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Flashcards in Scalene muscles Deck (10)
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1
Q

What are the different parts to the Scalene muscles?

A

anterior
middle
posterior

2
Q

What is the origin of all the scalene muscles?

A

TV C3-C7

3
Q

Where does the anterior scalene insert?

A

anteriorly rib 1

4
Q

Where does the middle scalene insert?

A

posteriorly rib 1

5
Q

Where does the posterior scalene insert?

A

rib 2

6
Q

What is the action of the Scalene muscles?

A

raise the rib

if rib is fixed side bend the neck

7
Q

Where does the brachial plexus, cervical plexus and subclavian artery travel in relation to the scalene M?

A

between the anterior and middle scalene

8
Q

Where does the phrenic nerve travel in relation to the scalene M.?

A

anterior surface of anterior scalene

9
Q

What is thoracic outlet syndrome?

A

what arteries nerves are veins are crushed in the narrow space between the clavicle and first rib

10
Q

How is thoracic outlet syndrome caused?

A

Hypertrophy of the anterior and middle scalene muscles

overstrengthning of the pectoral M