8.6 Spinal Cord Flashcards
(30 cards)
It is the inferior end of the spinal cord and spinal nerves exciting is called?
Cauda Equina
Spinal Cord
Extends from the foramen magnum at the base of the skull to the second lumbar vertebra
White matter consist of ____
myelinated axon
Gray matter consist of ____
collection of neuron cell body
What is the pathway of an ascending tracts
towards the brain
It consist of axon that conduct action potential away from the brain
Descending tract
An H shaped like matter in the spinal cord is called?
Gray matter
Fluid-filled space in the center of the spinal cord
An involuntary reaction response to a stimulus
Reflex
Neural Pathway by which a reflex occurs
Reflex Arc
Reflex Arc
Basic functional unit of the nervous system
When does stretch reflex occurs
When muscles contract in response to a stretching force applied to them
An action to remove a body part form a painful stimulus
Withdrawal Reflex (also called Flexor Reflex)
Category “C” Region
Cervical
Category “T” Region
Thoracic
Category “L” Region
Lumbar
Category “S” Region
Sacral
Category “Co” Region
Coccygeal
Region C1 to C8 is called
Cervical Nerves
Region C1 to C4 in Cervical Nerves is called
Cervical Plexus
Brachial Plexus from what region
C4 to T1
Thoracic nerve regional number
T1 to T12
L1 to L1 region is called
Lumbar Nerve
Sacral nerve regional numbers
S1 to S5
