Lab Practical 1 Flashcards
intervertebral foramina
where spinal nerves pass from the spinal cord to the periphery
vertebral canal
encloses and protects spinal cord
supraspinous and interspinous ligaments
attach spines of adjacent vertebrae
ligamentum flavum
present on inner aspect of vertebral arch
posterior longitudinal ligament
runs along posterior aspect of vertebral bodies and limits hyperflexion of vertebral column
anterior longitudinal ligament
runs along anterior aspect of vertebral bodies and limits hyperextension of vertebral column
conus medullaris
occurs at level of L1 or L2; distal tapering of spinal cord
spinal nerves
31 pairs
cauda equina
“tail of horse”
loose collection of ventral and dorsal roots from lumbar and sacral spinal nerves inferior to the conus medullaris
filum terminale
center of cauda equina; a filament continuous with pia mater. anchors spinal cord to sacrum
dorsal and ventral rootlets
pierce the dura and enter intervertebral foramen as ventral and dorsal roots
spinal ganglion/dorsal root ganglion
will be proximal to the ventral and dorsal roots
ventral and dorsal rami
divisions of spinal nerve
trapezius
has fibers running in 3 directions
spinal accessory nerve (Cranial nerve XI)
innervates trapezius
rhomboid major and minor and levator scapulae
attached to medial edge of scapulae and innervated by branches of dorsal scapular nerve
serratus anterior
attaches to medial border of scapula near rhomboids and runs anteriorly and inferiorly to rubs 1-8
subscapularis
lies between serratus anterior and scapula
latissimus dorsi
slanting upward from vertebral column
thoracodorsal nerve and artery
neurovascular bundle embedded in fate on the deep surface of the latissimus dorsi
I Love Spaghetti
lateral to medial for erector spinae muscles (intrinsic back muscles)
iliocostalis, longissmus and spinalis
deltoid muscle
innervated by axillary nerve
infraspinatus
innervated by suprascapular nerve
posterioal humeral circumflex artery
found on the deep surface of the deltoid along with the axillary nerve