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Diff: 5 Page Ref: 1673) The portion of the efferent branch of the nervous system that communicates to glands and cardiac muscle.Diff: 4 Page Ref: 1674) The brain and spinal cord.Diff: 3 Page Ref: 1675) Portion of the efferent nervous system that communicates with skeletal muscle.Diff: 4 Page Ref: 1676) Provides communication between peripheral organs and the brain and spinal cord.Diff: 3 Page Ref: 1677) Nervous system of the intestinal tract.Diff: 5 Page Ref: 167Answers: 1) G 2) D 3) C 4) F 5) B 6) E 7) A20
For each of the following, indicate whether the property corresponds to graded potentials, action potentials, both, or neither.A) both graded potentials and action potentialsB) neither graded potentials nor action potentialsC) action potentialsD) graded potentials8) Can sum.Diff: 4 Page Ref: 1819) Are affected by refractory periods.Diff: 4 Page Ref: 18510) Are a result of opening or closing of ion channels.Diff: 3 Page Ref: 17911) Dissipate in size as the potential moves away from the site of initiation.Diff: 4 Page Ref: 18012) All-or-none.Diff: 3 Page Ref: 18513) Can reach or exceed the sodium equilibrium potential.Diff: 4 Page Ref: 185Answers: 8) D 9) C 10) A 11) D 12) C 13) B7.4 Essay Questions1) Describe the organization of the nervous system, including a description of the different branches.Diff: 5 Page Ref: 16721
2) Describe the structure of a neuron and the important consequences of that arrangement.