Chapter 6: The Nervous System
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Central Nervous System | the division of the nervous system consisting of the brain and spinal cord
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| peripheral nervous system | the division of the nervous system consisting of allof the nerves located outside the central nervous system
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| brain | the part of the central nervous system that is locted in the skull and controls most function in the body
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| spinal cord | the thick column of nervous tissue that links the brain to most of the nerves in the peripheral nervous system
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| cerebrum | The part of the brain that interprets input from the senses, controls movement, and carries out complex mental processes.
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| cerebellum | THe part of the brain that coordintates the actions of the muscles and helps maintain balance.
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| brain stem | The part of the brain that lies between the cerebellum and spinal cord and controls the body's involuntary actions.
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| somatic nervous system | the goup of nerves in the peripheral nervous system that controls voluntary action
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| autonomic nervous systemm | The group of nerves in the peripheral nervous system that controls involuntary actions.
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| reflex | an automatic response that occurs rabidly and without conscious control
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| concussion | a bruiselike injury of the brain that occurs when the soft tissue of the brain collide against the skull
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| synapse | the junction where one neuron can transfer an impulse to the next structure
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| sensory neuron | a neuron that picks up stimuli from the internal or external environment and converts each stimulus into a nerve impulse
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| nerve | a bundle of nerve fibers
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| motor neuron | a neuron that sends an impulse to a muscle, or gland, causing the muscle or gland to react
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| interneuron | a neuron that carries nerve impulses from one neuron to another
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| axon | a threadlike extension of a neuron that carries nerve impulses away from the cell body
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| dendrite | a threadlike extension of a neuron that carries nerve impulses toward the cell body
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| stimulus | any change or signal in the environment that can make an organism react in some way
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| neuron | a cell that carries information through the nervous system
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| nerve impulse | the message carried by a neuron
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| response | what the body does in reaction to a stimulus
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| cornea | the clear tisse that cover the front of the eyes
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| pupil | the opening through which light enters the eyes
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| iris | the cirular stucture that surrounds the pupil and regulates the amount of light entering the eye
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| lens | the flexible stucture that focuses light that has entered the eye
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| retina | the layer or receptor cells at the back of the ey on which an image is focused
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| nearsightedness | the condition in which a person can see mearby objects clearly
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| farsightedness | the condition in which a person can see distant object clearly
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| eardrum | the membrane that separates the outer ear from the middle ear, and that vibrates when sound waves strike it
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| cochlea | a snail-shaped tube in the inner ear that is lined with receptor cells that respond to sound
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| semicircular canal | structures in the inner ear that are responsible for the sense of balance
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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