basics
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Functions of the nervous system | Sensory: detects change tot he internal and external environment (ex: you see a red light)
Integration: processes sensory input (ex: red light means stop)
Motor: causes a response, activates muscles and glands (ex: muscle moves foot to the brake)
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| Central Nervous System (CNS) | Composed of the brain and spinal cord
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| Peripheral Nervous System (PNS) | Composed of the nerves that extend from the brain and spinal cord
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| Somatic Nervous System | Under conscious control (ex: skeletal muscles)
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| Autonomic Nervous System | Under unconscious control (ex: smooth muscle and cardiac muscle, glands)
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| Sympathetic Nervous System | Prepares the body for activity (ex: "fight or flight")
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| Parasympathetic Nervous System | Oversees digestion and gland function (ex: "rest and digest")
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| Astrocytes (neuroglia) | Provide support, regulate nutrients from capillaries, "clean up" excess neurotransmitters and ions. The nervous system's version of scar tissue.
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| Microglia (neuroglia) | Phagocytize bacteria cells and dead neurons.
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| Ependyma (neuroglia) | Lines cavities of the brain and spinal cord, forms a semipermeable barrier between cerebrospinal fluid and brain.
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| Obgodendrocytes (neuroglia) | Provide support to axons and produce Myelin sheath.
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| Neurons | Conduct impulses
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| Dendrites | Receive stimuli
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| Axon | Transmits nerve impulses from the cell body
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| Myelin sheath | Increases the speed of impulse transmission
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| Node of Ranvier | Gaps in the Myelin sheath
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| Multipolar | Have 3 or more processes
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| Bipolar | Have 2 processes
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| Unipolar | Have 1 process that divides into 2 branches
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| Sensory neuron | Conducts impulses from receptors to CNS
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| Motor neuron | Conducts impulses from the CNS to effectors (muscles or glands)
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| Interneuron | Found primarily in CNS, links sensory and motor neurons
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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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.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
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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Created by:
usillygoose93
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