Innervation

Question 1

Trapezius

Answer 1

Accessory nerve (CN XI) and cervical plexus (C3 and C4)

Question 2

Levator scapulae

Answer 2

Dorsal scapular nerve (C5) and direct bbrances from spinal nerves C3 and C4

Question 3

Rhomboid major

Answer 3

Dorsal scapular nerve (C5)

Question 4

Rhomboid minor

Answer 4

Dorsal scapular nerve (C5)

Question 5

Latissimus dorsi

Answer 5

Thoracodorsal (middle or long subscapular nerve) nerve, a branch of the posterior cord (C6-C8)

Question 6

Splenius capitis

Answer 6

Dorsal rami of middle cervical spinal nerves

Question 7

Splenius cervicis

Answer 7

Dorsal rami of spinal nerves C1-C6

Question 8

Iliocostalis

Answer 8

Lumbar; dorsal rami of spinal nerves, thoracic, and upper lumbar nerves
Thoracic; Dorsal primary rami of C8, thoracic, and upper lumbar nerves
Cervicic; Dorsal rami of spinal nerves

Question 9

Longissimus

Answer 9

Thoracic; Dorsal primary rami of thoracic and lumbar spinal nerves
Cervicis; Dorsal primary rami of upper thoracic and lower cervical spinal nerves

Question 10

Spinalis

Answer 10

Dorsal rami of upper cervical nerves

Question 11

Semispinalis capitis

Answer 11

Dorsal rami of spinal nerves

Question 12

Semispinalis cervicis

Answer 12

Dorsal rami of spinal nerves

Question 13

Multifidus

Answer 13

Posterior branches

Question 14

Rotatores

Answer 14

Cervical, thoracic, and lumbar nerves (posterior branch)