Ear

Question 1

What is the name of the elevated margin of the auricle?

Answer 1

Helix

Question 2

What does the lobule consist of?

Answer 2

Fibrous tissue, fat and blood-vessles

Question 3

Tragus

Answer 3

Overlaps the opening of the external acoustic meatus

Question 4

The main arterial supply to the auricle:

Answer 4

• Posterior auricular arteries

- Superficial temporal arteries

Question 5

The main nerves of the skin of the auricle:

Answer 5

• Great auricular nerves

- Auriculotemporal nerves

Question 6

What does the auriculotemporal nerve (branch of CN V3) supply? (auricle)

Answer 6

Supplies the skin of the auricle anterior to the external acoustic meatus.

Question 7

What does the great auricular nerve supply? (auricle)

Answer 7

The cranial (medial) surface (back of the ear) and the posterior part (helix, antihelix, and lobule) of the lateral surface (fron of the ear).

Question 8

Lymphatic drainage of the auricle:

Answer 8

• The lateral surface of the superior half of the auricle drains to the SUPERFICIAL PAROTID LYMPH NODES.
• The cranial surface of the superior half of the auricledrains to the MASTOID LYMPH NODES and DEEP CERVICAL LYMPH NODES.
• The remainder of the auricle, including the lobule, drains into the SUPERFICIAL CERVICAL LYMPH NODES.

Question 9

What is the deepest depression of the auricle?

Answer 9

The concha of auricle