Muscles Connecting the Upper Limb to the Vertebral Column: OINA

Question 1

Trapezius: Origin

Answer 1

Occipital bone, ligamemtum nuchae, spine of C7, spines of all thoracic vertebra

Question 2

Levator Scapulae: Origin

Answer 2

Transverse processes of C1-C4

Question 3

Latissimus Dorsi: Origin

Answer 3

Iliac crest, lumbar fascia, spines of lower six thoracic vertebrae, lower 3 or 4 ribs, and inferior angle of scapula

Question 4

Rhomboid Minor: Origin

Answer 4

Ligamemtum nuchae and spines of C7 and T1

Question 5

Rhomboid Major: Origin

Answer 5

T2-T5 spines

Question 6

Trapezius: Insertion

Answer 6

Upper fibers into lateral third of clavicle; middle and lower fibers into acromion and spine of scapula

Question 7

Latissimus dorsi: Insertion

Answer 7

Floor of bicipital groove of humerus

Question 8

Levator Scapulae: Insertion

Answer 8

Medial border of the scapula

Question 9

Rhomboid Minor: Insertion

Answer 9

Medial border of the scapula

Question 10

Rhomboid Major: Insertion

Answer 10

Medial border of the scapula

Question 11

Trapezius: Innervation

Answer 11

Spinal part of accessory nerve (motor) and C3 and 4 (sensory); CN XI

Question 12

Latissimus dorsi: Innervation

Answer 12

Thoracodorsal nerve; C6, 7, 8

Question 13

Levator Scapulae: Innervation

Answer 13

Dorsal scapular nerve; C3,4,5

Question 14

Rhomboid Minor: Innervation

Answer 14

Dorsal scapular nerve; C4, 5

Question 15

Rhomboid Major: Innervation

Answer 15

Dorsal scapular nerve; C4, 5

Question 16

Trapezius: Action

Answer 16

Elevate, retract, depress scapula

Question 17

Latissimus dorsi: Action

Answer 17

Extends, adducts, medially rotates arm

Question 18

Levator Scapulae: Action

Answer 18

Raises medial border of scapula

Question 19

Rhomboid Minor: Action

Answer 19

Raises medial border of scapula upward and medially

Question 20

Rhomboid Major: Action

Answer 20

Raises medial border of scapula upward and medially