Neck and Pharynx

Question 1

What structures run within the carotid sheath?

Answer 1

Internal jugular vein
Common carotid artery
Vagus nerve CN X

Question 2

Name the posterior part of pre-tracheal fascia?

Answer 2

Buccopharyngeal fascia

Question 3

Name the boundaries of the posterior triangle of the neck?

Answer 3

Posterior sternocleidomastoid
Middle 1/3 of clavicle
Anterior trapezius

Question 4

Where does CN XI - accessory nerve exit the cranium?

Answer 4

Jugular foreman

Question 5

What muscles does CN XI - accessory nerve supply motor innervation to?

Answer 5

Trapezius

Sternocleidomastoid

Question 6

Between which muscles are the roots of the brachial plexus found?

Answer 6

Anterior scalenous

Middle scalenous

Question 7

Which nerve travels obliquely over anterior scalenous?

Answer 7

Phrenic nerve

Question 8

Name the boundaries that make up the anterior triangle of the neck?

Answer 8

Middle line
Anterior sternocleidomastoid
Mandible

Question 9

Name the four supra-hyoid muscles?

Answer 9

Mylohyoid
Geniohyoid
Stylohyoid
Digastric - Anterior belly + Posterior belly

Question 10

What is the nerve innervation of mylohyoid?

Answer 10

Posterior branch of V3

Question 11

What is the nerve innervation of geniohyoid?

Answer 11

C1

Question 12

What is the nerve innervation of stylohyoid?

Answer 12

CN VII - Facial

Question 13

What is the nerve innervation of the anterior and posterior bellies of digastric?

Answer 13

Anterior belly (mandible) - V3
Posterior belly (mastoid) - CN VII - facial

Question 14

Name the four infra-hyoid (strap) muscles?

Answer 14

Omohyoid
Sternohyoid
Sternothyroid
Thyrohyoid

Question 15

Which of the four infra-hyoid muscles is not innervated by the Ansa cervicalis and what is its innervation?

Answer 15

Thyrhyoid

C1

Question 16

The submandibular gland wraps around which muscle?

Answer 16

Mylohyoid

Question 17

The submandibular duct loops around which nerve?

Answer 17

Lingual nerve - branch of posterior V3

Question 18

Which vertebral level does the bifurcation of the common carotid artery occur?

Answer 18

C3

Question 19

In relation to the common carotid, where is the internal jugular vein located?

Answer 19

Normally anterior and lateral to the CCA

Question 20

What two muscles are supplied with motor innervation by C1?

Answer 20

Geniohyoid (suprahyoid muscle)

Thyrohyoid (infrahyoid muscle)

Question 21

C1 hitches a lift on which nerve?

Answer 21

CN XII - Hypoglossus

Question 22

Where does CN X - Vagus exit the cranium?

Answer 22

Jugular foreman

Question 23

Describe how CN X - Vagus is sensory to the larynx?

Answer 23

Reccurant laryngeal branch is sensory to the infragotic cavity
External superior laryngeal branch is sensory to the supraglotic cavity and epiglottis

Question 24

Describe the sensory distribution of CN IX - glossopharyngeal?

Answer 24

Posterior 1/3 of the tongue
Pharynx
Inner surface of the tympanic membrane

Question 25

Which muscle receives motor innervation from CN IX - glossopharyngeal?

Answer 25

Stylopharyngeus

Question 26

CN XII - Hypoglossus is motor to all the extrinsic muscles of the tongue except, and what is its innervation?

Answer 26

Palatoglossus - CN - X

Question 27

Which three muscles elevate the pharynx, and what is their motor innervation?

Answer 27

Stylopharygeus - CN IX - glossopharygeal
Palatopharyngeus - CN X - vagus
Salpingopharyngeus - CN X - vagus

Question 28

Which of the three constrictor muscles is attached to the pterygomandibular raphe?

Answer 28

Superior constrictor