Study sets, textbooks, questions
Upgrade to remove ads
Control of Movement
Terms in this set (20)
The Basic Sensory Pathway is made of how many neurons?
The 1st neuron connects where?
To a receptor in the CNS
The 2nd receptor carries _________ (motor or sensory) information to the __________ (thalamus or hypothalamus)
The 3rd neuron, whose cell body is in the thalamus, projects the message to the ________
post central gyrus (parietal lobe of cerebral cortex)
The Spinothalamic Tract transmits what kind of sensations?
Sensations of pain and temperature
There are ______ neurons in the Spinotalamic Tract
The 1st order neuron enters the _______ horn (ventral or dorsal) and synapses with the 2nd neuron
The 2nd order neuron crosses the cord at the ________ level, turns upward and ascends in the _________ columns, through the medulla to the _________.
The 3rd order neuron goes from the thalamus to the _______ gyrus
What transmits sensations of touch, 2 Point Discrimination, Proprioception and Vibration?
After the 1st neuron enters the spinal cord, does it turn upward on the same side or opposite side?
The 1st order neuron ascends to where?
The 2nd order neuron crosses at the ______ (same side or opposite side) before traveling to the _______.
The 3rd order neuron then travels to where?
post central gyrus
Extrapyramidal Tract transmits _______ (sensory or motor) information the the spinal cord
transmits motor information to the spinal cord
The cell bodies of the Extrapyramidal Tract lie where?
(hint: area 6)
In the premotor gyrus (area 6)
The function of the Extrapyramidal Tract is to?
influence/regulate stereotyped movements of a reflex nature
What are the 3 components of a motor unit?
1.Motor neuron in the anterior (ventral) horn
2. Axon of motor neuron that leaves the spinal cord making up part of a peripheral nerve
3. The muscle fibers that are innervated by that neuron
What is the function of the Gamma Motor System?
A muscle spindle that has built in muscle fibers that keep it taut and ready to sense changes in the muscle, even when the muscle is on slack.
What makes up a Gamma Motor System?
Muscle spindle fibers along with their neurons are called the gamma motor system
Sets with similar terms
HA: Chapter 15
LECTURE 17 - Somatic Motor System (CH. 1…
Neuro-Intra/Extrafusal Muscle Fibers & Motor Neuro…
Descending Spinal Tracts
Other sets by this creator
Pelvic Health Therapy Level 1