FREE AND STUDY GAMES ABOUT HUMAN A AND P QUIZ

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FREE AND STUDY GAMES ABOUT HUMAN A AND P QUIZ

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -20 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: Specialized cells that myelinate the fibers of neurons found in the PNS

Answer:

Schwann cells Question 2: State in which the resting potential is reversed as sodium ions rush into the neuron

Answer:

Depolarization

Question 3: State in which all voltage gated Na+ and K+ channels are closed

Answer:

Resting period Question 4: Changes, occurring within or outside the body, that affect nervous system functioning

Answer:

Stimuli

Question 5: Transmission of the depolarization wave along the neuron's membrane

Answer:

Action potential

Question 6: Gaps in a myelin sheath

Answer:

Nodes of Raniver

Question 7: Period during which potassium ions diffuse out of the neuron

Answer:

Repolarization

Question 8: Electrical condition of the plasma membrane of a resting neuron

Answer:

Polarized

Question 9: Junction or point of close contact between neurons

Answer:

Synapse Question 10: sensory receptors found in the skin, which are specialized to detect temperature, pressure changes, and pain

Answer:

cutaneous sense organs

Question 11: Collection of nerve cell bodies found outside the CNS

Answer:

Ganglion

Question 12: Bundle of nerve processes inside the CNS

Answer:

Tract

Question 13: Neuron that conducts impulses toward the CNS from the body periphery

Answer:

Afferent neuron Question 14: Sensory receptors found in muscle and tendons that detect their degree of stretch

Answer:

Proprioceptors Question 15: Chemicals released by neurons that stimulate other neurons, muscles, or glands

Answer:

Neurotransmitters Question 16: Neuron that conducts impulses away from the CNS to muscles and glands

Answer:

Efferent neuron Question 17: Process by which ATP is used to move sodium ions out of the cell and potassium ions back into the cell, completely restores the resting conditions of the neuron

Answer:

Sodium-potassium pump Question 18: Period of repolarization of the neuron during which it cannot respond to a second stimulus

Answer:

Refractory period

Question 19: the chief positive intracellular ion in a resting neuron

Answer:

Potassium ions Question 20: Neuron, serving as part of the conduction pathway between sensory and motor neurons

Answer:

Association neuron