Term
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Definition
| Any change or signal in the environment that can make an organism react. |
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Term
| The three functions of the nervous system |
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Definition
| Receive information about what is happening inside and outside the body. Directs the way in which your body responds to the information. Helps maintain homeostasis. |
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Definition
| What your body does in reaction to a stimulus. |
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Term
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Definition
| Cells that carry information through your nervous system. |
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Term
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Definition
| The message that a neuron carries. |
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Term
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Definition
| Threadlike extensions that carry impulses toward the cell body. |
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Term
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Definition
| Part of a neuron that carries impulses away from the cell body. |
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Term
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Definition
| A bundle of nerve fibers. |
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Term
| Three different types of neurons |
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Definition
Sensory Neurons
Interneurons
Motor Neurons |
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Term
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Definition
| Picks up stimuli from the internal or external environment and creates a nerve impulse. |
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Term
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Definition
| A neuron that carries nerve impulses from one neuron to another. |
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Term
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Definition
| A neuron that sends and impulse to a muscle and the muscle contracts in response. |
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Term
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Definition
| A tiny space between each axon tip and the next structure. |
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Term
| The Central Nervous System |
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Definition
| Consists of the brain and the spinal cord and is the control center of the body. |
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Term
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Definition
| Organ in the skull that controls most functions of the body. |
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Term
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Definition
| A thick column of nerve tissue that links the brain to most of the nerves in the peripheral nervous system. |
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Term
| Three main regions of the brain |
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Definition
| The Cerebrum, cerebelluum and brainstem |
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Term
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Definition
| The largest part of the brain that interprets input from the senses, controls movement, and mental processes like learning. |
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Term
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Definition
| Second largest part of your brain that coordinates the actions of your muscles and helps you keep your balance. |
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Term
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Definition
| Part of the brain that lies betwen the cerebellum and spinal cord, and controls your body's involuntary actions like breathing and heartbeat. |
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Term
| The Peripheral Nervous System |
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Definition
| Consists of a network of nerves that branch out fform the central nervous system and connect it to the rest of your body. |
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Term
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Definition
| Nerves that control voluntary actions like using a fork and tying your shoelaces. |
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Term
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Definition
| Nerves that control involuntary actions of your body like blinking and breathing. |
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Term
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Definition
| An automatic response that occurs very rapidly and without conscious control. |
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Term
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Definition
| A bruiselike injury of the brain that occurs when the cerebrum bumps against the skull wall. |
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