Question 1

All the following are TRUE concerning the cervical plexus EXCEPT:

Accepted Answer

C

Question 2

The longus colli muscle functions in:

Accepted Answer

The longus colli muscle is primarily involved in the flexion of the neck, helping to bend the neck forward.

Question 3

The vagus nerve travels through which foramen?

Accepted Answer

The vagus nerve (cranial nerve X) exits the skull through the jugular foramen.

Question 4

Which of the following muscles is NOT attached to the mandible?

Accepted Answer

The anterior scalene muscle is not attached to the mandible. It originates from the transverse processes of the cervical vertebrae and inserts onto the first rib, playing a role in neck flexion and aiding in respiration. The other muscles listed (digastric, geniohyoid, masseter, and mylohyoid) are all attached to the mandible and are involved in various functions including mastication and movements of the mandible.

Question 5

Which of the following arteries is NOT a branch of the external carotid artery?

Accepted Answer

The vertebral artery is not a branch of the external carotid artery; it originates from the subclavian artery.

Question 6

Which of the following muscles are capable of depressing the eye, starting from the neutral, straight ahead position?

Accepted Answer

The superior oblique and inferior rectus muscles are capable of depressing the eye from a neutral, straight ahead position. The superior oblique muscle acts by intorting and depressing the eye, especially when it is adducted, while the inferior rectus primarily depresses, adducts, and helps in extorsion of the eye.

Question 7

Beginning superficially the fourth layer of the scalp is known as the:

Accepted Answer

The answer of Beginning superficially the fourth layer of the...

Question 8

Which of the following arteries does NOT arise from the maxillary artery?

Accepted Answer

The answer of Which of the following arteries does NOT...

Question 9

The left common carotid artery is a branch of the:

Accepted Answer

The left common carotid artery branches directly from the arch of the aorta.

Question 10

The medial pterygoid muscle is innervated by which nerve?

Accepted Answer

The medial pterygoid muscle is innervated by the mandibular division of the trigeminal nerve (cranial nerve V3).

Question 11

The opening of the frontal sinus (infundibulum) is usually located in the:

Accepted Answer

The opening of the frontal sinus (infundibulum) is usually located in the middle meatus.

Question 12

The paranasal sinuses do NOT include the air-filled spaces within which bone?

Accepted Answer

The parietal bone does not contain air-filled spaces known as paranasal sinuses. The paranasal sinuses are located in the ethmoid, frontal, maxilla, and sphenoid bones.

Question 13

The carotid sheath contains which vein?

Accepted Answer

The carotid sheath contains the internal jugular vein, along with the common carotid artery and the vagus nerve.

Question 14

Which of the following statements about the subclavian artery is INCORRECT?

Accepted Answer

The right subclavian artery does not branch directly from the aortic arch. Instead, it originates from the brachiocephalic trunk (artery), which is the vessel that directly branches from the aortic arch. The left subclavian artery, however, does branch directly from the aortic arch.

Question 15

Which of the following openings is found in the base of the skull?

Accepted Answer

The foramen spinosum is an opening in the base of the skull, specifically in the sphenoid bone, which allows for the passage of the middle meningeal artery, vein, and the meningeal branch of the mandibular nerve.

Question 16

Which of the following is NOT associated with the infratemporal fossa?

Accepted Answer

The masseter muscle is not located in the infratemporal fossa; it is a facial muscle that plays a role in mastication and is positioned on the outside of the jaw, unlike the other structures listed which are associated with the infratemporal fossa.

Question 17

At the base of the neck which of the following structures lies anterior to the anterior scalene muscle?

Accepted Answer

The subclavian vein is located anterior to the anterior scalene muscle at the base of the neck.

Question 18

Which of the following muscles is innervated by the facial nerve?

Accepted Answer

The stylohyoid muscle is innervated by the facial nerve (cranial nerve VII). The other muscles listed are innervated by different cranial or cervical nerves.

Question 19

The blood supply to the thyroid gland is from arterial branches from which trunk and from which artery?

Accepted Answer

The thyroid gland receives its blood supply from the superior thyroid artery, which is a branch of the external carotid artery, and the inferior thyroid artery, which is a branch of the thyrocervical trunk.

Question 20

The internal jugular vein is found within which triangle of the neck?

Accepted Answer

The internal jugular vein is a major blood vessel that runs down the neck, and it is located within the carotid triangle of the neck. This triangle is defined by the sternocleidomastoid muscle, the superior belly of the omohyoid muscle, and the posterior belly of the digastric muscle.

Quiz 1: Head and Neck