BIOLOGY
5th Edition
ISBN: 9781265202859
Author: BROOKER
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Chapter 42, Problem 4TY
Summary Introduction
Introduction:
Neurons can be defined as a part or unit of the nervous system that is involved in carrying electrical impulses. The neurons are responsible for the transmission of information in the form of electrical signals.
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Sensory neurons transmit information towards the central nervous system.
Which of the following is true concerning the movement of peripheral-
information towards the central nervous system?
A. Dendrites of the sensory neurons synapse with interneurons of the
spinal cord.
B. Axons of the sensory neurons synapse with motor neurons of the muscles
involved in the spinal reflex.
C. Axons of the motor neurons synapse with the interneurons of the spinal cord.
D. Axons of the sensory neurons synapse with the interneurons of the spinal
cord.
The integrative functions of the nervous system are performed mainly bya. afferent neurons.b. efferent neurons.c. neuroglia.d. sensory neurons.e. interneurons.
. Neurotransmitter substances are stored in vesicles located in specialized portions of thea. neuron cell body. c. dendrite.b. axon. d. postsynaptic membrane.
Chapter 42 Solutions
BIOLOGY
Ch. 42.1 - Prob. 1CCCh. 42.2 - Prob. 1CSCh. 42.3 - Prob. 1CSCh. 42.3 - Prob. 2CSCh. 42.3 - Prob. 1CCCh. 42.3 - Prob. 2CCCh. 42.4 - What key prior observation led Loewi to develop...Ch. 42.4 - CoreSKILL The results of Loewis experiment...Ch. 42.4 - Prob. 3EQCh. 42 - Prob. 1TY
Ch. 42 - Prob. 2TYCh. 42 - The myelin sheath a. is produced by neurons in the...Ch. 42 - Prob. 4TYCh. 42 - Prob. 5TYCh. 42 - Which of the following contribute(s) to the...Ch. 42 - Prob. 7TYCh. 42 - Prob. 8TYCh. 42 - Prob. 9TYCh. 42 - Prob. 10TYCh. 42 - Prob. 1CQCh. 42 - Prob. 2CQCh. 42 - Prob. 3CQCh. 42 - Describe the difference between an electrical...Ch. 42 - Prob. 2COQ
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- Which of the following is not a part of the periphrial nervous system (PNS)? a.somatic nervous system b.autonomic nervous system c.sensory neurons d. motor neurons e. spinal cordarrow_forwardOligodendrocytes and Schwann cells generate a fatty substance known as a. glial. c. myelin. b. soma. d. neurilemma.arrow_forwardMatch the description with the statement that best describes the following neural circuits. a single post-synaptic neuron receives input from multiple pre- synaptic neurons causes the stimulation of the post-synaptic neuron continually similar to a positive feedback response A. diverging circuits B. converging circuits C. reverberating circuits causes a longer lasting stimulus of the post-synaptic neuron D. parallel after discharge circuits a single pre-synaptic neuron synapses with multiple post-synaptic neurons Moving to another question will save this response. Photos A39 DEC 3 17 étvarrow_forward
- Mark the following statements as true of false. If a statement is false, correct it to make a true statement. a. Ependymal cells regulate the composition and movement of cerebrospinal fluid. b. Schwann cells make myelin in the peripheral nervous system c. Microglia are neuroglial cells with an immune function. d. Oligodendrocytes repair damaged axons in the peripheral nervous system. e. Astrocytes regulate the extracellular environment of the brain and are key components of the blood-brain barrier. f. Oligodendrocytes and Schwann cells perform similar functions in different parts of the nervous system.arrow_forwardThe axons of myelinated neurons are imbedded in a protective covering of A. Schwann cells B. gray matter. C. nodes of Ranvier D. synaptic knobs.arrow_forwardThe rate of information transmission from the central nervous system (CNS) to an effector organ will be slowed by... A. increasing the diameter of the axons B. increasing the number of nerve cells between the CNS and the effector organ C. adding a myelin sheath to the axons D. increasing the distance between the nodes of Ranvier E. None of the abovearrow_forward
- A bundle of axons in the peripheral nervous system is called a: A. Neuron B. Ganglion 1 C. Tractarrow_forward32) In order for a nerve impulse to be transmitted across a synapse, a neurotransmitter must be released froma. an axon terminal.b. a dendrite.c. a soma.d. an axon hillock. 33) What part of a neuron is responsible for receiving information?a. Axon.b. Node of Ranvier. c. Dendrite.d. Myelin sheath.arrow_forwardWhich of the following is/are found only in the PNS? a. Nerves b. Astrocytes с. Мyelin d. Lipofuscin e. Unmyelinated axonsarrow_forward
- The nervous system that consists of 12 pairs of cranial nerves and 31 pairs of spinal nerves is calleda. central.b. peripheral.c. sympathetic.d. parasympathetic.arrow_forwardEmergency room doctors often shine a light into the eyes of patients with head injuries to test their pupillary reflex. The structure that relays the information between the optic nerve and the motor neuron, and the division of the nervous system that the structure is part of , respectively are: Select one: a. an interneuron and the peripheral nervous system b. the occipital lobe and the peripheral nervous system c. the occipital lobe and the central nervous system d. an interneuron and the central nervous systemarrow_forwardwhich of the following does not describe the somatic nervous system? A. motor neurons that innervate glands, cardiac and skeletal muscle B. a system of motor neurons that innervate all muscle cells c. voluntary nervous system d. general sensory for skin and joints.arrow_forward
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