upper limb to vertebral column

Question 1

Trapezius*: Origin

Answer 1

down the midline, from the external occipital protuberance, the nuchal ligament, the medial part of the superior nuchal line, and the spinous processes of the vertebrae C7-T12

Question 2

Trapezius*: Insertion

Answer 2

at the shoulders, into the lateral third of the clavicle, the acromion process and into the spine of the scapula

Question 3

Trapezius*: Nerve

Answer 3

major nerve supply is the cranial nerve XI. cervical nerves C3 and C4 receive information about pain in this muscle

Question 4

Trapezius*: Action

Answer 4

retraction and elevation of scapula.

Question 5

latissimus dorsi*: Origin

Answer 5

spinous processes of thoracic T6-T12, thoracolumbar fascia, iliac crest and inferior 3 or 4 ribs

Question 6

latissimus dorsi*: Insertion

Answer 6

floor of intertubercular groove of the humerus

Question 7

latissimus dorsi*: Nerve

Answer 7

thoracodorsal nerve

Question 8

latissimus dorsi*: Action

Answer 8

pulls the forelimb dorsally and caudally

Question 9

rhomboid major*: Origin

Answer 9

spinous processes of the T2 to T5 vertebrae

Question 10

rhomboid major*: Insertion

Answer 10

medial border of the scapula, inferior to the insertion of rhomboid minor muscle

Question 11

rhomboid major*: Nerve

Answer 11

dorsal scapular nerve (C4 and C5)

Question 12

rhomboid major*: Action

Answer 12

Retracts the scapula and rotates it to depress the glenoid cavity. It also fixes the scapula to the thoracic wall.

Question 13

rhomboid minor*: Origin

Answer 13

nuchal ligaments and spinous processes of C7- to T1 vertebrae

Question 14

rhomboid minor*: Insertion

Answer 14

medial border of the scapula, superior to the insertion of rhomboid major muscle

Question 15

rhomboid minor*: Nerve

Answer 15

dorsal scapular nerve (C4 and C5)

Question 16

rhomboid minor*: Action

Answer 16

Retracts the scapula and rotates it to depress the glenoid cavity. It also fixes the scapula to the thoracic wall.

Question 17

levator scapulae*: Origin

Answer 17

posterior tubercles of transverse processes of C1 - C4 vertebrae

Question 18

levator scapulae*: Insertion

Answer 18

superior part of medial border of scapula

Question 19

levator scapulae*: Nerve

Answer 19

cervical nerve (C3, C4) and dorsal scapular nerve (C5)

Question 20

levator scapulae*: Action

Answer 20

Elevates scapula and tilts its glenoid cavity inferiorly by rotating scapula