Term
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Definition
| carrying toward a given point, such as the sensory neurons and nerves that carry impulses toward the CNS |
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Term
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Definition
| the middle layer of the meninges |
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Term
| autonomic nervous system (ANS) |
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Definition
| the division of the nervous system that regulates invouluntary activites, controlling smooth muscles, cardiac muscle, and glands, the visceral nervous system |
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Term
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Definition
| the fiber of a neuron that conducts impulses away from the cell body |
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Term
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Definition
| the nervous tissue contained within the cranium; consists of the cerebrum, diencephalon, brainstem, and cerebellum |
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Term
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Definition
| the part of the brain that consists of the midbrain, pons, and medulla oblongata |
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Term
| central nervous system (CNS) |
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Definition
| the brain and spinal cord |
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Term
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Definition
| the posterior portion of the brain dorsal to the pons and medulla; helps coordinate movement and to maintain balance and posture (mean little brain) |
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Term
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Definition
| the cerebrum's thin surface layer of gray matter (the cortex is the outer region of an organ) |
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Term
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Definition
| the large upper portion of the brain; it is divided into two hemispheres be the longitudinal fissure |
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Term
| cerebrospinal fluid (CSF) |
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Definition
| the watery fluid that circulates in and around the brain and spinal cord as protection |
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Term
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Definition
| the 12 pairs of nerves that are connected to the brain |
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Term
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Definition
| a fiber of a neuron that conducts impulses toward the cell body |
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Term
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Definition
| the part of the brain that contains the thalamus, hypothalamus, and pituitary gland, located between the cerebrum and the brainstem |
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Term
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Definition
| the strong, fibrous outermost layer of the meninges |
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Term
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Definition
| carrying away from a given point, such as the motor neurons and nerves that carry impulses away from the CNS |
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Term
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Definition
| a collection of neuron cell bodies outside the CNS |
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Term
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Definition
| unmyelinated tissue of the nervous system |
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Term
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Definition
| a raised convolution of the surface of the cerebrum |
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Term
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Definition
| the part of the brain that controls the pituitary gland and maintains homeostasis |
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Term
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Definition
| any neuron located between a sensory and a motor neuron in a neural pathway, such as the neurons that transmit impulses within the CNS |
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Term
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Definition
| the portion of the brain that connects with the spinal cord. it has vital centers for control of respiration, heart rate, and blood pressure |
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Term
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Definition
| the three membranes that cover the brain and spinal cord |
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Term
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Definition
| the part of the brain stem between the diencephalon and the pons; contains centers for coordination of reflexes for vision and hearing |
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Term
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Definition
| producing movement; decribes neuronsand nerves that carry impulses away from the CNS |
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Term
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Definition
| a whitish, fatty substance that surrounds certain axons of the nervous system |
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Term
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Definition
| the support cells of the nervous system; also called glial cells |
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Term
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Definition
| the basic unit of the nervous system; a nerve cell |
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Term
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Definition
| a chemichal that transmits energy across a synapse. examples are epinephrin, acetylcholene, serotonin, and dopamine |
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Term
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Definition
| a bundle of neuron fibers outside the CNS |
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Term
| parasympathetic nervous system (PNS) |
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Definition
| the part of the automatic nervous system that reverses the response to stress and restores homestasis. It slows heart rate and respirtation rate and stimulates digestive, urinary, and reproductive activities |
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Term
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Definition
| the inner most layer of the meninges |
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Term
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Definition
| a rounded area on the ventral surface of the brainstem; contains fibers that connect brain regions; adjective pontine |
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Term
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Definition
| a simple, rapid, and automatic response to a stimulus |
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Term
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Definition
| a branch of a spinal nerve that connects with the spinal cord; the dorsal (posterior) root joins the spinal cord;s dorsal gray horn; the ventral (anterior) root joins the spinal cord's ventral gray horn |
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Term
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Definition
| decribing neurons and nerves that carry impulses toward the CNS |
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Term
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Definition
| the division of the nervous system that controls skeletal (voluntary) muscles |
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Term
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Definition
| the nervous tissue contained within the spinal column; extends from the medulla oblongata to the second lumbar vertabra |
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Term
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Definition
| the 31 pairs of nerves that connect with the spinal cord |
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Term
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Definition
| a shallow furrow or groove, an on the surface of the cerebrum |
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Term
| sympathetic nervous system |
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Definition
| the pair of the autonomic nervous system that mobilizes a response to stress; increases heart rate and respiration rate and delivers more blood to skeletal muscles |
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Term
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Definition
| the junction between two neurons; also the junction between a motor neuron and a muscle or gland |
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Term
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Definition
| the part of the brain that receives all sensory impulses, except those for the sense of smell, and directs them to the proper portion of the cerebla cortex |
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Term
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Definition
| a bundle of neuron fibers within the CNS |
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Term
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Definition
| a small cavity, such as one of the cavities in the brain in which CSF is formed |
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Term
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Definition
| the autonomic nervous system |
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Term
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Definition
| myelinated tissue of the nervous system |
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