OINAs- Anterolateral Neck

Question 1

muscles of anterior neck (2)

Answer 1

-platysma
-sternocleidomastoid

Question 2

platysma OINA

Answer 2

O: skin over neck + upper thorax

I: mandible

N: facial nerve

A: depresses skin of lower face + mouth, tenses skin of the neck

Question 3

platysma ORIGIN

Answer 3

skin over neck + upper thorax

Question 4

platysma INSERTION

Answer 4

mandible

Question 5

platysma NERVE SUPPLY

Answer 5

facial nerve

Question 6

platysma ACTION

Answer 6

depresses skin of lower face + mouth, tenses skin of the neck

Question 7

sternocleidomastoid OINA

Answer 7

O: sternum + clavicle

I: mastoid process + nuchal line

N: spinal accessory nerve

A:
B- extension of the head
U- lateral flexion (same side) + rotation (opposite side) of the head

Question 8

sternocleidomastoid ORIGIN

Answer 8

sternum + clavicle

Question 9

sternocleidomastoid INSERTION

Answer 9

mastoid process + nuchal line

Question 10

sternocleidomastoid NERVE SUPPLY

Answer 10

spinal accessory nerve

Question 11

sternocleidomastoid ACTION

Answer 11

B- extension of the head

U- lateral flexion (same side) + rotation (opposite side) of the head

Question 12

muscles of lateral neck (3)

Answer 12

anterior, middle, + posterior scalene

Question 13

anterior scalene OINA

Answer 13

O: transverse process C3-6

I: rib 1

N: cervical + brachial plexus

A:
origin fixed- rise upper ribs
insertion fixed- B, flexion of the neck; U, lateral flexion of the neck (same side)

Question 14

anterior scalene ORIGIN

Answer 14

transverse process C3-6

Question 15

anterior scalene INSERTION

Answer 15

rib 1

(same as middle scalene)

Question 16

anterior scalene NERVE SUPPLY

Answer 16

cervical + brachial plexus

(same as middle + posterior scalenes)

Question 17

anterior scalene ACTION

Answer 17

origin fixed- rise upper ribs

insertion fixed- B, flexion of the neck; U, lateral flexion of the neck (same side)

(same as middle + posterior scalenes)

Question 18

middle scalene OINA

Answer 18

O: transverse process C3-7

I: rib 1

N: cervical + brachial plexus

A:
origin fixed- rise upper ribs
insertion fixed- B, flexion of the neck; U, lateral flexion of the neck (same side)

Question 19

middle scalene ORIGIN

Answer 19

transverse process C3-7

Question 20

middle scalene INSERTION

Answer 20

rib 1

(same as anterior scalene)

Question 21

middle scalene NERVE SUPPLY

Answer 21

cervical + brachial plexus

(same as anterior + posterior scalenes)

Question 22

middle scalene ACTION

Answer 22

origin fixed- rise upper ribs

insertion fixed- B, flexion of the neck; U, lateral flexion of the neck (same side)

(same as anterior + posterior scalenes)

Question 23

posterior scalene OINA

Answer 23

O: transverse process C5-7

I: rib 2

N: cervical + brachial plexus

A:
origin fixed- rise upper ribs
insertion fixed- B, flexion of the neck; U, lateral flexion of the neck (same side)

Question 24

posterior scalene ORIGIN

Answer 24

transverse process C5-7

Question 25

posterior scalene NERVE SUPPLY

Answer 25

cervical + brachial plexus | (same as anterior + middle scalenes)

Question 26

posterior scalene INSERTION

Answer 26

rib 2

Question 27

posterior scalene ACTION

Answer 27

origin fixed- rise upper ribs insertion fixed- B, flexion of the neck; U, lateral flexion of the neck (same side) | (same as anterior + middle scalenes)