Muscles of the Neck

OINA :) by erika.
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PLATYSMA- ORIGIN
deep fascia over pectoralis minor and deltoid
PLATYSMA-INSERTION
Body of mandible
PLATYSMA-INNERVATION
facial nerve
PLATYSMA-ACTION
depresses mandible and angle of mouth
SCM- ORIGIN
manubrium sterni and medial third of clavicle
SCM- INSERTION
mastoid process
SCM-INNERVATION
spinal part of accessory nerve c2 and c3
POSTERIOR BELLY OF DIGASTRIC-ORIGIN
mastoid process
POSTERIOR BELLY OF DIGASTRIC-INNERVATION
facial nerve
POSTERIOR BELLY OF DIGASTRIC- ACTION
depresses mandible and elevates gyoid
ANTERIOR BELLY OF DIGASTRIC-ORIGIN
body of mandible
ANTERIOR BELLY OF DIGASTRIC INNERVATION
nerve to mylohyoid
STYLOHYOID- ORIGIN
styloid process
STYLOHYOID- INSERTION
body of hyoid
STYLOHYOID- INNERVATION
facial nerve
STYLOHYOID- ACTION
elevates hyoid
MYLOHYOID- ORIGIN
mylohyoid line of body of mandible
MYLOHYOID-INSERTION
body of hyoid and fibrous raphe
MYLOHYOID- INNERVATION
inferior alveolar nerve
MYLOHYOID-ACTION
elevates hyoid and depresses mandible
GENIOHYOID-ORIGIN
spine of mandible
GENIOHYOID-INSERTION
body of hyoid
GENIOHYOID-INNERVATION
C1
GENIOHYIOD- ACTION
elevates hyoid and depresses mandible
STERNOHYOID-ORIGIN
manubrium sterni and clavicle
STERNOHYOID-INSERTION
body of hyoid
STERNOHYOID-INNERVATION
ansa cervicalis c1, 2, 3
STERNOHYOID-ACTION
depresses hyoid
STERNOTHYROID-ORIGIN
manubrium sterni
STERNOTHYROID-INSERTION
oblique line on lamina of thyroid cartilage
STERNOTHYROID-INNERVATION
ansa cervicalis c1, 2, 3
STERNOTHYROID-ACTION
depresses larynx
THYROHYOID- ORIGIN
oblique line on lamina of thyroid cartilage
THYROHYOID- INSERTION
body of hyoid
THYROHYOID- INNERVATION
C1
OMOHYOID (INFERIOR BELLY)- ORIGIN
upper margin of scapula and subscapular ligament
OMOHYOID (INFERIOR BELLY)-INSERTION
intermediate tendon is held to clavicle and first rib by fascial sling
OMOHYOID (INFERIOR BELLY)- INNERVATION
ansa cervicalis C1,2,3
OMOHYOID (INFERIOR BELLY)-action
depresses hyoid
OMOHYOID (SUPERIOR BELLY)
BODY OF HYOID
SCALENIUS ANTERIOR-ORIGIN
Transverse process of 3rd, 4th, 5th, cervical vertebra
SCALENIUS ANTERIOR- INSERTION
first rib
SCALENIUS ANTERIOR- INNERVATION
c4, c5, c6
SCALENIUS ANTERIOR- ACTION
elevates first rib and laterally flexes and rorates cervical part of vertebral column
SCALENIUS MEDIUS- ORIGIN
transverse process of upper 6 cervical vertebrea
SCALENIUS MEDIUS- INSERTION
fisrt rib
SCALENIUS MEDIUS- INNERVATION
anterior rami of cervical nerves
SCALENIUS POSTERIOR-ORIGIN
transverse process of lower cervical vertebrae
SCALENIUS POSTERIOR-INSERTION
second rib
SCALENIUS POSTERIOR- INNERVATION
anterior rami of cervical nerves
SCALENIUS POSTERIOR-ACTION
elevates second rib
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