Intermediate and Deep Back Muscles Flashcards
what are the attachments and torque of Serratus Posterior Superior
medial: SP C7-T3
lateral: superior boarders of ribs 9-12
torque: elevates ribs 2-5
what are the attachments and torque of Serratus Posterior Inferior
medial: SP T11-L2
lateral: inferior boarder of ribs 9-12
torque: depresses rips 9-12
what innervates the Serratus Posterior Superior
anterior rami T2-T5
what innervates the Serratus Posterior Inferior
anterior rami T9-T12
what are the attachments of Splenius Capitis
Inferior: ligamentum nuchae, SP C7-T4
Superior: mastoid process, lateral one third of superior nuchal line
what are the attachments of Splenius Cervicis
Inferior: SP T3-T6
Superior: TP C1-C3
What are the torques of Splenius Capitis and Splenius Cervicis
unilateral: laterally flexes and rotates head/neck to same side
bilateral: extends head or neck
what does the posterior rami of the lower cervical nerves innervate
spinalis, longissimus, iliocostalis
what are the inferior attachments of the Spinalis, Longissimus, and Iliocostalis
medial sacral crest, posterior surface sacrum, lower thoracic and lubar SP, medial part of iliac crest
what are the torques of Spinalis, Longissimus, and Iliocostalis
Unilateral: laterally flexes vertebral column to same side
Bilateral: extends vertebral column and head, stabilizes vertebral column
what are the innervations of the Spinalis, Longissimus, and Iliocostalis
posterior rami of lower cervical nerves
what are the superior attachments of the spinalis
spinal process of thoracic and cervical vertabrae
what are the superior attachments of the longissiums
between tubercles and angles of ribs, transverse processes of thoracic and cervical, mastoid process
what are the superior attachments of the iliocostalis
angles of lower ribs and transverse process cervical
what are the attachments of the Semispinalis Capitis
inferior: TP C7-T6/7 and AP C4-C6
superior: nuchal line of occipital bone
what is the torque of the Semispinalis Capitis
unilateral: extends and laterally rotates head to opposite side
bilateral: extends head
what are the attachments of the Semispinalis Cervicis
inferior: TP T1-T5/6
superior: SP C2-C5
what is the torque of the Semispinalis Cervicis
unilateral: extends and laterally rotates neck to opposite side
bilateral: extends neck
what are the attachments of the Multifidus
inferior: sacrum, ilium, TP T1-L5, AP C4-C7
superior: SP L5-C2
what is the torque of the Multifidus
extends and rotates vertebral column to opposite side
what does the posterior rami of spinal nerves innervate
semispinalis cervicis, semispinalis capitis, and multifidus
