Muscles Of The Neck

Question 1

What is the OIA for middle scalene?

Answer 1

O: posterior tubercle of transverse process of c2-c7 I: superior surface of first rib A: flex neck laterally, elevate first rib.

Question 2

What is the OIA for Posterior scalene?

Answer 2

O: posterior tubercle of Tp C5-C7 I: external border of 2nd rib A: flex neck laterally, elevate 2nd rib

Question 3

Mylohyoid OIA

Answer 3

O:Mylohyoid line of mandible I:Body of hyoid A:Elevates hyoid and floor of mouth.

Question 4

Geniohyoid OIA

Answer 4

O: inferior mental spine of mandible I: body of hyoid A: pulls hyoid anterior and superior.

Question 5

Stylohyoid OIA

Answer 5

O: Styloid process of the temporal bone I: Body of hyoid A: move hyoid during speaking and swallowing

Question 6

Digastric OIA

Answer 6

Anterior belly: digastric fossa of mandible Posterior belly:mastoid notch of temporal bone Insertion: central tendon of hyoid Action: move hyoid while speaking and swallowing

Question 7

What is the OIA for anterior scalene?

Answer 7

O: anterior tubercles of TP of C3-C6

I: 1st rib

A: Flex neck, side bending

Question 8

What is the OIA for the Platysma?

Answer 8

O: Inferior border of mandible, skin, and subcutaneous tissue of the lower face. I: fascia covering superior part of pectorals major and deltoid. A: draws corners of mouth inferiorly and laterally (frowny face). Also, draws skin of the neck superiorly when teeth are clenched.

Question 9

What is the innervation of the Platysma?

Answer 9

cervical branch of the facial nerve. CN 8.

Question 10

Sternocleidomastoid OI?

Answer 10

O (S): Mastoid process, and lateral half of superior nuchal line. I (D): Manubrium of sternum and medial 1/3 of clavicle.

Question 11

Action of SCM?

Answer 11

A: Unilateral contraction causes lateral flexion of the neck, and rotates head so that face is is turned superiorly toward opposite side. Bilateral contraction cases extension at alanto-occipital joint and flexion at cervical vertebrae.

Question 12

Innervation of Mylohyoid?

Answer 12

Nerve to the mylohyoid, a branch of the inferior alveolar nerve which comes from the mandibular nerve (V3).

Question 13

Innervation of the Geniohyoid?

Answer 13

C1 vetral Rami, via hypoglossal nerve (CN 12)

Question 14

Stylohyoid innervation?

Answer 14

Stylohyoid branch of the facial nerve. (CN 7)

Question 15

Innervation of the digastric?

Answer 15

Anterior belly: Nerve to the mylohyoid, which is a branch of the inferior alveolar nerve. Posterior belly: Digastric branch of the facial nerve

Question 16

OIAN Sternohyoid

Answer 16

O: Manubrium of sternum and medial end of clavicle. I: Body of Hyoid A: Move hyoid when speaking and swallowing N: C1-C3 via ansa cervicalis

Question 17

OIAN Omohyoid

Answer 17

O: Superior Border of scapula near supra scapular notch I: inferior border of the hyoid A: Move Hyoid when speaking and swallowing N: C1-C3 via ansa cervicalis

Question 18

OIAN Sternohyoid

Answer 18

O: Posterior surface of the manubrium I: oblique line of thyroid cartilage A: depresses hyoid and larynx N: C2, C3 via ansa cervicalis

Question 19

OIAN Thyrohyoid

Answer 19

O: thyroid cartilage I: Inferior border of Hyoid A: Depresses hyoid and larynx N: C1 ventral ramus via hypoglossal nerve (CN 12)

Question 20

Innervation of Posterior scalene?

Answer 20

anterior rami of cervical spinal nerves C7-C8 (segmental)

Question 21

Innervation of Middle scalene?

Answer 21

anterior rami of cervical spinal nerves (segmental)

Question 22

Innervation of Anterior scalene?

Answer 22

anterior rami of cervical spinal nerves (segmental)

Question 23

What are the five things inside of the carotid sheeth?

Answer 23

internal Jugular vein

common carotid

Cranial nerve x

cervical lymph nodes

sympathetic nerve fibers?