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Flashcards in Neck Deck (36):
1

What vertebral level is the thyroid cartilage located at

C4-5

2

What vertebral level is the hyoid bone at

C3

3

What vertebral level is the cricoid cartilage at

C6

4

What vertebral level does the trachea begin at

Below C6

5

What nerves innervate the skin of the neck

Primarily the C2,3,4 spinal nerves

6

What is significant about the C2 spinal nerve dermatome

It covers the angle of the mandible, and is the only spinal nerve to innervate the face

7

What nerve innervates the majority of the skin of the face

Cranial nerve V (trigeminal nerve)

8

What is the origin of the platysma

Fascia and skin of deltoid and pectoral regions

9

What is the insertion of the platysma

Mandible and tissues around the mouth

10

What is the innervation of the platysma

Cranial nerve VII (facial nerve)

11

What are the borders of the anterior triangle

SCM- posterior
Inferior border of the mandible- superior
Midline of the anterior neck- anterior

12

What are the borders of the posterior triangle of the neck

Clavicle- inferior
SCM- anterior
Trapezius- posterior

13

What is the origin of the SCM

Sternal head: sternum
Clavicular head: clavicle

14

What is the origin of the SCM

Mastoid process, occiput

15

What is the innervation of the SCM

Cranial nerve XI (spinal accessory) -- motor
VPR C2,3 spinal nerve -- sensory

16

What is the action of SCM

Unilateral-- ipsilateral flexion and contralateral rotation of neck and head
Bilateral-- flexion of neck and extension of head

17

What are borders of the submandibular triangle

Posterior belly of digastric
Anterior belly of digastric
Body of mandible

18

What are the contents of the submandibular triangle

Submandibular gland
Facial artery and vein

19

What are the borders of submental triangle

Hyoid bone
Anterior bellies of digastric m
Skin of anterior neck

20

What are the borders of the carotid triangle

Posterior belly of digastric
SCM
Superior belly of omohyoid

21

What are the contents of the carotid triangle

Common carotid artery and bifurcation
Internal jugular vein
Cranial nerve X (vagus nerve)

22

What are the borders of the muscular triangle

Superior belly of omohyoid
SCM
Anterior midline of neck

23

What are the contents of the muscular triangle

Infrahyoid mm
Thyroid gland
Larynx

24

What are the borders of the supraclavicular triangle

Inferior belly of omohyoid
Clavicle
SCM

25

What are the borders of the occipital triangle

Trapezoid
SCM
inferior belly omohyoid

26

What are the contents of the occipital triangle

Cranial nerve XI
several cutaneous nerves from cervical plexus

27

What is the cervical plexus formed by

Ventral rami of C1-4

28

What nerve is formed by ventral rami of C2

Lesser occipital nerve

29

What does the lesser occipital nerve innervate

Skin of posterior scalp behind the ear

30

What nerve is made from the fibers of ventral rami of C2-3

Great auricular nerve

31

What does the great auricular nerve innervate

Sensory innervation to skin below and anterior to external ear and part of errand skin over angle of mandible

32

What nerves is the transverse cervical nerve derived from

Ventral rami of C2-3

33

What is nerve is made from C3-4 ventral rami

Supraclavicular nerves

34

What does the supraclavicular nerve innervate

Innervates the skin of the base of neck, upper thorax, and top of shoulder

35

Which nerves hitchhike on Cranial nerve XI

C2,3,4

36

Which nerve sometimes hitchhikes with cranial nerve XII

C1