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52 Cards in this Set
- Front
- Back
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Where does the nervous system receive information |
Both external and internal sensory receptors |
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2 subdivisions of the nervous system |
Central nervous system Peripheral nervous system |
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The central nervous system consists of what |
Brain Spinal cord |
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The nerves in the peripheral nervous system |
Cranial nerves Spinal nerves |
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Sensory nerves carry info where |
To the central nervous system |
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Motor nerves carry commands where |
Away from the central nervous system |
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All portions of the nervous system are composed of what |
Nervous tissue |
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Two basic types of cells in nervous tissue |
Neurons Neuroglial cells |
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3 parts of a neuron |
Dendrites A nerve cell body axon |
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The point at which the axon of one neuron meets the dendrite of the next neuron is called what |
Synapse |
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The gap between 2 neurons is called what |
Synaptic cleft |
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Do neuroglial cells conduct electrical impulses |
No |
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What matter(s) does the central nervous system consist of |
Gray matter White matter |
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Gray matter is comprised of what |
Uncovered cell bodies and dendrites |
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What is white matter |
Myelinated nerve fibers |
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Bundles of nerve fibers interconnecting different parts of the nervous system is called what |
Tracts |
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The central nervous system is encased and protected by 3 membranes known as what |
Meninges |
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4 sections of the brain |
Cerebrum Cerebellum Diencephalon Brain stem |
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Largest section of the brain |
Cerebrum |
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What is the area of the brain that processes thoughts, judgements, memory, problem solving, and language |
Cerebrum |
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Outer layer of the cerebrum |
Cerebral cortex |
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The cerebrum is subdivided into left and right halves called what |
Cerebral hemispheres |
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Each hemisphere of the brain has how many lobes |
4 |
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What are the 4 lobes in each hemisphere |
Frontal lobe Parietal lobe Occipital lobe Temporal lobe |
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Frontal lobe |
Controls motor function Personality Speech |
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Parietal lobe |
Most superior portion of the cerebrum Receives and interprets nerve impulses from sensory receptors and interprets language |
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Occipital lobe |
Controls vision |
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Temporal lobe |
Left and right lateral portion of the cerebrum Controls heating and smell |
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The diencephalon contains the 2 most critical areas of the brain, what are they |
Thalamus Hypothalamus |
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Our pain perception is controlled by what part of the brain |
Thalamus |
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The hypothalamus is responsible for controlling what |
The autonomic nervous system Cardiovascular system Digestive system The release of hormones from the pituitary gland |
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What is the part in the brain that aids in coordinating voluntary body movements and maintaining balance |
Cerebellum |
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3 components of the brain stem |
Midbrain Pons Medulla oblongata |
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What connects the cerebellum to the rest of the brain |
Pons |
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What connects the brain to the spinal cord |
Medulla oblongata |
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The brain has 4 interconnected cavities called what |
Ventricles |
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What do the ventricles in the brain contain |
Cerebrospinal fluid |
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The 33 vertebrae of the backbone line up to form a canal for the spinal cord called what |
Spinal cavity or vertebral canal |
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What do ascending tracts do |
Carry sensory info up to the brain |
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What do descending tracts do |
Carry motor commands down from the brain to a peripheral nerve |
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How many pairs of cranial nerves are there |
12 |
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How many pairs of cranial nerves are there |
12 |
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How many pairs of spinal nerves are there |
31 pairs |
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The point where either type of nerve (cranial or spinal) is attached to the central nervous system is called what |
Nerve root |
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Another name for sensory neurons |
Afferent neurons |
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Another name for motor neurons |
Efferent neurons |
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The nerves in the peripheral nervous system are subdivided into 2 divisions called what |
Autonomic nervous system Somatic nerves |
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The autonomic nervous system is involved with what |
The control of involuntary or unconscious bodily functions |
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2 branches of the autonomic nervous system |
Sympathetic branch Parasympathetic branch |
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Sympathetic nerves control what |
The “fight-or-flight” reaction during times of stress and crisis |
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The parasympathetic nerves control what |
The “rest-and-digest” reaction |
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Somatic nerves are involved with what |
Conscious and voluntary activities of the body |
