Lateral Cervical aka Posterior Triangle of neck Flashcards Preview

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Flashcards in Lateral Cervical aka Posterior Triangle of neck Deck (25)
1

Define the boarders of the posterior triangle

SCM
Ascending trapezius
Inferior belly of omohyoid

2

Describe the pathway of CN XI through posterior triangle

passes deep to SCM,
runs on the levator scapulae
disappears to anterior boarder of trap.

3

What physical symptoms would be associated with CNXI damage?

Weakness turning the head to the opposite side against resistance. (unilateral paralysis of trapezius)
Drooping shoulders

4

What is torticollis

is a contraction of the cervical muscles that produces a twisted neck.
Most common is a fibrous tissue tumor that developed in the SCM, causes head to tilt toward and face to turn away from the affected side.
Can also occur during childbirth and can cause CNXI dmg.

5

Where is the phrenic nerve?

It courses anterior to the anterior scalene muscle

6

What happens if the phrenic nerve is severed?

Ipsilateral paralysis of diaphragm. sometimes only partially due to some people having an accessory phrenic nerve.

7

Name the three trunks of the brachial plexus.

Superior C5/C6 middle C7 and inferior C8/T1

8

What happens with injury to the superior brachial plexus

Erb-Duchenne palsy. Paralysis of muscles of the shoulder and arm supplied by C5/C6 (deltoid, bicep, brachial is) Upper limb with an adducted shoulder, medially rotated arm and extended elbow.

9

What separates the subclavian artery and vein?

Anterior scalene muscle

10

What nerve courses along the anterior scalene muscle?

Phrenic Nerve

11

What runs between the anterior and middle scalene?

brachial plexus and subclavian a.

12

From superior to posterior list the structures in the

platysma muscle
SCM
Omohyoid m.
IJV
Phrenic Nerve
Anterior scalene
brachial plexus/subclavian artery
middle scalene
posterior scalene

13

What is the difference between the thoracic duct and right lymphatic duct?

The thoracic duct (can also be called the left lymphatic duct) is the largest lymph duct in the body. Collect almost all lymph from the body, except the portion which is drained to the RLD.

14

What attaches to the lateral lip of the inter tubercular sulcus?

pec major

15

What attaches to the 'floor' of the inter tubercular sulcus?

latissimus dorsi

16

Describe the relation of axillary artery and vein.

Axillary v. lies initially distally on the antero(in front of) medial side of axillary a. its terminal part is antero-inferior to the axillary a.

17

Coracohumeral ligament

coracoid process to anterior aspect of GT of humerus

18

Transverse humeral ligament

connects greater tubercle and lesser tubercle

19

coraco-acromial ligament

connects the coracoid process and acromion

20

Abduction of glenohumeral joint

1st supraspinatus 2nd deltoid

21

Adduction of glenohumeral joint

pectorals major, lattissimus dorsi, trees major

22

flexion

pectorals major, deltoid

23

extension

deltoid

24

lateral rotation

infraspinatus teres minor

25

medial rotation

subscapularis