chapter 13 Flashcards
4 principle functions of the spinal chord
conduction, neural integration, locomotion, reflexes
neural integration
the ability of your neurons to process information, store and recall it, and make decisions
how many pairs of spinal nerves does the spinal chord give rise to?
31
4 regions of the spinal chord
cervical, thoracic, sacral, lumbar
inferior cervical region gives rise to
nerves of upper limbs
lumbar enlargement gives rise to nerves
pelvic and lower limb nerves
Inferior to the lumbar enlargement, the cord tapers to a point called the
medullary cone
lumbar enlargement and medullary cone give rise to a bundle of nerve roots called
cauda equina
three fibrous connective tissue membranes called meninges (sing. meninx) that surround the spinal chord and brain
dura mater, arachnoid mater, pia mater
gap between the arachnoid membrane and the pia mater?
subarachnoid space
Summation
process of adding up postsynaptic potentials and responding to their net effect (occurs in trigger zone)