Muscles Of Shoulder Girldle

Question 1

What is the origin of the trapezius

Answer 1

Back of skull C7 all thoracic vertebrae

Question 2

What is the insertion of the trapezius

Answer 2

Spine of scapula and lateral edge of clavicle

Question 3

What are the joint actions of the trapezius ?

Answer 3

Elevate,retract and depress the shoulder fields

Question 4

What is the origin of the rhomboids ?

Answer 4

Spinous processes of the cervical and thoracic vertebrae

Question 5

What is the insertion of the rhomboid ?

Answer 5

Medial border of the scapula

Question 6

What are the joint actions of the rhomboids ?

Answer 6

Retracts the scapula

Downwardly rotates the scapula

Question 7

What is the origin of the levator scapulae ?

Answer 7

Transverse processes of the cervical vertebrae c1-c4

Question 8

What is the insertion of the levator scapulae?

Answer 8

Medial border of scapula

Question 9

What are the joint actions of levator scapulae ?

Answer 9

Elevates the scapula
Assists in downward rotation of scapula
Laterally flexes the neck

Question 10

What is the origin of serratus anterior ?

Answer 10

Front of the ribs 1-8

Question 11

What is the insertion of the serratus anterior

Answer 11

Anterior surface of the medial border of the scapula

Question 12

What are the joint actions of the serratus anterior ?

Answer 12

Protract the scapula upwardly rotates the scapula

Question 13

What is the origin of the pectorals minor ?

Answer 13

Front of ribs 3-5

Question 14

What is the insertion of the pectoralis minor ?

Answer 14

Coracoid process of the scapula

Question 15

What are the joint actions of the pectoralis minor ?

Answer 15

Protract the scapula
Downwardly rotates the scapula
Elevates the rib cage during breathing