Central Nervous System (CNS)
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| The central nervous system (CNS) consists of: | the brain & spinal cord immersed in cerebrospinal fluid (CSF).
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| The brain consists of: | the cerebrum, cerebellum, & brain stem.
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| The cerebrum is divided into: | 2 hemispheres: left & right.
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| Each hemisphere of the cerebrum contains: | 4 lobes: frontal, parietal, occipital, & temporal.
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| The outer layer of the brain is: | the cerebral cortex (grey matter).
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| The tissue covered by the cerebral cortex (grey matter) containing mostly axons is: | the diencephalon (white matter).
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| Corpus callosum is: | the mass of white matter that connects the left & right hemispheres of the cerebrum.
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| Basal ganglia is: | a group of specialized clusters of grey matter that assist in coordination.
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| Functions of the cortex (cerebral cortex): | Consciousness, emotions, memory, & language. Includes all activity that occurs in cerebrum after sensory signals are recieved.
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| Drugs that effect the cerebral cortex include: | caffeine, nicotine, cocaine, & amphetamines.
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| The brainstem is the control center for: | vital survival functions.
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| The Brainstem is divided into what three parts? | the midbrain, the pons, & the medulla oblongata.
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| The cerebellum coordinates: | balance, posture, & movement.
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| The vestibular apparatus is important for: | spatial orientation (our senses of equilibrium).
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| How many ventricles are there? | four.
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| The ventricles provide: | cushioning/protection for the brain & nerves.
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| The ventricles circulate: | cerebrospinal fluid (CSF) through the brain & spinal cord.
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| The meninges are what? | the three membranes surrounding the brain & spinal cord.
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| The dura mater is: | the outer most layer of meninges.
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| The arachnoid mater is: | the cobweb-like, middle layer of meninges containing many blood vessels.
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| The pia mater is: | the thin, innermost layer of the meninges adhering directly to the brain & spinal cord.
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| The epidural space is: | between the skull & dura mater.
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| The subdural space is: | between dura mater & arachnoid mater.
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| The subarachnoid space is: | between arachnoid mater & pia mater.
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| The spinal cord begins: | at the base of the medulla oblongata.
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| The spinal cord ends at: | approximately L1/L2.
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| There are how many pairs of spinal nerves (that connect the brain & spinal cord to the rest of the body)? | thirty-one
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| How many cervical pairs (of spinal nerves)? | eight.
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| How many thoracic pairs(of spinal nerves)? | twelve.
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| How many lumbar pairs(of spinal nerves)? | five.
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| How many sacral pairs(of spinal nerves)? | five.
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| How many coccygeal pairs(of spinal nerves)? | one.
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| The spinal cord: | is the center for spinal reflexes & conducts nerve impulses.
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Created by:
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