Ch 13: The Spinal Cord, Spinal Nerves, and Spinal Reflexes
____________________ contains the brain and spinal cord and is the processing centers.
Central nervous system
_____________________ contains cranial nerves and spinal nerves and has the sensory input and motor response pathways.
Peripheral nervous system
_________________ are controlled by the spinal cord alone without input from the brain. Example touching something hot.
Spinal reflexes
The _________________ is housed within protective membranes (meninges) and vertebral column
spinal cord
_____________ carries sensory and motor information between brain and most other parts of body
Spinal cord
Areas of the spinal cord that supply the limbs have more gray matter
and are visibly wider. The _____________________
supplies
shoulder and upper limb.
cervical enlargement
Lumbosacral enlargement supplies _______________________.
pelvis and lower limb
Distal end of the spinal cord, the _____________ is tapered, conical end of cord below lumbar enlargement.
Conus medullaris
Distal end of the spinal cord, ______________ is the thin thread of fibrous tissue at end of conus medullaris.
Filum terminale
Distal end of the spinal cord, _______________ is the nerve roots extending below conus medullaris, and looks like a horse’s tail, hence the name.
Cauda equina
Filum terminale attaches to _______________________.
coccygeal ligament
Anterior root (ventral root) are axons of ________________.
motor neurons
Posterior root (dorsal root ) are axons of _________________.
sensory neurons
Cervical plexus is __________________.
C1 through C5
lumbar plexus is _______________________.
T12 through L4
brachial plexus is ___________________.
C5 through T1