Muscles Of Thorax And Back Flashcards Preview

Musculoskeletal System > Muscles Of Thorax And Back > Flashcards

Flashcards in Muscles Of Thorax And Back Deck (18):
1

What is the insertion of serratus anterior?

Medial margin of costal surface of scapula

2

What is the action of serratus anterior?

Lateral rotation of scapula
Draws scapula medially and forwards
Adduction of arm
Elevation of ribs

3

What is the nerve supply to serratus anterior?

Long thoracic nerve

4

What is the arterial supply to serratus anterior?

Lateral thoracic artery

5

What is the origin of pectoralis minor?

Ribs 3-5

6

What is the insertion of pectoralis minor?

Coracoid process of scapula

7

What is the action of pectoralis minor?

Pulls scapula medially, forwards and downwards

8

What is the nerve supply to pectoralis minor?

Medial and lateral pectoral nerves

9

What is the arterial supply to pectoralis minor?

Thoracoacromial artery

10

What is the origin of pectoralis major?

Clavicle, sternum and ribs 1-6

11

What is the insertion of pectoralis major?

Greater tubercle of humerus

12

What are the actions of pectoralis major?

Adduction, medial rotation and flexion of arm

13

What is the nerve supply to pectoralis major?

Medial and lateral pectoral nerves

14

What is the arterial supply to pectoralis major?

Thoracoacromial artery

15

What are the actions of the trapezius?

Retraction, superior rotation, elevation and depression of scapula

16

What are the actions of latissimus dorsi?

Extension, adduction and medial rotation of the arm

17

What is the origin of serratus anterior?

Ribs 1-9

18

What are the actions of the rhomboids?

Retract scapula and rotate scapula