Neck Anatomy

Question 1

The vertebral compartment of the neck contains what structures?

Answer 1

Cervical Vertebrae and Postural Muscles

Question 2

The vascular compartment of the neck contains what structures?

Answer 2

Major blood vessels and the vagus nerve

Question 3

The visceral compartment of the neck contains what structures?

Answer 3

Thyroid, parathyroid, pharynx, larynx, trachea and oesophagus

Question 4

List the boundaries of the anterior triangle of the neck

Answer 4

Superiorly - inferior border of the mandible, Posteriorly - Anterior border of SCM, Anteriorly - midline of the neck from chin to the jugular notch

Question 5

List the boundaries of the posterior triangle of the neck

Answer 5

Anteriorly - posterior border of SCM, Posteriorly - anterior border of the trapezius, Inferiorly - middle 1/3 of the clavicle

Question 6

What are the attachments of the SCM?

Answer 6

Sternum, clavicle and mastoid bone

Question 7

What are the actions of the trapezius muscle ?

Answer 7

rotate and retract scapula, extend the neck, elevate and depress the scapula

Question 8

What are the boundaries of the submental triangle?

Answer 8

Inferior - hyoid bone, Medial - midline of the neck, Lateral - anterior belly of the digastric muscle

Question 9

What are the boundaries of the digastric triangle?

Answer 9

Superiorly - body of the mandible, Anteriorly - anterior belly of the digastric muscle, Posteriorly - posterior belly of the digastric muscle

Question 10

What artery lies within the digastric triangle?

Answer 10

Facial

Question 11

What are the boundaries of the carotid triangle?

Answer 11

Superior - posterior belly of the digastric, lateral - medial border of the SCM, Inferior - superior belly of the omohyoid muscle

Question 12

What are the boundaries of the muscular triangle?

Answer 12

Superiorly - hyoid bone, medially - midline of the neck, superolateral - superior belly of the omohyoid muscle, inferolateral - inferior portion of the SCM

Question 13

The CCA is a branch of which arteries?

Answer 13

Brachiocephalic trunk (right side) and the Arch of Aorta (left side)

Question 14

What lies within the carotid sheath?

Answer 14

The CCA, IJV and Vagus Nerve

Question 15

What are the two terminal branches of the ECA given off in the face?

Answer 15

The maxillary and superficial temporal artery

Question 16

What does the jugular venous sinus drain?

Answer 16

The brain

Question 17

The IJV and subclavian merge to form what ?

Answer 17

The brachiocephalic vein

Question 18

Which muscles are attached to the hyoid bone?

Answer 18

Suprahyoid, infrahyoid muscles, hyoglossus and genioglossus, middle pharyngeal constrictor

Question 19

What muscles make up the suprahyoid muscles?

Answer 19

Mylohyoid, geniohyoid, digastric and stylohyoid

Question 20

What nerve supplies they mylohyoid?

Answer 20

Inferior alveolar nerve

Question 21

What nerve supplies the geniohyoid?

Answer 21

C1 within the hypoglossal nerve

Question 22

The digastric muscle is innervated by which nerves?

Answer 22

The inferior alveolar and the facial nerve

Question 23

The stylohyoid is innervated by which nerve?

Answer 23

Facial nerve

Question 24

The infrahyoid muscle group is made up of what muscles?

Answer 24

Sternohyoid, sternothyroid, thyrohyoid and omohyoid muscles

Question 25

The sternohyoid, sternothyroid and omohyoid is innervated by which nerves?

Answer 25

The anterior rami of C1-C3

Question 26

The thyrohyoid is innervated by which nerve?

Answer 26

C1

Question 27

What is the ansa cervicalis ?

Answer 27

Loop of nerves within the cervical plexus