Term
| Action Potential (Nerve Impulse) |
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Definition
| electrical event occurring when a stimulus of sufficient intensity is applied to a neuron or muscle cell, allowing sodium ions to move into the cell and reverse the polarity. |
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Definition
| the middle meningeal layer, it is web like. |
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Definition
| Any of a number of proliferative and degenerative changes in the arteries leading to their decreased elasticity. |
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Definition
| a star-shaped glial cell of the central nervous system. |
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Term
| Autonomic Nervous System (ANS) |
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Definition
| the division of the nervous system that functions involuntarily; innervates cardiac muscle, smooth muscle, and glands. |
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Term
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Definition
| Neuron process that carries impulses away from the nerve cell body; efferent process; the conducting portion of a nerve cell. |
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Definition
| mechanism that inhibits passage of materials from the blood into brain tissues. |
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Definition
| the portion of the brain consisting of the medulla, pons, and mid brain. |
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Term
| Central Nervous System (CNS) |
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Definition
| the brain and the spinal chord. |
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Definition
| part of the hind brain; involved in producing smoothly coordinated skeletal muscle activity. |
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Definition
| Either of the two symmetrical halves of the cerebrum, as divided by the longitudinal cerebral fissure |
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Term
| Cerebrospinal Fluid (CSF) |
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Definition
| Fluid produced by choroid plexi; fills the ventricles and surrounds the central nervous system. |
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Definition
| largest part of the brain; consists of right and left cerebral hemispheres. |
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Definition
| the outermost and toughest of the three membranes(meninges) covering the brain and spinal chord. |
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Definition
| carries impulses from the CNS to effector organs, the muscles and glands. They activate muscles and gland, effect a response. |
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Term
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Definition
| glial cells line the central cavities of the brain and the spinal chord. Their cilia helps to circulate the cerebrospinal fluid that fills those cavities and forms a protective cushion around the CNS. |
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Term
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Definition
| One of the main structural divisions of the brain, which is located, as it is implied by its name, in the front part of the brain. The frontal lobe performs several important brain functions including planning and carrying out movements, judgment, insight, language, personality, and emotional control, among others. |
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Definition
| Group of nerve cells bodies located in the peripheral nervous system. |
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Definition
| region of the diencephalon forming the floor of the third ventricle of the brain. |
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Definition
| membranes that cover the brain and spinal chord. |
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