Infection

Question 1

Where can infection spread?

Answer 1

Direct:muscle and fascial planes on path of least resistance

lymphatics:
veins: CST

Question 2

WHat is CST?

Answer 2

formation of blood clot in CS which is a cavity in the back of the brain which drains deoxygenated blood back to the heart via the petrosal sinuses to internal jug

Question 3

Which organisms are usually implicated in CST?

Answer 3

staph aurues and strep

Question 4

What are the symtomsof CST?

Answer 4

descresed vision, droping and bulgind eyelids, heaaches paralysis of CN 3, 4, V1, V2 and 6

Question 5

Which structures drain to the submental lymoh node?

Answer 5

incisor teeth
tip of tongue
floor of mouth
central part of lower lip

Question 6

Which structures drain into the SM LN?

Answer 6

Lymph from upper ad lower teeh
cheeck
upper lip
lower lateral lip
anterior 2 thruds of tongue
Posterior FOM

Question 7

Which structures drain to the jugulo diagastric LN?

Answer 7

Posteruor teeth
hard and soft palate
posterior third tongue

Question 8

T/F cellulitis type infection contains puss?

Answer 8

F

Question 9

Which roots carry biggest risk of infection into Caverbous sinus?

Answer 9

upper threes

Question 10

What are the possible routes of spread for an infection?

Answer 10

Abscess can cause

1. Bacteraemia leading to IE or Septcaemia which causes death
2. Osteomyelitis
3. Chronic or acute and drain
4. Acute infection or cellulitis which can then spread along tissue planes and obstruct airway