W7 - Shoulder Girdle Muscles

Question 1

Name the seven muscles that acts on the shoulder girdle

Answer 1

Subclavis
Pectoralis minor
Serratus anterior
Trapezius
Levator scapulae
Rhomboid major
Rhomboid minor

Question 2

Name the proximal distal attachment sites for the subclavius muscle of the shoulder girdle

Answer 2

Proximal
Costochondral junction of the 1st rib

Distal
Inferior surface of the middle 1/3 of the clavicle

Question 3

Name the nerve that supplies to be subclavius muscle of the shoulder girdle

Answer 3

Subclavian nerve C5-C6

Question 4

What action does the subclavius muscle of the shoulder girdle do?

Answer 4

Stabilises the sternoclavicular joint
Depression of the lateral clavicle

Question 5

Name the proximal distal attachment site for the pectoralis minor muscle of the shoulder girdle

Answer 5

Proximal
Anterior and superior surface of ribs 3,4 & 5

Distal
Coracoid process on the scapular

Question 6

What nerve supplies the pectoralis minor muscle for the shoulder girdle?

Answer 6

Medial and lateral pectoral nerve C5-8, T1

Question 7

What actions does the pectoralis minor muscle of the shoulder girdle do?

Answer 7

Depression
Protraction
Accessory muscle for respiration

Question 8

Name the proximal and distal attachment sites for the serratus anterior muscle of the shoulder girdle

Answer 8

Proximal
Anterior surface of the medial border of the scapula

Distal
Lateral surface of upper 8 to 9 ribs

Question 9

Name the nerve that supplies the serratus anterior muscle of the shoulder girdle

Answer 9

Long thoracic nerve C5-7

Question 10

What movements does the serratus anterior muscle of the shoulder girdle do

Answer 10

Protraction
Lateral rotation of scapular

Question 11

Name the proximal and distal attachment size for the trapezius muscle of the shoulder girdle

Answer 11

Proximal
Superior nuchal line & external occipital protuberance
Ligamentum nuchae
Spinous processes of C7-T12
Supraspinous ligament

Distal
Upper lateral third of the clavicle
Acromion and spine of the scapula (middle)
Medial end of scapular spine (lower)

Question 12

Name the nerve that applies the trapezius muscle of the shoulder girdle

Answer 12

Accessory nerve C3-4

Question 13

What action does the trapezius muscle of the shoulder girdle do?

Answer 13

Elevation
Lateral rotation of scapula
Retraction of shoulder girdle
Depression of shoulder girdle

Question 14

Name the proximal and distal attachment site for levator scapulae muscle of the shoulder go

Answer 14

Proximal
Superior portion of the medial border of the scapular

Distal
Transverse processes C1 - 4

Question 15

Name the nerve that supplies the levator scapulae muscle of the shoulder girdle

Answer 15

Dorsal scapular nerve C4 - 5

Question 16

What movements does the levator scapulae muscle of the shoulder girdle do?

Answer 16

Elevation of shoulder girdle
Medial rotation of scapular
Cervical extensions bilateral
Cervical side flexion unilateral

Question 17

Name the proximal and distal attachment sites for the rhomboid minor muscle of the shoulder girdle

Answer 17

Proximal
Spinous processes, C7 - T1
Ligamentum Nuchae

Distal
Medial border of scapular at root of the spine

Question 18

What nerve applies the rhomboid minor muscle of the shoulder girdle?

Answer 18

Dorsal scapular nerve C4 - 5

Question 19

What movements does the rhomboid minor muscle for shoulder girdle do?

Answer 19

Elevation of scapula
Retraction of scapula

Question 20

Name the proximal and distal attachment sites for rhomboid major muscle of the shoulder girdle

Answer 20

Proximal
Spine processes, T2 - 5
Intervening supraspinous ligaments

Distal
Medial border of scapula from root of spine to inferior angle

Question 21

What nerve applies the rhomboid major muscle of the shoulder girdle?

Answer 21

Dorsal scapular nerve C4 - 5

Question 22

What movements does the rhomboid major muscles of the shoulder girdle do?

Answer 22

Elevation of scapula
Retraction of scapula