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| 8641437815 | Acetylcholine | Enables muscle action, learning, and memory | 0 | |
| 8641437816 | action potential | nerve impulse | 1 | |
| 8641437817 | afferent nervous system | System that carries information | 2 | |
| 8641437818 | Axon | A threadlike extension of a neuron that carries nerve impulses away from the cell body. | 3 | |
| 8641437819 | brain stem | Connects the brain and spinal cord | 4 | |
| 8641437820 | Broca's area | controls language expression | 5 | |
| 8641437821 | central nervous system | the brain and spinal cord | 6 | |
| 8641437822 | cerebral cortex | outer region of the cerebrum containing sheets of nerve cells | 7 | |
| 8641437823 | cerebrospinal fluid | the fluid in and around the brain and spinal cord | 8 | |
| 8641437824 | Cerebrum | Largest part of the brain | 9 | |
| 8641437825 | corpus callosum | Nerves that enable communication between the right and left cerebral hemispheres. | 10 | |
| 8641437826 | Dendrites | receive messages from other cells | 11 | |
| 8641437827 | dura mater | tough outer layer of the meninges | 12 | |
| 8641437828 | efferent nervous system | Carries info from CNS to skeletal muscle | 13 | |
| 8641437829 | Electroencephalogram (EEG) | An amplified recording of the waves of electrical activity that sweep across the brain's surface | 14 | |
| 8641437830 | foramen magnum | A large opening at the base of the skull through which the brain connects to the spinal cord. | 15 | |
| 8641437831 | gray matter | cell bodies | 16 | |
| 8641437832 | hydrocephalus | accumulation of fluid in the spaces of the brain | 17 | |
| 8641437833 | Hypothalamus | brain region controlling the pituitary gland | 18 | |
| 8641437834 | Interneurons | connect sensory and motor neurons | 19 | |
| 8641437835 | limbic system | emotion and memory | 20 | |
| 8641437836 | medulla oblongata | Identify the structure. | 21 | |
| 8641437837 | Meninges | The membranes that cover the brain and spinal cord (3) | 22 | |
| 8641437838 | motor neurons | neurons that carry outgoing information from the brain and spinal cord to the muscles and glands | 23 | |
| 8641437839 | myelin sheath | A layer of electrical insulation that surrounds the axon. | 24 | |
| 8641437840 | Neuroglia | Supporting cells | 25 | |
| 8641437841 | Neuron | A nerve cell; the basic building block of the nervous system. | 26 | |
| 8641437842 | Neurotransmitters | chemical messengers that cross the synaptic gaps between neurons | 27 | |
| 8641437843 | Nodes of Ranvier | gaps in myelin sheath | 28 | |
| 8641437844 | Norepinephrine | Helps control alertness and arousal | 29 | |
| 8641437845 | parasympathetic nervous system | rest and digest | 30 | |
| 8641437846 | peripheral nervous system | the sensory and motor neurons that connect the central nervous system to the rest of the body | 31 | |
| 8641437847 | pineal gland | secretes melatonin | 32 | |
| 8641437848 | Schwann cells | produce myelin in PNS | 33 | |
| 8641437849 | sensory neurons | neurons that carry incoming information from the sensory receptors to the brain and spinal cord | 34 | |
| 8641437850 | somatic nervous system | the division of the peripheral nervous system that controls the body's skeletal muscles(voluntary ) | 35 | |
| 8641437851 | sympathetic nervous system | fight or flight | 36 | |
| 8641437852 | Synapse | Gap between neurons | 37 | |
| 8641437853 | synaptic cleft | a gap into which neurotransmitters are released from the axon terminal | 38 | |
| 8641437854 | tract | draw/pull/drag | 39 | |
| 8641437855 | visceral nervous system | autonomic nervous system | 40 | |
| 8641437856 | Wernicke's area | language comprehension | 41 | |
| 8641437857 | white matter | Whitish nervous tissue of the CNS consisting of neurons and their myelin sheaths. | 42 | |
| 8641443817 | nerve | fiber that transmits information in the body | 43 |
