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Chapter 23:Nervous System part 1

Teacher: Snickerfritz
Across
Functions to insulate the axon as well as increase the rate of transmission of nerve impulses
The difference in electrical charge between two areas.
Deeper, depressed areas of the brain
Ptrotective coverings of the brain and spinal cord
Lobe of the cerebrum responsible for mental functions such as reasoning, planning and memorizing
The division of the ANS that serves the business as usual- EX: digestion, elimination
The junction between two neurons
The abbreviation for the central nervous system; consists of brain and spinal cord
Chemicals released into the synaptic cleft that stimulate receptor proteins in the membrane of the next neuron
System of the motor division of the PNS that acts independently and without conscious effort
Ridged or raised areas of the brain
Thin delicate, cobweblike membrane that forms many small spaces by its attachment to the pia mater
Short for autonomic nervous system: the involuntary part of the PNS
Area of the brain that is responsible for conscious activities
The space between the axon terminal and another neuron
Special structure located at the end of an axon
The body part that responds to a stimulus
Down
An involuntary response to a stimulus
Multibranched fibers that project from the cell body; receive and relay nerve impulses TOWARD the cell body
Fibers that carry impulses AWAY from the cell body; longest portion of the neuron
Nerve impulse that results when sodium ions rush into the cytoplasm after stimulation
Functions as a relay center between the spinal cord and the brain
Located within the central nervous system; receive impulses from sensory neurons; distribute the impulse to other neurons
Located beteen the thalamus and the pons; contains the centers for controlling body movements and posture
Name of potential describing the difference between the inside and outside of a neuron when it is at rest
Periferal nervous system; all of the nervous system except the brain and spinal cord; carries information betwenn the CNS and the rest of the body
Controls involuntary activities such as body temperature , blood volume and fluid balance
The name of the fluid that flows through the spaces between the pia mater and the arachnoid membrane, fills the ventricles of the brain and central canal of the spinal cord
System of the motor division of the PNS that is connected to the skeletal muscles and can be controlled
Thick layer of white matter that connects the two hemispheres of the cerebrum
The division of the ANS that helps the body adjust to stressful or frightening experiences; fight or flight
Unconscious state
Lobe of the cerebrum responsible for vision and memory of objects and symbols
Color of the matter on the outer surface of the brain consisting of cell bodies and dendrites
The term used for neurons that are neither receiving or transmitting impulses
Neurons that carry impluses toward the central nervous system; each responds only to specific stimuli; EX tasting, hearing
Neurons that have dendrites and a cell body in the central nervous system but axons in the peripheral nervous system; stimulate muscles or glands to cause a response
Bulging structure located between the medulla oblongata and the midbrain; carries impulses from one side of the brain to the other