Enteric nervous system-consists of brain and spinal code

1. Why is it notnormally possible for action potentials in the postsynaptic neuronto produce an action potential in the presynaptic neuron?
A.because the axon terminals of presynaptic neurons have noacetylcholine receptors
B.because the presynaptic neurons do not have a resting membranepotential
C.because the synaptic cleft allows the diffusion of acetylcholinein one direction only
D.because the synaptic vesicles in the postsynaptic terminal areinactive
E.both because the presynaptic neurons do not have a restingmembrane potential and because the synaptic cleft allows thediffusion of
acetylcholine in one direction only

2. Disruption of the blood supply causing death of parts of thebrain also causes the group of clinical conditions referred toas
A.a myocardial infarction (a heart attack).
B.senile dementia.
C.Parkinson’s disease.
D.a cerebrovascular accident (a stroke).
E.multiple sclerosis.

3. The central nervous system disorder characterized by seizures(massive neuronal discharges) and, when motor pathways areaffected,
convulsions (involuntary muscle contractions) is
A.epilepsy.
B.Huntington’s chorea.
C.migraine headache.
D.alzheimer’s disease.
E.cerebral palsy.

4. The _________consists of the brain and spinal cord.
A.central nervous system
B.somatic motor nervous system
C.sympathetic division of the autonomic nervous system
D.parasympathetic division of the autonomic nervous system
E.afferent division of the peripheral nervous system

5. The ________ is the efferent subdivision that transmits impulsesfrom CNS to skeletal muscle.
A.central nervous system
B.somatic motor nervous system
C.sympathetic division of the autonomic nervous system
D.parasympathetic division of the autonomic nervous system
E.afferent division of the peripheral nervous system

6. The ________ consists of nerves, receptors, ganglia, andsynapses outside the CNS.
A.central nervous system
B.somatic motor nervous system
C.sympathetic division of the autonomic nervous system
D.parasympathetic division of the autonomic nervous system
E.afferent division of the peripheral nervous system

7. The _________ is the efferent subdivision that transmitsimpulses from CNS to smooth muscle, cardiac muscle, and glandsthrough
thoracic spinal nerves.
A.central nervous system
B.somatic motor nervous system
C.sympathetic division of the autonomic nervous system
D.parasympathetic division of the autonomic nervous system
E.afferent division of the peripheral nervous system

8. Which type of cell is composed of one dendrite and one axon, andis found in the eye and nose?
A.unipolar neuron
B.Schwann cell
C.bipolar neuron
D.multipolar neuron
E.pyramidal cell

9. Which type of cell has a single process that functions as anaxon and dendrite? Most sensory neurons fit into thisclassification.
A.unipolar neuron
B.Schwann cell
C.bipolar neuron
D.multipolar neuron
E.pyramidal cell

10. Which type of cell has several dendrites and one axon? Mostmotor neurons fit into this classification.
A.unipolar neuron
B.Schwann cell
C.bipolar neuron
D.multipolar neuron
E.pyramidal cell

11. Voluntary motor function, motivation, aggression, and mood areall associated with
A.the temporal lobes.
B.the frontal lobes of cerebral cortex.
C.the parietal lobes of cerebral cortex.
D.the occipital lobes of the cerebral cortex.
E.the cerebellum.

12. Reception and evaluation of most sensory information, such astouch, balance, and taste are all associated with
A.the temporal lobes.
B.the frontal lobes of cerebral cortex.
C.the parietal lobes of cerebral cortex.
D.the occipital lobes of the cerebral cortex.
E.the cerebellum.

13. Evaluation of auditory and olfactory input, memory, abstractthought, and judgment are all associated with
A.the temporal lobes.
B.the frontal lobes of cerebral cortex.
C.the parietal lobes of cerebral cortex.
D.the occipital lobes of the cerebral cortex.
E.the cerebellum.

14. The neuroglial cells that are the major supporting tissue in theCNS and forms the blood-brain barrier are the
A.astrocytes.
B.ependymal cells.
C.microglia.
D.oligodendrocytes.
E.Schwann cell.

15. All of the following neurotransmitter substances are generallyinhibitory EXCEPT:
A.serotonin
B.dopamine
C.GABA
D.glycine
E.endorphins

16. When a doctor gives a patient epidural anesthesia, they areinserting a needle between which two structures?
A.pia mater and arachnoid mater
B.body of the vertebrae and dura mater
C.spinal cord and arachnoid mater
D.periosteum and dura mater
E.dorsal root ganglion and the transverse process

17. The enteric nervous system
A.consists of the plexuses within the wall of the digestivetract.
B.includes sensory neurons, sympathetic and parasympathetic motorneurons, and enteric neurons.
C.is capable of monitoring and controlling the digestive tractindependent of the CNS.
D.stimulates glands to secrete substances into the digestivetract.
E.All of these are correct.

18. The effects of agingon the nervous system include all of the following EXCEPT:
A.decrease in the number of sensory neurons
B.neuronal function decreases
C.decrease in the number of motor neurons
D.size and weight of brain decreases
E.Neuron plasma membranes become more flexible therefore increasingthe ability of the neurons to function.

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