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| The minimum length of time after an action potential during which another action potential cannot begin. | ||
| A brief change in a neuron's electrical charge. | ||
| A chemical that mimics the action of a neurotransmitter. | ||
| A chemical that opposes the action of a neurotransmitter. | ||
| The system of nerves that connect to the heart, blood vessels, smooth muscles, and glands. | ||
| A long, thin fiber that transmits signals away from the neuron cell body to other neurons, or to muscles or glands. | ||
| The brain and the spinal cord. | ||
| Branch of psychology concerned with the links between biology and behavior | ||
| Branchlike parts of a neuron that are specialized to receive information. | ||
| Axons that carry information outward from the central nervous system to the periphery of the body. | ||
| A group of glands that secrete chemicals into the bloodstream that help control bodily functioning. | ||
| The chemical substances released by the endocrine glands. | ||
| Bundles of neuron fibers (axons) that are routed together in the peripheral nervous system. | ||
| Individual cells in the nervous system that receive, integrate, and transmit information. | ||
| Chemicals that transmit information from one neuron to another. | ||
| The branch of the autonomic nervous system that generally conserves bodily resources. | ||
| All those nerves that lie outside the brain and spinal cord. | ||
| The "master gland" of the endocrine system; it releases a great variety of hormones that fan out through the body, stimulating actions in the other endocrine glands. | ||
| The stable, negative charge of a neuron when it is inactive. | ||
| A process in which neurotransmitters are sponged up from the synaptic cleft by the presynaptic membrane. | ||
| The system of nerves that connect to voluntary skeletal muscles and to sensory receptors. | ||
| The branch of the autonomic nervous system that mobilizes the body's resources for emergencies. | ||
| A junction where information is transmitted from one neuron to the next. | ||
| Carry incoming information from the sensory receptors to the brain and spinal cord | ||
| Carry outgoing information from the brain and spinal cord to the muscles and glands | ||
| Neurons within the brain and spinal cord that communicate internally and intervene between the sensory inputs and motor outputs | ||
| Layer of fatty tissue segmentally encasing the fibers of many neurons, enables vastly greater transmission speed of neural impulses as the impulse hops from one node to the next | ||
| Pair of endocrine glands that sit just above the kidneys and secrete hormones (epinephrine and norepinephrine) that help arouse the body in times of stress. |
