scapulae

what muscles participate in scapula rotation?

trapezius

levator scapulae

rhomboid major and minor

what muscle participates in humerus extension, medial rotation, and adduction?

latissmus dorsi

what muscles make up the superficial epaxial?

splenius capitis

splenius cervicis

what muscles make up the intermediate epaxial (erector spinae)?

iliocostalis lumborum

iliocostalis thoracis

iliocostalis cervicis

longissimus thoracis

longissmuss cervicis

longissmuss capitis

spinalis thoracis

what muscles does the posterior rami innervate?

iliocostalis lumborum, thoracis, cervicis

longissimus thoracis, cervicis, capitis

spinalis thoracis

semispinalis capitis

semispinalis cervicis

rotatores longus and brevis

multifundus

levator costarum

interspinalis

intertransversarii

what muscle is also innervated by the anterior rami?

intertransversarii

what muscles make up the deep epaxial?

semispinalis cervicis

semispinalis capitis

rotatores

multifundus

levator costarum

interspinalis

intertransversii

which muslce is innervated by the intercostal n?

serratus posterior anterior and serratus posterior inferior

what muscles participate in rib elevation?

serratus posterior superior

levator costarum

what muscles participate in rib depression?

serrratus posterior inferior

what muscles participate in head extension?

splenius capititis

longissimus capitis

semispinalis capitis

rectus capitis posterior major

rectus capitis posterior minor

obliquus capitis superior

what muscles participate in head rotation?

splenius capitis (ipsilateral)

semispinalis capitis (contralateral)

which muscles participate in head lateral flexion?

obliquus capitis inferior

obliquus capitis superior

what muscles participate in neck extension?

splenius cervicis

semispinalis capitis

semispinalis cervicis

what muscles participate in neck rotation?

splenius cervicis (ipslateral)

semispinalis capitis (contralateral)

semispinalis cervicis (contralateral)

what muscles are responsible for vertebral column extension?

iliocostalis lumborum, thoracis, cervicis

longissimus thoracis, cervicis

spinalis thoracis

interspinalis

what muscles are responsible for lateral flexion of the vertebral column?

iliocostalis lumborum, thoracis, cervicis

longissimus thoracis, cervicis

spinalis thoracis

intertransversarii

what muscles are responsible for stabilizing the vertebral column?

multifundus

rotatores longus and brevis

what muscles are responsible for extending the thorax?

semispinalis thoracis

what muslces are responsible for rotating the thorax?

semispinalis thoracis

what type of joint is the atlantoocippital joint?

synovial condylar

what is the action of the atlantooccipital joint?

extend and flex head

where does the atlantoocippital joint connect?

superior articular fact and occipital condyles

what type of joint is the atlantoaxial joint?

synovial joint

synovial plane

what is the action of the atlantoaxial joint?

synovial pivot——head rotation

synovial plane—-helps with flex/ext of head

what does the atlantooccipital joint articulate with?

synovial pivot— dens and anterior arch of atlas

synovial plane—zygopophyseal

what type of joint is the zygopophyseal joint?

synovial plane

what does the zygophophyseal joint articulate with?

superior articular facet

inferior articular facet

what type of joint is the costovertebral joint?

synovial plane

what type of joint is the costotransverse joint?

synovial plane

what is the action of the costovertebral and costotransverse joint?

allows gliding and rotation of ribs

what does the costovertebral joint connect to?

ribs 1 + 10, 11,12= full costal facet

ribs 2-9 demicostal facet + head of rib

what does the costotransverse joint connect to?

transverse costal facet of ribs 1-10 + tubercle of rib

what ligaments aid in preventing hyperflexion of the vertebral column?

supraspinous lig

ligamentum flava

posterior longitudinal ligament

what type of joint is the uncovertebral joint?

synovial

what is the action of the uncovertebral joint?

limit lateral flexion

where does the uncovertebral joint articulate?

uncinate processes (C3-C6)

what type of joint is the intervertebral disc?

cartilaginous symphysis

what is the action of the intervertebral discs?

shock absorption

what type of joint is the sacrococcygeal joint?

cartilaginous

articulates with sacrum + coccyx

what type of joint is the intercoccygeal?

cartilaginous

fused coccyx bones