neck muscles, myology

Question 1

what is the o i for SCM?

Answer 1

manubrium and medial 1/2 of clavicle to mastoid process

Question 2

action of sterno-cleido mastoid?

Answer 2

head flexion, and unilaterally, side bendy and sontra rotation

Question 3

innervation of scm?

Answer 3

cn X! and ventral rami of c2 and c3

Question 4

scalenus anterior o i

Answer 4

anterior portion of transverse process of c3-c6, scalene tubercle of anterior surface of 1st rib

Question 5

action of scalenus anterior

Answer 5

laterally flex the c spine, access inspiration

Question 6

scalenus anterior n

Answer 6

ventral rami c4-c6

Question 7

scalenus medius i o

Answer 7

post tubercle of transverse process c2-c7 to superior surface of 1st rib behind subclavian groove

Question 8

scaleneus posterior i o

Answer 8

post tubercles of transverse process c4-c6 to lateral superior surface of 2nd rib

Question 9

action of both scalenus medius and scalenus posterior

Answer 9

laterally flex neck, rotate, elevate rib

Question 10

what two important structures pass between the anterior and middle scalenes?

Answer 10

brachial plexus and subclavian artery

Question 11

longus coli o i

Answer 11

bodies of c5-t3 to bodies of c2-c4 are linear, oblique fibers from bodies/transverse process of lower vertebrate to c5,c6 vertebrae (obique)

Question 12

longus coli action and n

Answer 12

bilaterally flexes cervical v, and side bend, c2-c6 ventral rami

Question 13

longus capitus

Answer 13

ant tubercles of transverse processes of c3-c6 to inferior surface of basilar portion of occipital bone

Question 14

action of longus capitus

Answer 14

flex skull, laterally sidebend

Question 15

rectus capitis anterior o, i a n

Answer 15

lateral mass of atlas, base of occipital bone anterior to occipital condyle, flexes head, anterior rami of c1,2

Question 16

rectus capitus lateralis o, i, a n

Answer 16

transverse process of the atlas, jugular process of the occipital bone, flexes stablizes, anterior rami c1, c2

Question 17

what does the lesser occipital nerve innervate

Answer 17

skin of neck and scalp posterior to ear (c2)

Question 18

what does the great auricular nerve innervate

Answer 18

parotid, mastoid, ear regions (c2/c3)

Question 19

what does the transverse cervical nerve innervate?

Answer 19

lateral and anterior neck, c2, c3

Question 20

what does the supraclavicular nerve innervate?

Answer 20

clavicle, shouldre rebion, c3, c4

Question 21

what is the ansa cervicis?

Answer 21

loop, c20c3, motor branches to infrahyoid– hypoglossal

Question 22

what doese the phrenic nerve come off of?

Answer 22

c3-5

Question 23

what are the four suprahyoids?

Answer 23

stylohyoid, digastric, geniohyoid, mylohyoid

Question 24

thyrohyoid, describe action

Answer 24

stablizes/depress hyoid, if hyoid is fixed it will enlarge the larynx ie for singing

Question 25

role and innervation of the infrahyoids

Answer 25

stablize the hyoid, ansacervisis, except thyrohyoid

Question 26

name the muscles involved in the posterior occipital triangle

Answer 26

rectus capitis posterior major, rectus capitis posterior minor, obliqus capitus sup, and inf

Question 27

rectus capitis posteiror major o i

Answer 27

spinos process of axis- lateral portion of inferior nuchal line (n suboccipital post ram c1)

Question 28

rectus capitus posterior minor o i

Answer 28

tubercle of the posterior arch of atlas- medial protion of inferior nuchal line (suboccipitla n, psot ram c1)

Question 29

obliqus capitis superior o i

Answer 29

transverse process atlas- occipital bone between superior and inferior nuchal lines (n suboccipital post ramus c1)

Question 30

obliqus capitus inferiro o i

Answer 30

spinous process axis - transverse process atals