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Nervous System

Nervous System Vocabulary Terms

Blood vessels (capillaries) that selectively let certain substances enter brain tissue and keep others out blood-brain barrier
Type of glial (neuroglial) cell that transports water and salts from capillaries astrocyte
Collection of spinal nerves below the end of the spinal cord cauda equina
Neurotransmitter chemical released at the ends of nerve cells acetylcholine
Microscopic fiber that carries the nervous impulse along a nerve cell brainstem
Carries messages toward the brain and spinal cord from receptors axon
Lower portion of the brain that connects the cerebrum with the spinal cord afferent nerve
Part of a nerve cell that contains the nucleus cell body
Middle layer of the meninges surrounding the brain and spinal cord arachnoid membrane
Contains nerves that control involuntary body functions or muscles, glands, and internal organs autonomic nervous system
Motor nerve that carries messages away from the brain and spinal cord efferent nerve
Largest part of the brain cerebrum
Includes the brain and spinal cord central nervous system
Microscopic branching fiber of a nerve cell that is the first to receive a nervous impulse dendrite
Posterior part of the brain; coordinates muscle movements and maintains balance cerebellum
Glial (neuroglial) cell that lines membranes within the brain and spinal cord; helps form cerebrospinal fluid ependymal cell
Outer region of the cerebrum; contains sheets of nerves cerebral cortex
Circulates throughout the brain and spinal cord cerebrospinal fluid
Thick, outermost layer of the meninges dura mater
Twelve pairs of nerves that carry messages to and from the brain cranial nerves
Created by: hannahdege