Anatomy of the Spinal Cords Function of Spinal Cord Cross-Sectional Anatomy and Spinal Tracts Reflexes Nerve
100
What is 31?
Number of vertebrae
100
What is neural integration?
function where the spinal neurons receive, integrate, then execute the information
100
What is white matter?
has an abundance of myelin
100
What is a muscle spindle?
stretch receptors that inform the brain of muscle length and body movements
100
What are sensory nerves?
nerves that are made of only efferent fibers
200
What is dura mater?
Thick, tough collagenous membrane
200
What is conduction?
bundles of nerve fibers conduct information through the spinal cord
200
What are glial cells?
both white and gray matter contain this
200
What is alpha motor neurons?
extrafusal fiber is supplied by spinal motor neurons called __________
200
What is visceral fibers
fibers that innervate blood vessels, glands, and viscera
300
What is L2 to S5?
A medullary cone is a bundle of nerve roots in the vertebral canal from _______
300
What is locomotion
the function that helps us gain the repetitive, coordinated contractions to walk
300
What is the central canal?
middle of the grey commissure
300
What is a tendon reflex?
response to excessive tension on tendon
300
What is epineurium?
Surrounds a bundle of fascicles that make up the nerve
400
What is subarachnoid space?
the gap between the arachnoid membrane and the pia mater
400
What is reflexes?
It is the function that is important for posture, motor coordination, and protective responses
400
What is a second-order neuron?
sends sensory signals from the spinal cord to the thalamus at the upper end of the brainstem
400
What is a stretch reflex?
helps maintain equilibrium, posture, and smooth out muscle action
400
What are ganglion?
cluster of neurosomas outside the CNS
500
What is cauda equina?
innervates the pelvic organs and lower limbs
500
What is central pattern generators?
group of neurons that cause repetitive muscle contractions that allows walking
500
What is ipsilateral?
tract that does not decussate
500
What is the polysynaptic reflex arc?
a pathway that signals travel over many synapses on the way back to the muscles
500
What is ALS?
Occurs when the neurotransmitter glutamate is not reabsorbed from tissue fluid and it builds up to a neurotoxic level






The Spinal Cord, Spinal Nerves, and Somatic Reflexes

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