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neurotransmitter chemical released at the ends of some nerve cells |
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middle layer of the tree membranes (meninges) that surround the brain and spinal cord. |
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Nerves that control involuntary body functions of muscles, glands, and internal organs. |
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Microscopic fiber that carries the nervous impulse along a nerve cell. |
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lower portion of the brain that connects the cerebrum with the spinal cord. The pons and the medulla oblongata are part of the brainstem. |
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central nervous system (cns) |
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Brain and the spinal cord |
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Part of the brain that coordinates muscle movements and maintains balance. |
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outer region of the cerebrum; containing sheets of nerve cells; gray matter of the brain. |
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cerebrospinal fluid (CSF) |
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Fluid that circulates throughout the brain and spinal cord. |
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Largest part of the brain; responsible for voluntary muscular activity. vision, speech, taste, hearing, thought, and memory. |
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thick, outermost layer of the meninges surrounding and protecting the brain and spinal cord. |
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portion of the brain beneath the thalamus; controls SLEEP, APPITITE, BODY TEMP, AND SECRETIONS FROM THE PITUITARY GLAND |
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the part of the brain just above the spinal cord; contols brathing , heart beat, and size of blood vessels; nerve fibers cross over here. |
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three protective membranes that surround the brain and spinal cord |
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carry messages away from the brain and spinal cord to muscles and organs |
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macroscopic structure consisting of axons and dendrites in bundles like strands of rope. |
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a nerve cell; carries impulses throughout the body. there are about 10 billion neurons. |
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Involuntary, autonomic nerves that help regulate body functions like heart rate and respiration |
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peripheral nervous system |
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Nerves outside that brain and spinal cord; cranial, spinal and autonomic nerves |
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Large, interlacing network of nerves. |
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organ that receives a nercous stimulation and passes it on to nerves within the body. the skin, ears,eyes, and taste buds are receptors. |
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carry messages to the brain and spinal cord from a receptor |
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change (light, sound, touch)in the internal or external enviroment that evokes a response |
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autonomic nerves that influence body functions involuntarily in times of stress |
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the space through which a nercous impulse is transmitted from one neuron to another or from a neuron to another cell, such as a muscle or gland cell. |
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meninges herniate outward |
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spinalcord and meninges herniate outward |
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