Neck

Question 0

What is the sternocleidomastoid superior attachment?

Answer 0

Lateral surface of mastoid process of temporal bone and lateral half of superior nuchal line

Question 1

Where is the sternocleidomastoid inferior attachment?

Answer 1

Sternal head:anterior surface of manubrium of sternum

Clavicular head:superior surface of medial third of clavicle

Question 2

What is the innervation of the sternocleidomastoid?

Answer 2

Spinal accessory nerve XI, C2, C3 (pain and proprioception)

Question 3

What is the action of the sternocleidomastoid?

Answer 3

Laterally flex neck, extends neck, flex cervical vertebrae

Question 4

What is the origin of the anterior scalene?

Answer 4

Anterior tubercles of transverse processes of C3-C6

Question 5

What is the insertion of the anterior scalene?

Answer 5

1st rib

Question 6

What is the innervation of the anterior scalene?

Answer 6

Cervical spinal nerves C4-C6

Question 7

What are the main actions of the anterior scalene?

Answer 7

Flex neck laterally, elevate rib during forced inspiration

Question 8

Phrenic nerve?

Answer 8

C3,C4,C5 keep the man alive

Question 9

What is the origin of the middle scalene?

Answer 9

Posterior tubercles of transverse processes of C4-C7

Question 10

What is the insertion of the middle scalene?

Answer 10

Superior surface 1st rib, posterior to groove for subclavian artery

Question 11

What is the innervation for the middle scalene?

Answer 11

Anterior rami of cervical spinal nerves

Question 12

What is the main actions of the middle scalene?

Answer 12

Flexes neck laterally, elevate 1st rib during forced inspiration

Question 13

What is the origin of the posterior scalene?

Answer 13

Posterior tubercles of transverse processes of C4-C6

Question 14

What is the insertion of the posterior scalene?

Answer 14

External border of 2nd rib

Question 15

What is the innervation of the posterior scalene?

Answer 15

Anterior rami of cervical spinal nerves C7 and C8

Question 16

What are the posterior scalene main actions?

Answer 16

Flexes neck laterally, elevates 2nd rib during forced inspiration

Question 17

What is the anterior portion of the lateral cervical triangle?

Answer 17

posterior border of SCM

Question 18

What is the posterior portion of the lateral cervical triangle?

Answer 18

anterior border of trapezius

Question 19

What is the superior portion of the lateral cervical triangle?

Answer 19

merging of SCM and trapezius

Question 20

What is the inferior portion of the lateral cervical triangle?

Answer 20

clavicle (between SCM and trapezius)

Question 21

What is roof of the lateral cervical triangle?

Answer 21

investing layer of deep cervical fascia; platysma

Question 22

What is the floor of the lateral cervical triangle?

Answer 22

muscles covered by prevertebral layer of deep cervical fascia