BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 29, Problem 10SA
Summary Introduction
Introduction:
The nervous system gathers information about the internal and external environment of an organism. It integrates this information, processes it, and then sends commands to glands and muscles. Neurons are cells that transmit electrical signals along its membrane and sends chemical signals to other cells.
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As humans age, there is a decrease in the
A
highest frequencies that we are able to hear.
B
highest amplitudes that we are able to hear.
C
ability to hear low frequency sounds.
D
ability to hear high amplitude sounds.
Which of these was NOT a theory of a nerve function near the end of the 17th century?
A. nerve signal through secreted droplets of fluid
B. Nerve signal by actual movement of cells from different body areas
C. Spirits running through hollow nerves
D. Nerves signal through vibrations
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 airways
Chapter 29 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 29 - ______ relay messages from the brain and spinal...Ch. 29 - Prob. 2SACh. 29 - Action potentials occur when ______. a. potassium...Ch. 29 - Neurotransmitters are released by _______. a. axon...Ch. 29 - Prob. 5SACh. 29 - Prob. 6SACh. 29 - Prob. 7SACh. 29 - Prob. 8SACh. 29 - Prob. 9SACh. 29 - Prob. 10SA
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- Test your Understanding Know and Comprehend A radially symmetrical animal such as Hydra is likely to have (a) a forebrain (b) a nerve net (c) cerebral ganglia (d) a ventral nerve cord (e) cerebral ganglia and a nerve netarrow_forwardBaroreceptors are a class of mechanoreceptor that respond toa. light touch.b. pain stimuli.c. increase in muscle tension.d. changes in pressure.arrow_forwardIf someone where has damaged their spinal cord only on the left side, which of the follwoing would be true? A) They would not be able to feel or have a sense of proprioception on thier left side below the lesion. B) They would not be able to feel or have a sense of proprioception on thier right side above the lesion. C) They can't move the right side of their body below the lesion. D) They won't feel pain on the left side below the lesion.arrow_forward
- Damage to which structure would have the largest impact on input to the cerebellum? Question 7 options: A) Middle cerebellar peduncle B) inferior cerebellar peduncle C) Superior cerebellar peduncle D) Lateral cerebellar pedunclearrow_forwardWhat type of ganglion contains neurons that control homeostatic mechanisms of the body? a. sensory ganglion b. dorsal root ganglion c. autonomic ganglion d. cranial nerve ganglionarrow_forward1. How many segments does the abdominal ganglion of the dragonflies have?A. one to eight segmentsB. five to six segmentsC. four to seven segmentsD. seven segments 2. Which of the following pertains to the synaptic cleft?A. A region containing the neurons, cell bodies with associated glial cells.B. It is a double chain of ganglia joined by lateral and longitudinal connectives.C. It is a source of premotor outflow from the brain.D. It is a mass of neuropile. 3. Which of the following is a central region of intermingling, synapsing axonsencapsulated by processes of glial cells?A. neuriteB. neurogliaC. neural lamellaD. neuropilearrow_forward
- which 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_forwardParasympathetic 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 vesselsarrow_forward2(1) Answer these questions well detailed in paragraphs and explained please. A) What are the five sensory organs? B) What are the nerve centers? What is each person's role? C) What factors could disturb the nervous system?arrow_forward
- Ganglia are ... a) ... collections of nerve cell bodies outside the CNS b) ... part of a nerve cell c) ... the connection between two nerve cells d) ... collections of nerve fibers in the CNS e) ... a type of glial cells in the brainarrow_forwardWhen do neural discharges in the brain have their strongest effect? a. When the discharge rate of individual nerve cell is highest b. When individual nerve cells fire in regular way c. When the coherence of discharges in groups of nerve cells is greatest d. When many nerve cells have burst activityarrow_forward1. Neurotransmitters are chemical substances that carry information across the synaptic gap to the next neuron in form of ? 2. The cell body of peripheral sensory neurons is located within the: a.brain b.dorsal gray horn c.spinal cord d.dorsal root ganglionarrow_forward
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