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18 Cards in this Set
- Front
- Back
Central Nervous System (CNS)
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brain and spinal cord
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Brain
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portion of the central nervous system contained within the cranium
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cerebrum
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largest portion of the brain; divided into right and left halves, known as the cerebral hemispheres, which are connected by a bridge of nerve fibers called the corpus callosum; lobes of the cerebrum are named after the skull bones they underlie
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frontal lobe
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anterior section of each cerebral hemisphere; responsible for voluntary muscle movement and personality
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parietal lobe
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portion posterior to the frontal lobe; responsible for sensations such as pain, temperature, and touch
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temporal lobe
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portion that lies below the frontal lobe; responsible for hearing, taste, and smell
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occipital lobe
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portion posterior to the parietal and temporal lobes; responsible for vision
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cerebral cortex
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outer layer of the cerebrum consisting of grey matter; responsible for higher mental functions (cortex = bark)
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thalamus, diencephalon
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each of two grey matter nuclei deep within the brain; responsible for relaying sensory information to the cortex
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gyri
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convolutions (mounds) of the cerebral hemispheres
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sulci
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shallow grooves that separate gyri
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fissures
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deep grooves in the brain
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cerebellum
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portion of the brain located below the occipital lobes of the cerebrum; responsible for control and coordination of skeletal muscles
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brainstem
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region of the brain that serves as a relay between the cerebrum, cerebellum, and spinal cord; responsible for breathing, heart rate, and body temperature; the three levels are the mesencephalon (midbrain), pons, and medulla oblongata
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ventricles
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series of interconnected cavities within the cerebral hemispheres and brainstem filled with cerebrospinal fluid
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Cerebrospinal Fluid (CSF)
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plasma-like clear fluid circulating in and around the brain and spinal cord
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spinal cord
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column of nervous tissue from the brainstem through the vertebrae; responsible for nerve conduction to and from the brain and the body
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meninges
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three membranes that cover the brain and spinal cord, consisting of the dura, pia and arachnoid mater.
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