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MSK (Semester 2) > Pectoral Region > Flashcards

Flashcards in Pectoral Region Deck (9):
1

What is the function of serratus anterior?

It protracted the scapula, holding it against the thoracic wall and it also rotates the scapula.

2

What are the two attachments of serratus anterior?

It attaches to the medial border of the anterior scapula and also to the external surfaces of the lateral portion of ribs 1-8.

3

Where is pectoralis minor in relation to pectoralis major?

Posterior

4

Where does pectoralis minor attach?

It attaches to the anterior surface of ribs 3-5 and it also attaches to the coracoid process.

5

What nerve innervated pectoralis minor?

Medial pectoral nerve

6

What is the innervation of pectoralis major?

Lateral and medial pectoral nerves

7

Name the two heads of pectoralis major and their attachments.

Clavicular: medial half of clavicle
Sternocostal: sternum and superior 6 intercostal cartilages.
Both attach to lateral lip of intertrabecular sulcus.

8

What is the function of pectoralis major?

Adduction and medial rotation of the arm.

9

What is the innervation of serratus anterior?

Long thoracic nerve