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 5TYK
Summary Introduction
Introduction: The nervous system consists of CNS (central nervous system) and PNS (peripheral nervous system). The sensory afferent neurons, efferent motor system, and the autonomic nervous system are the branches of PNS.
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Students have asked these similar questions
When the dentist gives you a lidocaine injection before drilling into a tooth, she numbs a nerve in your mouth, which is a
A)cranial nerve and part of the peripheral nervous system.
B)cranial nerve and part of the central nervous system.
C)spinal nerve and part of the peripheral nervous system.
D)spinal nerve and part of the central nervous system.
Parasympathetic nerves _____.
A
cause smooth muscle in blood vessel walls to contract
B
cause smooth muscle in blood vessel walls to relax
C
have no role in the innervation of blood vessels
Galen performed vivisection, or live experimentation, on animals to learn about the nervous system. What did Galen discover with his squealing pig experiment?
A) Galen correctly identified that peripheral nerves could control bodily function
B) Galen correctly identified the division between the central and peripheral nervous systems
C) Galen demonstrated that tendons, ligaments and nerves were separate entities
D) Galen demonstated that transection of individual nerves had little functional consequence.
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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- You stick your tongue out to make your friend laugh. The structure of the brain that controls this movement, and the division of the nervous system it is part of, respectively are: Select one: a. the cerebrum and the autonomic nervous system b. the cerebrum and the somatic nervous system c. the medulla oblongota and the autonomic nervous system d. the medulla oblongota and the somatic nervous systemarrow_forwardActivation of the sympathetic nervous system causes: a. increased blood flow into the skin b. a decreased heart rate c. an increased heart rate d. increased digestionarrow_forwardMultiple sclerosis is a neurodegenerative disease in which the body’s immune system attacks and breaks down the white matter in the nervous system. A. What is another word (other than “white matter”) for the structure or type of cells that are affected in patients with MS? B. Given what these cells/structures do, what effect on neural transmission do you think MS has?arrow_forward
- Sympathetic stimulation to lung tissue A. Causes activation of beta2 receptors which contract smooth muscles of airways. B. Causes activation of beta1 receptors which relax smooth muscles of airways C. Causes activation of beta2 receptors which relax smooth muscles of airways. D. Causes activation of beta1 receptors which contract smooth muscles of airwaysarrow_forwardWhich of the three types of nerves contains both sensory and motor neurons? a spinal cord b motor nerves c sensory nerves d mixed nervesarrow_forwardThe process of myelination results in an increase in white matter. Myelination happens for all brain regions. Because of increases in myelination A) At the same time; neural signals can travel through the brain faster B) At different times; neural signals can travel through the brain faster C) At different times; neurogenesis is improved D) At the same time; neurogenesis is improvedarrow_forward
- Emergency 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_forwardNeurotransmitters are released by_____ . a. axon terminals c. dendrites b. a neuron cell body d. glial cellsarrow_forwardMost human axons have a myelin sheath that_____ . a. prevents action potentials from moving backward b. increases the speed of action potential conduction c. consists of specialized interneurons d. increases the size of action potentialsarrow_forward
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