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HBS Unit 2.1 Nervous System

Horizontales
Convoluted ridge between anatomical grooves
Value in a membrane potential when, if reached, leads to the initiation of an action potential
Part of brain stem that regulates bladder control
Part of nervous system that contains the brain and spinal cord
Insulating layer that covers the axon (2 wds)
Thoughtful response to an external stimulus in which the brain processes the nerve impulse before reacting
Part of nervous system that contains nerves outside brain and spinal cord
Nerve cell
When open potassium channels cause a neuron to overshoot its resting potential
Long portion of neuron along which a signal travels
Composed of midbrain, pons, and medulla oblongata (2 wds)
Another name for cell body
When a cell returns to resting potential
Interior part of brain responsible for thirst and hunger and regulates the endocrine system
Shallow furrow on the surface of the brain separating sulci
Gaps in myelin sheath - Nodes of _______
Part of the brain stem responsible for movements of the eye and pupil dilation
Lobe of brain responsible for movement, reasoning, and personality
Control center of the cell
Verticales
The automatic response of a muscle to a stimulus
Gland in brain that secretes melatonin to promote sleepiness
Space between axon terminals of one neuron and dendrites of another
Lobe of brain responsible for vision
Lobe of brain that receives sensory input from skin and interprets language
Neurons contained entirely within the central nervous system
Chemical signal secreted by a neuron
Lobe of brain responsible for hearing and smell
Part of brain stem that regulates blood pressure and breathing (1st word)
Branched extensions of the neuron that receive signals from other neurons
All-or-nothing event initiated by opening of sodium ion channels in cell membrane
Part of brain that contains the thalamus, hypothalamus, and pineal gland