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Motor control exam
exam
44
Science
Undergraduate 1
10/01/2014

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Cards

Term
Kinematics
Definition
motion without force
Term
FMRI
Definition
Blood flow
Term
EEG
Definition
Electrical Current/ electrical activity in the brain
non invasive
Term
TMS
Definition
Puts electrical stimulation into the brain

1. stimulate the brain

2. interfere with brain function

Term
what are the 3 levels of the motor control higharchy?
Nervous System
Definition

Higher centers

middle level

local level

Term
Higher level
Definition
forms complex plans and communicates with the middle level
Term
Middle level
Definition

motor cortex, cerebellum, basal ganglia

converts plan into motor programs

Term
Motor Control
Definition
The way the nervous system manages movement as well as stability
Term
local level
Definition
Alpha motor neurons tell muscles to move
Term
Central Nervous system
Definition
Spinal cord and brain
Term
Peripheral Nervous system
Definition
Term
What are the 3 types of neurons?
Definition
Motor, Sensory neuron, interneuron
Term
What do the upper motor neurons do
Definition
send signals into the spinal cord
Term
what do the lower motor neurons do?
Definition
connect with the muscles axon terminates
Term
Monosynapic reflex
Definition

One synapse

faster 

ex: spinal strech reflex

 

Term
Polysynaptic reflex
Definition

more than on synapse 

longer 

Ex: golgi tendon reflex

Term

Action Potential

 

Definition

electrical impulse

Brief all or none depolorization of the membrane

Term
Refractory period
Definition

cannot go backwards

limits frequency

 

Term
EMG
Definition
electrical activity of the muscles
Term
IMU
Definition
measures acceleration giving kinematic data
Term
Efferent
Definition
Information from the brain to the muscles
Term
Afferent
Definition
Information from the periphery to the brain
Term
homunculus
Definition
not proportional to their size but rather to the complexity of the movements they preform
Term
Corticalspinal tract
Definition
outgoing motor neurons electrical signal goes out brain to spinal cord
efferent
Term
motor unit
Definition
neuron and all of the muscles fibers it innervates
Term
Angular dispalcement
Definition
single joint movement
Term
Linear Displacement
Definition
Multi-joint movement
Term
Motor evoked potential
Definition
Action potential that makes the muscle move
Term
Upper motor neurons
Definition
directly from brain to spinal cord
no not directly connect with muscles
Term
lower motor neureons
Definition
connect directly with the muscle causing it to contract
Term
reflexes
Definition
do not involve the brain
Term
resting potential
Definition
move K+ inside
move na outside
Term
transduction
Definition
converting one stimulus to an electrical potential
Term
Modality
Definition
different types of stimulus
Term
Rapidly Adapting
Definition
Meissner's and Pacinian
Term
Slowly Adapting
Definition
Merkel and Ruffini
Term
Surface receptors
Definition
Meisseners and merkel
Term
Deep receptors
Definition
Pacinian and Ruffins
Term
Muscle Spindles
Definition
Changes in muscle length dynamic or static
Term
Golgi Tendon Organs
Definition
Senses change in tendons/tension
Term
Proprioception
Definition
DCML afferent for touch and proprioception
Term
What happens neurons when you get older?
Definition
decrease in excitatory increase in inhibitory
Term
what happens to the cutanuous receptors when you get older?
Definition
Decrease numbers and density
Term
muscle spindles
Definition
changes in muscle length dynamic and static
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