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45 Cards in this Set

  • Front
  • Back
buccinator
origin: alveolar process of maxilla & mandible

insertion: orbicularis oris

action: compresses cheeks
depressor labil inferioris
origin: mandible between the ant midline & the mental foramen

insertion: skin of lower lip

action: depresses lower lip
levator labil superioris
origin: inferior margin of orbit, sup to the infraorbital foramen

insertion: orbicularis oris

action: elevates upper lip
levator anguli oris
origin: maxilla below the infraorbital foramen

insertion: corner of mouth

action: elevates mouth corner
mentalis
origin: incisive fossa of mandible

insertion: skin of chin

action: elevates/protrudes lower lip
orbicularis oris
origin: maxilla & mandible

insertion: lips

action: compresses/purses lips
risorius
origin: fascia surrounding parotid gland

insertion: angle of mouth

action: draws corner of mouth to the side
depressor anguli oris
origin: anterolateral surface of mandibular body

insertion: skin at angle of mouth

action: depresses corner of mouth
zygomaticus major
origin: zygomatic bone near zygomaticmaxillary suture

insertion: angle of mouth

action: retracts and elevates corner of mouth
zygomaticus minor
origin: zygomatic bone post to zygomaticotemporar suture

insertion: upper lip

action: retracts and elevates upper lip
corrugator supercilli
origin: orbital rim of frontal bone near nasal suture

insertion: eyebrow

action: pulls skin inf & ant, wrinkles brow
levator palpebrae superioris
origin: tendinous band around optic foramen

insertion: upper eyelid

action: elevates upper eyelid
orbicularis oculi
origin: medial marigin of orbit

insertion: skin around eyelids

action: closes eye
procerus
origin: nasal bones & lateral nasal cartilages

insertion: aponeurosis at bridge of nose & skin of forehead

action: moves nose, changes shape/position of nostrils
nasalis
origin: maxilla & alar cartilage of nose

insertion: bridge of nose

action: compresses bridge, depresses tip of nose, elevates corner of nostrils
occicpitofrontalis
(frontal belly)
origin: epicranial aponeurosis

insertion: skin of eyebrow and bridge of nose

action: raises eyebrows, wrinkles forehead
occipitofrontalis
(occipital belly)
origin: epicranial aponeurosis

insertion: epicranial aponeurosis

action: tenses and retracts scalp
platymsa
origin: sup throax between cartilage of 2nd rib & acromion of scapula

insertion: mandible & skin of cheek

action: tenses skin of neck; depresses mandible
splenius
(superficial layer)
origin: spinous procesess and ligaments connection connection inf c and sup T vertebrae

insertion: mastoid process, occipital bone of skull & sup C vertebrae

action: two sides extend neck (together) , each rotates and lat flexes neck to that side
spinalis cervicis
(spinalis group)
origin: inf portion of ligamentum nucahe & spinous process of C7

insertion: spinous process of axis

action: extends neck
spinalis thoracis
(spinalis group)
origin: spinous proceses of inf thoracic and sup L vertebrae

insertion: spinous process of sup T vertebrae

action: extends vertebreal column
longissimus capitis
(longissimus group)
origin: transverse proccesses of inf C and sup T vertebrae

insertion: mastoid process of temporal bone

action: [together] extends head, [alone] each rot and lat flexes neck to that side
longissimus thoracis
(longissimus group)
origin: broad aponeurosis and transverse processes of inf T and sup L vertebrae; joins iliocostalis

insertion: transverse processes of middle & sup C vertebrae

action: extends vertebral column, [alone] each produces lat flexion to that side
iliocostalis cervicis
(iliocostalis group)
origin: sup border of vertebrosternal ribs near angles

insertion: transverse processes of middle and inf cervical vertebrae

action: extends or laterally flexes neck, elevates rib
iliocostalis thoracis
origin: sup borders or inf 7 ribs medial to the angles

insertion: upper ribs & transverse process of last C vertebra

action: stabilizes toracic vertebrae in extension
iliocostalis lumborum
(iliocostalis group)
origin: iliac crest, sacral crests, and spinous processes

insertion: inf surfaces of inf 7 ribs near their angles

action: extends vertebral column, depresses ribs
semispinalis capitis
origin: articular processes of inf C and Transverse processes of sup thoracic vertebrae

insertion: occipital bone, betwen nuchal lines

action: [together] extend head, [alone] extend and lat flexes neck
semispinalis cervicis
origin: transverse processes of T1-T5 or T6

insertion: spinous processes of C2-C5

action: extends vertebral column and rotates towards opposite side
semispinalis thoracis
origin: transverse processes of T6-T10

insertion: spinous processes of C5-T4

action: extends vertebral column and rotates towards opposite side
multifidus
origin: sacrum and transverse processes of each vertebra

insertion: spinous processes of adjacent, more sup vertebra

action: extends vertebral column and rotates towards opposite side
rotatores
origin: transverse processes of each vertebra

insertion: spinous processes of more sup vertebra

action: extends vertebral column and rotates towards opposite side
interspinales
origin: spinous processes of each vertebra

insertion: spinous processes of more sup vertebra

action: extends vertebral column
intertransversarli
origin: transverse processes of each vertebra

insertion: transverse processes of more superior vertebra

action: lat flexes the vertebral column
longus capitis
transverse processes of C vertebrae

insertion: base of the occipital bone

action: [together[ flex the neck, [alone] rotate head to that side
longus colli
origin: ant surface of the C and sup T vertebrae

insertion: transverse processes of sup C vertebrae

action: flexes or rotates neck; limits hyperextension
quadratus lumborum
origin: iliac crest & illiolumbar ligament

insertion: last rib and transverse processes of lumbar vertebrae

action: [together] depress ribs; [alone] laterally flex vertebral column
scalenes
origin: transverse and costal processes of C vertebrae

insertion: sup surfaces of 1st 2 ribs

action: elevates the ribs or flex neck
external intercostals
origin: inf border of each rib

insertion: sup border of more inf rib

action: elevate ribs
internal intercostals
origin: sup border of each rib

insertion: inf border of the preceding rib

action: depress ribs
transversus thoracis
origin: post surface of sternum

insertion: cartilages of ribs

action: depress ribs
serratus posterior (superior)
origin: spinous processes of C7-T3 and ligamentum nuchae

insertion: sup border of ribs 2-5 near angles

action: elevates ribs
serratus posterior (inferior)
origin: aponeurosis from spinous processes of T10-L3

insertion: inf border of ribs 8-12

action: pulls ribs inf/outward
external oblique
origin: ext and inf borders of ribs 5-12

insertion: linea alba and iliac crest

action: compresses abdomen
internal oblique
origin: thoracolumbar fascia and iliac crest

insertion: inf ribs, xiphoid process, and linea alba

action: compresses abd
transversus abdominis
origin: cartilages of ribs 6-12, iliac crest, and thoracolumbar fascia

insertion: linea alba and pubis

action: compresses abd