Neck Infections

Question 1

What is the cervical pLexus

Answer 1

The intertwining of the anterior rami c2,3,4
Sensory to the skin and fascia of the neck shoulder face and angle of mandible
The nerves of the cervical plexus
- greater auricular c2,3 passes over scm and to ear
- transverse cervical c2,3 along the belly of scm
- lesser occipital c2 to occipital bone
- supraclavicular c3,4 down over clavicle which has 3 terminal branches medial, intermediate and lateral

Question 2

What so the point where the cervical plexus pierces the deep fascia

Answer 2

The nerve point

Question 3

What are the platysma muscles

Answer 3

Muscles of facial expression supplied by the cranial nerve 12

Question 4

What cranial nerve supplies the scm

Answer 4

11

Question 5

What are the 3 types of deep fascia

Answer 5

Investing
Oretracheal
Prevertebrak

Question 6

Describe investing layer

Answer 6

Encapsulates trapezius and scm surrounds entire neck
Encloses submandibular and parotid salivary glands
Attaches to hyoid bone lower mandible

Question 7

Describe the pretracheal layer

Answer 7

Surrounds thyroid trachea and oes

There is visceral and muscular

Question 8

Describe the prevertebral

Answer 8

Encloses postural muscles and cervical vertebrae

Carotid sheaths - tubular fascia bandages, lie between pretracheal and prevertebral

Question 9

What is the buccooharyngeal fascia

Answer 9

Layer continuos with pretracheal fascia inferiorly

Question 10

What is the space between the prevertebral and buccooharyngeal fascia

Answer 10

Retrophartngeal fascia

Question 11

What is the epithelium for the skin

Answer 11

Keratinised stratified squamous epithelium