nervous system
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| what are the 3 functions of the nervous system | detect changes & feel sensations; initiate appropriate responses to changes; organize information for immediate use & store it for future use
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| the central nervous system (aka CNS) consist of what 2 structures | brain and spinal cord
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| the peripheral nervous system (aka PNS) consists of what | cranial nerves and spinal nerves
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| the autonomic nervous system (aka ANS)is also part of the | PNS
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| what do we call nerve cells | neurons
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| what do the dendrites do | carry impulses to the cell body
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| what do the axons do | carry impulses away from the cell body
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| in the PNS what type of cells make up the myelin sheath | Schwann cells
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| what cells make up the myelin sheath in the CNS | oligodendrocytes
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| what is the difference between the myelin sheath in the CNS v. PNS | no neurolemmas because the schwann cells are missing
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| are the neurolemmas on the inside or outside of the myelin sheath | outside
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| there is a little space between the dendrite of one cell and the axon of another - what is this space called | synapse
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| impulses have to jump the gap so what does the synapse guarantee | one way transmission
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| what cells contribute to the blood brain barrier | astrocytes
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| what are the 2 functions of the spinal cord | transmit impulses to & from brain; integrate spinal cord reflexes
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| the spinal cord is protected from mechanical injury by what bones | vertebrae
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| mixed neurons are found only in the | CNS
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| CSF is formed where | choroid plexus
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| where in the brain is the CSF reabsorbed | arachnoid villi
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| ascending & descending tracts of the spinal cord - are they located in the white or gray matter | white matter
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| cell bodies of motor neurons and in the spinal cord, neurons & interneurons are located in the white or gray matter | gray matter
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| CSF (cerebral spinal fluid) is found where in the spinal cord structure | central canal
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| of the 31 pairs of nerves that emerge from spinal cord, how many of the pairs are in the cervical | 8
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| how many in the thoracic | 12
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| how many in the lumbar | 5
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| how many in the sacral | 5
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| how many in the small coccygeal | 1
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| the surface of the cerebal hemisphere is called gray matter or | cerebral cortex
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| in the human brain the folds of the cerebral cortex are called | gyri
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| what are the convolutions called | sulci
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| in what part of the lobe of the brain do you find "Broca's" motor speech area | frontal lobe
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| neurons are electrically insulated by the presence of what structure | myelin sheath
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| the connective tissue membrane that covers the brain and spinal cord is called | meninges
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| what is the outer layer of the connective tissue called | dura mater
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| what is the middle layer called | arachnoid space
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| the inner layer is called | pia mater
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| what area of this connective tissue membrane that covers the brain & spinal cord contains CSF | subarachnoid space
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| do we continuously or intermittently form CSF | continuously
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| how many pairs of cranial nerves do we have | 12
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| making up the autonomic nervous system are visceral motor neurons that go to what 3 things | cardiac muscle, smooth muscle & glands
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| what are the 2 divisions of the ANS | sympathetic and parasympathetic
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| when is sympathetic dominant | stressful situations
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| when is parasympathetic dominant | relaxed situations
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| name 2 neurotransmittors | acetylcholine & norepinephrine
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| name 2 inactivators | cholinesterase & MAO
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| when we perform a neurological assessment one of the 1st things we do is a | Glasgow Coma Scale
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| do you find Schwann cells in the CNS | no - only in the PNS
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| how would you define the term "reflex" | involuntary response to a stimulus
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| what are the 5 personality disorders | paranoid, schizoid, antisocial, histrionic, narcissistic
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| is autism a form of extreme hyperactivity | no
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| is tourettes syndrome a condition with a person has multiple motor and vocal tics | yes
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| is alzheimer disease the most frequent cause of dementia in people over the age of 65 | yes
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| do bipolar pts have major mood swings of hyperactivity and depressive moments | yes
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| somatoform disorders a group of disorders where a person has physical symptoms with or without an underlying cause | without
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| in munchausen syndrome does a person simulate illness to gain attention | yes
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| in sleep apnea does a person have problems sleeping | no
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