Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 49, Problem 14TYK
Summary Introduction
Introduction: The three primary organs of the nervous system are the spinal cord, brain, and sensory organs. Brain is the center of the nervous system and performs critical functions in regulating the heart, consciousness, and breathing.
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A) The neuron labelled "D" in the figure is what class of functional neuron?: 3rd-order? lower motor neurone? upper motor neurone? 2nd-order? bipolar? unipolar?
B) The message in the pleural pathway in figure 3 comes from the: occipital lobe? skeletal muscle? somatosensoty cortex? temporal lobe? receptors? parietal lobe? frontal lobe?
C) Damage to this structure in the figure would affect the ability to move your RIGHT leg: A, B, C, D, E, F, G
Which of the following statements about the cerebral cortex is FALSE?
A) The cortex in primates (and especially humans) has more sulci and gyri than in lower mammals.
B) The neurons in the cortex are organized into groups of 80 to 100 interconnected cells, arranged in vertical columns.
C) The human cortex is arranged into six layers of neurons (although a particular layer may be absent in some areas).
D) The cerebral hemispheres are organized into five lobes, named after the skull bone covering them.
Which of the following brain regions is not correctly matched to itsfunction?a. The medulla oblongata regulates heartbeat, breathing, and bloodpressure.b. The cerebellum coordinates voluntary muscle movements.c. The thalamus secretes melatonin, which regulates daily bodyrhythms.d. The midbrain acts as a refl ex center for visual, auditory, andtactile responses.
Chapter 49 Solutions
Study Guide for Campbell Biology
Ch. 49 - The organization of an organisms nervous system...Ch. 49 - Prob. 2IQCh. 49 - Prob. 3IQCh. 49 - Identify the structures (a-g) in the following...Ch. 49 - Prob. 5IQCh. 49 - Action potentials are initiated more readily in...Ch. 49 - Prob. 1SYKCh. 49 - Prob. 1TYKCh. 49 - Prob. 2TYKCh. 49 - Prob. 3TYK
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- How do neurotransmitters directly affect the postsynaptic neuron? A)They cause a change in the electrical potential, exciting the neuron and causing it to fire b)They cause a change in the electrical potential, either exciting or inhibiting the next neuron. C)They cause a change in the electrical potential, inhibiting the neuron and stopping it from fi d)They connect with the appropriate receptor on the postsynaptic neuronarrow_forwardA presynaptic neuron in the cerebrum transmits information to hundreds of other neurons. This process is an example of (a) convergence (b) divergence (c) temporal summation (d) spatial summation (e) a graded potentialarrow_forwardMatch the terms with their descriptions. ____ thalamus a. coordinates motor activity ____ dopamine b. connects the hemispheres ____ limbic system c. protects brain and spinal cord from some toxins ____ corpus callosum d. one type of neurotransmitter ____ cerebral cortex e. support team for neurons ____ cerebellum f. wrap brain and spinal cord ____ neuroglia g. roles in emotion and memory ____ ganglion h. most complex integration ____ blood-brain barrier i. cluster of neuron cell bodies ____ meninges j. regulates sleep-wake cyclearrow_forward
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