Neck

Question 0

What is the ansa cervicalis?

Answer 0

Loop of nerves that are part of the cervical plexus
Two roots make up ansa cervicalis
1. Superior root - brach of C1
2. Inferior root - C2, C3

Question 1

What nerve must be identified prior to ligating superior thyroid artery?

Answer 1

External laryngeal nerve

Question 2

Where does the submandibular duct open to?

Answer 2

Near the midline in the anterior aspect of the floor of the mouth

Question 3

What is the submandibular duct also known as?

Answer 3

Wharton’s duct (5cm)

Question 4

Common carotid artery

Answer 4

Origin: brachiocephalic trunk on the right, arch of aorta on the left
End: upper border of thyroid cartilage (C4)
Divides under SCM into internal and external carotid artery
Ascends within carotid sheath with
1. IJV laterally
2. Vagus nerve

Question 5

Cricothyroid muscle

Answer 5

Tension and elongation of vocal fold by drawing up the arch of the cricoid cartilage and tilting back the upper border of its lamina

Question 6

Tributaries of IJV

Answer 6

1. Facial vein
2. Pharyngeal vein
3. Lingual vein
4. Superior thyroid vein
5. Middle thyroid vein

Question 7

At level does the common carotid artery bifurcate?

Answer 7

Greater horn of the hyoid

Question 8

External jugular vein

Answer 8

Begins in the parotid gland
Passes obliquely across the surface of the SCM
Opens into subclavian vein