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ANPS

Fall Exam 5

QuestionAnswer
basic unit of motor activity single motor neuron + all the muscle it synapses on
Lower Motor Neuron cell body in spinal cord or in brainstemaxon terminates on musclesactively innervates muscle
Upper Motor Neuron cell body in brainstem or cotexsynapses on lower motor neuronfine tunes lower motor neuron
Reflex Arc receptor, afferent sensory neuron, efferent motor neuron, effector
muscle spindle monitors muscle length and rate of change, organized in parallel with extrafusal muscle fibers
Golgi Tendon Organ monitors muscle tension, organized in series with extrafusal muscle fibers
Myostatic reflex basic info simplest reflex, monosynaptic reflex between muscle spindle and motor neuron, stretch
Myotatic reflex contraction/excitation of agonist muscle, relaxation/inhibition of antagonist muscle, comes back to muscle that started sensory, interneuron inhibits antagonist muscle
Patellar reflex test stretch reflex, maintain posture
Inverse myotatic reflex lengthening, disynaptic reflex between GTO and motor neuron, interneuron inhibits agonist muscle, protects against muscle damage during extreme muscle exertion
The withdrawal (flexor) refles is initiated by? noxious stimuli
A Single Stimulus causes activation of hip and leg flexors, activation on the opposite side to shift weight to that leg
Created by: ctowler