Intermediate and Deep Back Muscles

Question 1

what are the attachments and torque of Serratus Posterior Superior

Answer 1

medial: SP C7-T3

lateral: superior boarders of ribs 9-12

torque: elevates ribs 2-5

Question 2

what are the attachments and torque of Serratus Posterior Inferior

Answer 2

medial: SP T11-L2

lateral: inferior boarder of ribs 9-12

torque: depresses rips 9-12

Question 3

what innervates the Serratus Posterior Superior

Answer 3

anterior rami T2-T5

Question 4

what innervates the Serratus Posterior Inferior

Answer 4

anterior rami T9-T12

Question 5

what are the attachments of Splenius Capitis

Answer 5

Inferior: ligamentum nuchae, SP C7-T4

Superior: mastoid process, lateral one third of superior nuchal line

Question 6

what are the attachments of Splenius Cervicis

Answer 6

Inferior: SP T3-T6

Superior: TP C1-C3

Question 7

What are the torques of Splenius Capitis and Splenius Cervicis

Answer 7

unilateral: laterally flexes and rotates head/neck to same side

bilateral: extends head or neck

Question 8

what does the posterior rami of the lower cervical nerves innervate

Answer 8

spinalis, longissimus, iliocostalis

Question 9

what are the inferior attachments of the Spinalis, Longissimus, and Iliocostalis

Answer 9

medial sacral crest, posterior surface sacrum, lower thoracic and lubar SP, medial part of iliac crest

Question 10

what are the torques of Spinalis, Longissimus, and Iliocostalis

Answer 10

Unilateral: laterally flexes vertebral column to same side

Bilateral: extends vertebral column and head, stabilizes vertebral column

Question 11

what are the innervations of the Spinalis, Longissimus, and Iliocostalis

Answer 11

posterior rami of lower cervical nerves

Question 12

what are the superior attachments of the spinalis

Answer 12

spinal process of thoracic and cervical vertabrae

Question 13

what are the superior attachments of the longissiums

Answer 13

between tubercles and angles of ribs, transverse processes of thoracic and cervical, mastoid process

Question 14

what are the superior attachments of the iliocostalis

Answer 14

angles of lower ribs and transverse process cervical

Question 15

what are the attachments of the Semispinalis Capitis

Answer 15

inferior: TP C7-T6/7 and AP C4-C6

superior: nuchal line of occipital bone

Question 16

what is the torque of the Semispinalis Capitis

Answer 16

unilateral: extends and laterally rotates head to opposite side

bilateral: extends head

Question 17

what are the attachments of the Semispinalis Cervicis

Answer 17

inferior: TP T1-T5/6

superior: SP C2-C5

Question 18

what is the torque of the Semispinalis Cervicis

Answer 18

unilateral: extends and laterally rotates neck to opposite side

bilateral: extends neck

Question 19

what are the attachments of the Multifidus

Answer 19

inferior: sacrum, ilium, TP T1-L5, AP C4-C7

superior: SP L5-C2

Question 20

what is the torque of the Multifidus

Answer 20

extends and rotates vertebral column to opposite side

Question 21

what does the posterior rami of spinal nerves innervate

Answer 21

semispinalis cervicis, semispinalis capitis, and multifidus