Muscles of the Back

Question 1

serratus posterior superior
innervation:
action:

Answer 1

serrates posterior superior

innervation: 2nd-5th IC nerves [anterior rami]
action: proprioception for respiration

Question 2

serratus posterior inferior
innervation:
action:

Answer 2

serratus posterior inferior

innervation: 9th - 11th IC nerves [anterior rami]
action: proprioception for respiration

Question 3

spinalis

innervation:
action: 2

Answer 3

spinalis
innervation: posterior rami of spinal nerves

action: bilaterally extends vertebral column

unilaterally - flexes vertebral column

Question 4

longissimus
innervation
action: 2

Answer 4

longissimus

innervation: posterior rami of spinal nerves
action: bilaterally extends vertebral column , unilaterally flexes vertebral column

Question 5

iliocostalis

innervation:
action: 2

Answer 5

iliocostalis

innervation: posterior rami of spinal nerves
action: bilaterally extends vertebral column , unilaterally flexes vertebral column

Question 6

erector spinae muscles =

Answer 6

spinalis
longissimus
iliocostalis

Question 7

rectus capitis posterior major

attachment!
innervation
action:

Answer 7

rectus capitis posterior major

attachment: spinous process C2;
occipital bone

innervation: suboccipital nerve
action: head posture

Question 8

rectus capitis posterior minor

attachment:
innervation:
action:

Answer 8

rectus capitis posterior minor

attachment: posterior tubercle of C1
occipital bone

innervation: suboccipital nerve
action: head posture

Question 9

obliquus capitis inferior

attachment
innervation
action

Answer 9

obliquus capitis inferior:
attachment: spinous process of c2, transverse process of c1

innervation: suboccipital nerve
action: head posture

Question 10

obliquus captifs superior

attachment
innervation
action

Answer 10

obliquus capitis superior

attachment: transverse process of C1
occipital bone

innervation: suboccipital nerve
action: head posture