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CPHS Adv Psych 1D
CPHS Adv. Psych. Brain 1D
Question | Answer |
---|---|
Autonomic Nervous System | The part of the peripheral nervous system that carries messages between the central nervous system and the internal organs. |
Parathyroids | Four tiny glands embedded in the thyroid; they secrete parathormone. |
Sympathetic Division | Branch of the autonomic nervous sytem, it prepares the body for quick action in an emergency. |
Parathormone | Hormone that controls the levels of calcium and phosphate in the blood and tissue fluids. |
Neural impulse or action potential | The firing of a nerve cell. |
Synaptic Space | Tiny gap between the axon terminal of one neuron and the dendrites or cell body of the next neuron. |
Graded Potential | A shift in the electrical charge in a tiny area of a neuron. |
Synapse | Area composed of the axon terminal of one neuron, the synaptic space, and the dendrite or cell body of the next neuron. |
Threshold of Excitation | The level an impulse must exceed to cause a neuron to fire. |
Synaptic Vesicles | Tiny sacs in a synaptic knob that release chemicals into the synapse. |