Facial trauma Flashcards Preview

MD4001 Pathology > Facial trauma > Flashcards

Flashcards in Facial trauma Deck (18):
1

what veins drain to the cavernous sinus and so contribute to the danger triangle

supratrochlear and supraorbital

2

what nerve travels through the mental foramen

inferior alveolar nerve from V3

3

what does a fracture of the maxilla or zygoma cause

lateral wall of nose or lower eyelid numbness

due to damage to the infraorbital nerve V2

4

what is erb's point

found along the anterior border of stenocleidomastoid

5

how can we anaesthetise large areas of the face

nerve blocks with local anaesthetics (look for foramen)

6

why is cranial nerve 7 more superficial in children

due to development of the mastoid and styloid

7

where is the buccal branch of cn 7 found

parotid duct

8

what facial muscle is most succeptible to injury

depressor anguli oris

9

what layer is the neurovascular bundle of the scalp found in

connective tissue (subcutaneous)

can bleed out

10

what should you do in an injury to the ear or nose

skin is tightly bound to underlying cartilage
you should make sure that cartilage is not left exposed

11

what cartilage would you use to reconstruct the ear

costal

12

what is a laceration

an injury caused by a blow or crushing force

13

what should you do when identifying a dental injury

look for loose teeth which could be aspirated to right lung

14

describe fractures to the mandible

usually bilateral

commonly sub condylar, or angle, body or parasymphysis

15

what might be the effect of a zygoma fracture or orbit fracture

numbness in upper lip and cheek

epistaxis

periorbital haematoma
zygomatic arch can fracture

16

why might a patient not be able to open the jaw in a zygomatic arch fracture

coronoid process is below it so can't open jaw

17

what is an orbital blow out fracture

bone fractures at teh back of the orbit
intraorbital pressure increases

18

what is the effect of a nasoethmoidal fracture

nasal bulb lost
pig snout deformity