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Terms in this set (18)
Central Nervous System (CNS)
part of the nervous system that includes the brain and the spinal cord
Peripheral Nervous System (PNS)
all the parts of the nervous system except the brain and spinal cord
special cells that carry the information that travels through the nervous system.
parts of the neuron that branch from the cell body. They bring messages from other cells into the cell body.
parts of the neuron that carry information away from the neuron's cell body to other cells. They can measure up to 1 meter long.
end of an axon
messages that are made from electrical energy and are sent throughout the nervous system
type of neurons that carry information about what is happening in and around your body.
sensory neurons that detect information about the body and its environment
type of neurons that carry messages from the brain and spinal cord to other parts of the body. Most carry impulses to muscle cells. Others carry impulses to glands.
bundles of axons wrapped together with blood vessels and connective tissue - connects the central nervous system to the rest of the body. Most contain axons from both sensory neurons and motor neurons.
somatic nervous system
the part of the peripheral nervous system that is made up of motor neurons you can control and are connected to skeletal muscles.
autonomic nervous system
the part of the peripheral nervous system that controls body functions that are automatic (you don't need to think about). There are two divisions (sympathetic and parasympathetic) that work together to maintain homeostasis.
the body's control center and largest organ of the nervous system.
the largest part of the brain and controls thinking, sensing, and voluntary movement. Made up of two halves called hemispheres.
the part of the brain that keeps track of the body's position and helps maintain balance.
the part of the brain that controls involuntary processes, such as heart rate, blood pressure, body temperature, and breathing.
made up of neurons and bundles of axons that send impulses to and from the brain - it is surrounded by bones called vertebrae.
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