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Bio HWK

Definitions for module 4- brain stuff

TermDefinition
Cerebrum The anterior and largest part of the brain, consisting of two hemispheres which controls voluntary movements and mental actions.
Sensory areas The regions of the cerebral cortex that recieve impulses from the sensory nerves.
Somatic neurone A motor neurone forming a direct synapse with striated muscle fibers via a motor end plate.
Fight or flight response An automatic bodilly response to stress which prepares the body for action.
Cerebellum The part of the brain at the back of the skull in vertebrates. Its function is to coordinate and regulate muscular activity.
Association areas A region of the brain that connects sensory and motor areas, and thought to be concerned with higher mental activities.
Autonomic neurone Neurones associated with the ANS, involved in controlling automatic response, e.g. coordination of circulatory system.
Central nervous system The brain and spinal cord. It has control over the coordination of the whole nervous system.
Medulla oblongata A section of the brain stem that contains centres for the control of various unconscious bodilly functions via the autonomic nervous system.
Motor area An area of the cerebral cortex within which the neurones are responsible for driving motor functions.
Sympathetic neurone Neurones involved in the sympathetic nervous system (SNS) which is one of three major parts of the autonomic nervous system.
Peripheral nervous system The sensory and motor neurones connecting the central nervous systemto the sensors and effectors around the body.
Hypothalamus A portion of the brain that contains various receptors that monitor the blood. also involved in controlling the autonomic nervous system.
Antagonistic Working agianst each other ina pair.
Endocrine system A system of glands that secrete hormones involved in the control of bodily matabolic activity directly into the blood.
Parasympathetic neurone Neurones involved in the parasympathetic nervous system which controls things such as sleep, digestion and relaxing of muscles.
Nervous system The network of nerve cells and fibers that transmits nerve impulses between parts of the body.
Created by: BillieStevens
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