Nervous System
Name 3 functions of the nervous system
What is Sensory input, Integration, Motor output,
These provide support and protection of neurons
Neuroglia
The brocas area deals with what function
speech
What part of the nervous system is directly related to the control of breathing?
Pons
A neuron that connects sensory and motor nerves
interneuron
2 subdivisions of the PNS
Autonomic and somatic
Name three neuroglial cells and their functions
Astrocyte - brace neurons
Ependymal - circulate CSF
Microglia - Phagocytes
Oligodendrocytes - Produce Myelin
Schwann Cell - Make up the myelin in PNS
Satellite cell - Protect cell bodies
A neuron at rest is called
Polarized
What is the gap between neurons called?
Synaptic cleft
This part of the nervous system is in charge of involuntary, life-sustaining functions such as breathing, heart rate, blood pressure, and digestion
Medula Oblongata
Two subdivisions of the Autonomic Nervous System
What is Parasympathetic Division- "rest and digest" and Sympathetic "Fight or Flight"
What are the three main parts of the neuron?
dendrites, axon, Cell body, axon terminals
What are the 4 main lobes?
1. Frontal
2. Parietal
3. Temporal
4. Occipital
Unmyelinated fibers are considered
grey matter
What system deals with your emotions and where is it found??
Limbic, Hypothalamus
The central nervous system is made of these organs
brain and spinal cord
What does an axon terminal hold?
neurotransmitters
What connects the two brain hemispheres
corpus callosum
What is released OUT of the neuron to cause it to repolarize?
Potassium
neurons taking information back to your body are called what?
motor neurons
What is released to start a nerve impulse?
Sodium
What part of the brain serves as a relay station?
Thalamus
What is the gap between myelin sheaths on the axon called?
Nodes of Ranvier
What are the three parts of the diencephalon?
Thalamus, hypothalamus, epithalamus
What are the three layers covering the brain from inside to outside?
Pia, arachnoid, dura matter