Blue Boxes: Face and Superficial Scalp and deep face (they overlap)

Question 1

Given that the face has no distinct deep fascia and the subcutaneous tissue between the attachments of the muscles is loose, what tends to happen to facial lacerations?

Answer 1

They gape, and have to be sutured carefully so that scarring does not result

Question 2

What are sebaceous cysts?

Answer 2

Ducts of the sebaceous glands become infected and result in the retention of secretion and the formation of a cyst

Question 3

What is a cephalohematoma?

Answer 3

Bleeding that occurs between an infants pericranium and calvaria over the parietal bone, causing a hematoma

happens after a difficult birth

Question 4

How are the following blocks achieved?

1. Inferior alveolar block
2. Mental and Incisive nerve block
3. Buccal nerve block

Answer 4

1. Can inject on the inside of the mouth going up into the roots of the teeth on the lateral sides of the gums
2. Can go into the chin near the mental foramen to block the mental nerve
3. inject into the mucosa that is covering the retromolwar fossa posterior to the 3rd mandibular color between the anterior border of the rams and the temporal crest

Question 5

Describe squamous cell carcinoma of the lip

Answer 5

Typically occurs on the bottom lip from sun exposure; the cells can spread into the mouth and into submental and the submandibular glands

Question 6

Where do most of the salivary gland cancers begin?

Answer 6

In the parotid gland

Question 7

During the surgical procedure of a parotidectomy, what must be identified so that it is not damaged? Following the surgery, discuss the structure of the patients face

Answer 7

The facial nerve is embedded in the gland, and must be located and saved

After the surgery, the patients facial structure will change because the parotid gland has a lot of contribution to the shape of the face

Question 8

What is sialography of the parotid duct?

Answer 8

A radiopaque fluid can be injected into the duct system of the parotid gland through a cannula and then you can use radiography to see which portions of the duct is wonky

Question 9

Describe blockage of the parotid duct

Answer 9

Due to a calcification deposit

Pain results with eating, especially sour things, because saliva cannot be made because of the blockage of the duct

Question 10

If there was an accessory parotid gland, where would it be?

Answer 10

Lies on the messier muscle between the parotid duct and the zygomatic arch

Question 11

How would you administer a mandibular nerve block?

Answer 11

anesthetic is injected near the mandibular nerve where it enters the infratemporal fossa; anesthetizes the branches of V3

Question 12

Describe a dislocation of the TMJ

Answer 12

Excessive contraction of the lateral pterygoids may cause the heads of the mandible to dislocate anteriorly; the person is unable to close their mouth

Question 13

Why is a posterior dislocation of the TMJ rare?

Answer 13

Because of the presence of the postglenoid tubercle and the strength of the intrinsic lateral movement

Question 14

In arthritis of the TMJ, there is a clicking noise sometimes; what is thought to be the cause of this clicking noise?

Answer 14

Result of delayed anterior disc movements during mandibular depression and elevation