Term Time
Vital Functions
those functions of the body necessary for life on a min to min basis
Broca's Area
Initiates muscle movements for speech
Brainstem is comprised of:
Midbrain, Pons, Medulla Oblongata
What is the purpose of the reflex arc?
allows an automatic, appropriate pre-programmed response to a stimulus, faster than traveling to the brain
White Matter
Bundles of parallel axons and their sheaths
Wernicke's Area
Speech comprehension
Diencephalon is composed of:
Thalamus and hypothalamus
the afferent neuron is located in the ______ root
Dorsal
Decussation
A crossing over of neurons from one side to the other of the CNS
Prefrontal area
site of motivation and foresight; regulates mood and emotion, inhibits impulsive behavior
Gyri vs Sulci, which are hill and which are valleys?
Gyri-hills, sulci-vallies
The afferent neuron in a reflex arc has a ______ circuit. Explain how this works.
divergent, goes to association neuron (reflex arc) and brain
Gray Matter
Collections of neuron cell bodies
Premotor Area
Works out the sequence of signals for learned complex motion
Posterior to the brainstem, coordinates movement and balance
cerebellum
The efferent neuron in a reflex arc has a ______ circuit. Explain how this works.
convergent, recieves messages from the brain and from the association neuron (reflex arc)
Commissures
connections of neuron axons which allow the 2 hemispheres of the brain to communicate with one another
Primary Motor Cortex
Controls basic skeletal movements
Pea-sized and attached to the hypothalamus
pituitary gland
The reflex arc axons control the ipsilateral skeletal muscles. Is this the case with typical skeletal muscles?
No, the brain controls the opposite side of skeletal muscles