Triangles of Neck Flashcards
1
Q
Sternocleidomastoid M attachments, innervation, actions
A
2
Q
Posterior triangle boundaries
A
•Boundaries:
–SCM, trapezius, clavicle
•Floor: MM covered by prevertebral layer of deep cervical fascia
3
Q
Posterior traingle contents
A
•Contents:
–Cervical plexus (C1-C4)
–CN XI
–Trunks of brachial plexus
–Phrenic N
–Transverse cervical A/V
–External jugular V
–Subclavian A/V
–Inf. belly of omohyoid M
4
Q
Cervical plexus
A
5
Q
A
6
Q
Anterior triangle boundaries and subdivisons
A
7
Q
Submental triangle boundaries and contents
A
8
Q
Digastric triangle boundaries and contents
A
9
Q
Carotid triangle boundaries and contents
A
10
Q
A
11
Q
Hyoid bone level
A
C3
12
Q
A
13
Q
Nerves to suprahyoid musculature
A
14
Q
Strap muscles
A
15
Q
Innervation to infrahyoid muscles
A
16
Q
A
17
Q
A
18
Q
A
19
Q
A
20
Q
A
21
Q
Branches of Vagus nerve
A
Branches:
Superior laryngeal N
- Internal/External laryngeal NN
- Int. branch follows superior laryngeal A (through thyrohyoid membrane)
- Ext. branch to cricothyroid M
Recurrent laryngeal N
-Motor/sensory to larynx
