Term
| How many segments in the spinal cord? |
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Definition
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Term
| What is the central nervous system? |
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Definition
| The brain and the spinal cord |
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Term
| What part of the brain is involved in the autonomic bodily functions ie breathing, blood pressure, digestion? |
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Definition
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Term
| the specialist membranes around the spinal cord is...? |
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Definition
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Term
| the spinal cord contains what type of nerves? |
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Definition
| mixed nerves, sensory and motor |
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Term
| What is the tough outermost covering of the spinal cord? |
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Definition
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Term
| which meninges is tightly bound to the nueral tissue and closely follows the contours of the brain? |
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Definition
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Term
| the posterior horns of the spinal cord contain the...? |
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Definition
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Term
| the anterior horns of the spinal cord contain the....? |
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Definition
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Term
| what brain structure links the nervous system and the endocrine system? |
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Definition
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Term
| what highly vascular structure adheres closely to the surface of the brain? |
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Definition
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Term
| which space does the cerebrospinal fluid circulate? |
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Definition
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Term
| higher conscious thought and highest level processing is contained in the....? |
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Definition
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Term
| voluntary control is by the ------- nervous system? |
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Definition
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Term
| the ------- part of the nervous system brings information TO the central nervous system |
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Definition
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Term
| the axon is connected to the cell body by the.....? |
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Definition
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Term
| neurotransmitters are released from....? |
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Definition
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Term
| where do neurons communicate with each other? |
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Definition
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Term
| what is the ion pump doing at the normal resting potential of the neuron? |
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Definition
| two potassium in and three sodium out |
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Term
| membrane channels that are always open are called...? |
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Definition
| leakage or passive channels |
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Term
| when the sodium channels are open what happens in the neuron |
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Definition
| depolarization ie the cell becomes positively charged |
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Term
| where can voltage regulated channels be found? |
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Definition
| along the membrane of the axon |
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Term
| how many pairs of cranial nerves are there? |
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Definition
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Term
| During saltatory conduction |
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Definition
| action potentials occur at successive nodes along the length of the stimulated axon |
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Term
| The all-or-none principle states that |
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Definition
| all stimuli great enough to bring the membrane to threshold will produce identical action potentials. |
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Term
| The sodium-potassium exchange pump |
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Definition
| requires ATP to function. |
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Term
| Which type of synapse dominates the nervous system? |
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Definition
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Term
| The ion needed to initiate the release of acetylcholine into the synaptic cleft is |
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Definition
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Term
| Cholinergic synapses release the neurotransmitter |
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Definition
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Term
| The effect that a neurotransmitter has on the postsynaptic membrane depends on |
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Definition
| the characteristics of the receptors. |
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Term
| EPSPs (excitatory postsynaptic potentials) occur when |
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Definition
| sodium channels are opened |
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Term
| If the axolemma becomes more permeable to potassium ion |
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Definition
| it will take a stimulus of larger magnitude to initiate an action potential. |
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Term
| what is the function of the myelin sheath? |
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Definition
| to increase the rate of impusle along the axon |
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Term
| When cholinergic receptors are stimulated, |
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Definition
| sodium ions enter the postsynaptic neuron. |
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Term
| Which type of membrane channels are found at dendrites and the cell body |
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Definition
| chemically regulated Na+ and K+ channels |
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