Week 5 - Posterior axioappendicular muscles

Question 1

Posterior axio-appendicular muscles (5)

Answer 1

Trapezius
Levator scapulae
Rhomboids minor
Rhomboids major
Latissimus dorsi

Question 2

Anterior axio-appendicular muscles (4)

Answer 2

Pectoralis major
Pectoralis minor
Subclavius
Serratus anterior

Question 3

Scapulohumeral muscles (6)

Answer 3

Deltoid
Supraspinatus
Infraspinatus
Subscapularis
Teres minor
Teres major

Question 4

Trapezius Att., Action, NS

Answer 4

Attachments:
P: superior nuchal line, occipital protuberance, nuchal ligament, spinous process C7 – T12
D: spine of scapula, lateral 1/3 clavicle

Action: moves scapula
* Descending (Superior, Upper): elevation & upward rotation
* Middle: retraction
* Ascending (Inferior, Lower): depression & upward rotation

NS: Accessory n.

Question 5

Latissimus dorsi Att., Action, NS

Answer 5

Attachments:
P: spinous processes T6-12, thoracolumbar
fascia (TLF), inferior ribs, iliac crest
D: floor of intertubercular sulcus of humerus

Action: ADD, EXT, IR of GHJ
* Directly moves arm on GHJ
* Indirectly moves scapula on STJ

NS: Thoracodorsal n.

Question 6

Levator Scapulae Att., Action, NS

Answer 6

Attachments:
P: transverse processes C1-4
D: superior angle, medial border, base
(root) of spine of scapula

Action: elevate scapula, side flexion
of neck, control scapula in UL movements

NS: dorsal scapular n.

Question 7

Rhomboid minor Att., Action, NS

Answer 7

Attachments:
P: spinous processes C7-T1, nuchal ligament
D: medial border on the base of the spine of
scapula

Action: retract & rotate scapula; fix scapula
to thoracic wall

NS: Dorsal scapular n.

Question 8

Rhomboid Major Att., Action, NS

Answer 8

Attachments:
P: spinous processes T2-5
D: medial border of scapula from spine of
scapula to inferior angle

Action: retract & rotate scapula; fix scapula to
thoracic wall

NS: Dorsal scapular n.