Term
| Which receptors adapt most slowly? |
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Definition
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| About 90% of all parasympathetic preganglionic fibers are carried in the _____ nerve |
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Definition
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Term
| All of the following events occur when a nerve signal reaches a synaptic know. The one that occurs first is______. |
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Definition
| Calcium ions enter the synaptic knob |
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Term
| Unlike local potentials, action potentials are____. |
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Definition
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Term
| In an autopsy, a pathologist found an area of brain tissue with very high concentrations of microglia. That part of the brain most likely |
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Definition
| Had been damaged been damaged by infection, trauma, or stroke |
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Term
| Nerve fibers that stimulate the skeletal muscles of your foot have their somas in |
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Definition
| The ventral horn of the spinal cord |
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Term
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Definition
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| The ___ helps to coordinate and smooth skeletal movements |
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Definition
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Term
| The oligodendrocyte is found in the _____ and functions to ______ |
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Definition
| Central nervous system; forms the myelin sheath |
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Term
| Almost all sensory signals pass through the ____ on the way to the cerebrum |
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Definition
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Term
| White rami carry_____ neurons, while gray rami carry____ neurons |
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Definition
| myelinated preganglionic; unmyelinated postganglionic |
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Term
| Ganglia consist of ______ |
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Definition
| cell bodies of neurons in the PNS |
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Term
| Which one of the below is not controlled by the autonomic nervous system? |
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Definition
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Term
| Potentially damaging stimuli that result in pain are selectively detected by |
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Definition
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Term
| _______nerve fibers are those that innervate the skin and skeletal muscles |
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Definition
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Term
| The part of the cerebral cortex concerned with hearing is in |
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Definition
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Term
| Propranolol, on inderol, blocks b-1 receptors. This popular drug s used |
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Definition
| to lower blood pressure by decreasing the heart rate |
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Term
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Definition
| travel faster in large myelinated fibers |
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Term
| Spastic paralysis suggest involvement of |
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Definition
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Term
| A neuron that synapses on the adrenal medulla is a _____neuron which releases the neurotransmitter _______. |
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Definition
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Term
| Sensory info about discriminative touch in the lower limbs is carried in ______tracts, then decusssate, or cross over in the _______ |
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Definition
| Gracile fassiculus; medulla oblongata |
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Term
| The _____ system is characterized by long preganglionic and short postganglionic fibers. |
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Definition
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Term
| The falling phase of an action potential results from |
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Definition
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Term
| The right and left cerebral hemispheres are joined mainly by the |
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Definition
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Term
| _____connect one gyrus to another within the same hemisphere |
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Definition
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Term
| During its ________, a neuron responds only to stimuli stronger than a threshold stimulus. |
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Definition
| relative refractory period |
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Term
| transected the spinal cord between T1 and L1. This would result in _______ |
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Definition
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Term
| In _________, several EPSPs occurring in quick succession depolarize a neuron to threshold |
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Definition
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Term
| In a chemical synapse, the synaptic knobs of the presynaptic neurons contain _____, while the membrane of the postsynaptic neuron contains |
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Definition
| synaptic vesicles, ligand regulated gates |
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Term
| In a myelinated neuron carrying an action potential, the node of ranvier will be stimulated by |
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Definition
| sodium ions flowing down the fiber under the axolemma to the next adjacent node of ranvier |
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Term
| One of the functions associated with the limbic system is |
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Definition
| feelings of fear, peace, anger |
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Term
| The signals that control your handwriting travel down the spinal cord in |
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Definition
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Term
| Loss of ability to perfom skilled motor activities such as piano with no paralysis in specific muscles suggest damage in the |
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Definition
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Term
| Spinocerebellar tracts ______ |
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Definition
| carry proprioceptive inputs to the cerebellum |
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Term
| Second-order neurons synapse with neurons in the |
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Definition
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Term
| Which lobe of the cerebrum is most concerned with vision |
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Definition
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Term
| Your ______ division will stimulate an increase in heart rate & blood pressure. Being able to circle the right answer is ____ |
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Definition
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Term
| This parasympathetic nerve adjusts the heart rate |
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Definition
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Term
| summation occurs in the _____ of a neuron |
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Definition
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Definition
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Term
| The blood brain barrier is most permeable to which of the following chemical groups |
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Definition
| glucose, water, oxygen, alcohol, caffeine |
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Term
| If a nerve fiber fires 300 times/sec at time A and 500 times/sec at B it means at time B |
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Definition
| the stimulus was stronger |
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Term
| The ventral root carries ______ neurons, while the dorsal root carries _______ neurons |
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Definition
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Term
| The charge difference across the plasma membrane in muscles and nerve cells is called the _____ measures about _____ mV |
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Definition
| resting membrane potential; -70 |
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Term
| In a neuronal circuit, input to one neuron leads to output from multiple neurons |
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Definition
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Term
| Once a sympathetic preganglionic axon reaches a trunk ganglion it can do all but which one of the following |
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Definition
| synapse with a parasympathetic neuron in the same trunk ganglion |
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Term
| In a motor neuron i the body were stimulated by an electrode placed about mid point along the length of the axon |
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Definition
| the impulse would spread bidirectionally |
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Term
| In the ANS, the preganglionic neuron release___, while the post ganglionic neuron release |
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Definition
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Term
| The spinal cord ends at about which vertebra |
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Definition
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Term
| The cutaneous regions innervated by specific spinal nerves are each called a |
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Definition
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Term
| When a neuron is depolarized to threshold |
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Definition
| voltage regulated Na gates open |
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Term
| The brain and spinal cord constitute the _______ nervous system |
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Definition
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Term
| The blood brain barrier consists of tight junctions in the |
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Definition
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Term
| If you can trace a bicycle but not know what it is, you have damage to |
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Definition
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Term
| Which of the following motor tracts is involved in reflex movement of the head in response to auditory stimuli |
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Definition
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