Intro Flashcards
Define contralateral.
belonging to or occurring on the opposite side of the body
Responsible for human movement, coordination, motor control and sensory perception.
cerebellum
Define cortex.
- outer layer of the cerebrum
- 2 cortices and 2 hemispheres
Define cerebellum.
responsible for human movement, coordination, motor control and sensory perception
The ____ lobe controls more abstract aspects of our thinking and personality.
frontal
This is the place where 2 things are joined.
commissure
- Situated between the cerebral cortex and the midbrain
- surrounds the 3rd ventricle
- relays sensory and motor signals to the cerebral cortex
- regulates consciousness, sleep, and alertness
thalamus
Define thalamus.
- situated between the cerebral cortex and the midbrain
- surrounds the 3rd ventricle
- relays sensory and motor signals to the cerebral cortex
- regulates consciousness, sleep, and alertness
This is the outer layer of the cerebrum; 2 cortices and 2 hemispheres.
cortex
Belonging to or occurring on the same side of the body
ipsilateral
Define White Matter.
myelinated nerve fibers
Define homunculus.
a map of the representation of the body on the motor cortex that looks like a distorted human
Define synapse.
a structure that permits a neuron (or nerve cell) to pass an electrical or chemical signal to another neuron
These axons carry information toward the cell body.
afferent
What makes up the thalamus?
clusters of cell bodies called nuceli
This is the point-for-point correspondence of an area of the body to a specific point on the central nervous system.
somatotopy
This is the ability of synapses to strengthen or weaken over time, in response to increases or decreases in their activity.
synaptic plasticity
Define ipsilateral.
belonging to or occurring on the same side of the body
This is a map of the representation of the body on the motor cortex that looks like a distorted human.
a homunculus
Belonging to or occurring on the opposite side of the body.
contralateral
These are fibers (axon) carrying impulses away from the cell body.
efferent
The frontal lobe controls more abstract aspects of our ____ and _____.
thinking and personality
Define somatotopy.
the point-for-point correspondence of an area of the body to a specific point on the central nervous system
Define Synaptic Plasticity.
the ability of synapses to strengthen or weaken over time, in response to increases or decreases in their activity
This is a structure that permits a neuron (or nerve cell) to pass an electrical or chemical signal to another neuron.
a synapse
This is another name for “a crossing.”
decussation
Define efferent.
fibers (axon) carrying impulses away from the cell body
Define afferent.
carrying information toward the cell body
Define commissure.
the place where 2 things are joined
Define decussation.
a crossing
Gray matter contains _____.
cell bodies
Define Grey Matter.
cell bodies w/o much myelination on the axons
