Lecture 19: Cross Sections

Question 1

What is the location of bifurcation of Common Carotid?

Answer 1

C3 (60%)

Range between C2- C5

Always above hyoid cartilage.

Question 2

What is important to understand when looking at planes?

Answer 2

1) Variation exists

2) Landmarks are distorted during procedures, esp if positioning devices are used.

Question 3

Below hyoid bone
2 Sheet of muscles

79

Answer 3

Intrahyoid muscle

Superficial one: Sternohyoid
Deeper: ______

Sides: Sternocleiomastoid

Arteries: Common carotid

Middle (lighter): If below C6: trachea, if above ____
Middle (dark): Spinal cord

Question 4

Slide 71

Answer 4

Two side structures: Submandibular gland

Marginal mandibular nerve sits below this

Surface marking:

What nerve sits deep to this? Hypoglossal and lingual nerve
-Damage:

Question 5

66

Answer 5

V shaped muscle: Mylohyloid
Middle of this: Genuoglossal

Submandibular gland is wrapping around the msucle

Question 6

35

Answer 6

Two “eyes’

-vertebral arteries

Question 7

71

Answer 7

External and inernal cartoid arteries

Question 8

60

Answer 8

Parotid gland

-warps around the ramus of the manible