4C - Axial muscles Flashcards
dorsal root ganglion
houses cell body for sensory neurons
dorsal rami
serve the skin and muscles of the posterior trunk
ventral rami
innervate nearly everything in the body, form peripheral nerves via plexuses
posterior rami (dorsal)
deliver motor fibres to skeletal muscles along vertebral column and carry sensation form overlying skin
erector spinae
iliocostalis, longissimus, spinalis
“I Like Standing”
way to remember erector spinal muscles, Iliocostalis Longissimus Spinalis
splenius cervicis
spinous processes of T3-T6
capitus
near the head
Iliocostalis
extend and laterally flex the vertebral column
Longissimus
extends vertebral column
Spinalus
extends vertebral column
transverso-spinal group
semispainalis, rotatores, multifidus
semispinalis
extends neck and vertebral column
rotatores
dorsal rami of spinal nerves
multifidus
extends and rotates vertebral column