Human Anatomy & Physiology (2nd Edition)
2nd Edition
ISBN: 9780134553511
Author: Erin C. Amerman
Publisher: PEARSON
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Textbook Question
Chapter 14, Problem 3CYU
Describe all the changes initiated by the parasympathetic nervous system that will take place when you finish the race. How will these changes maintain homeostasis?
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Students have asked these similar questions
Which of the following rows describes the change in heart rate, blood flow to skin, and glucose storage that would be expected to occur immediately following stimulation of the parasympathetic nervous system?
Select one:
a.
Heart Rate
Blood Flow to Skin
Glucose Storage
Increased
Increased
Decreased
b.
Heart Rate
Blood Flow to Skin
Glucose Storage
Decreased
Decreased
Increased
c.
Heart Rate
Blood Flow to Skin
Glucose Storage
Decreased
Decreased
Decreased
d.
Heart Rate
Blood Flow to Skin
Glucose Storage
Increased
Increased
Increased
Most immediate physiological adjustments to exercise occur prior to any change in tissue metabolic demand for oxygen or nutrients. This occurs because exercise increases sympathetic nervous system activity. With your knowledge of exercise and the control of alpha motor neurons by the primary motor cortex of the brain, how does increased exercise influence the sympathetic nervous system?
During rhythmic, moderately intense aerobic exercise, there is a redistribution of blood flow
throughout the body. Which of the following statements is true?
O beta-2 receptors cause dilation and increased blood flow to the exercising muscle
there is a large increase in blood flow to the brain to keep you alert
mean arterial pressure increases 5-8x due to a similar increase in total cardiac output
blood flow to the kidneys and gut increases due to the presence of alpha-2 receptors
Chapter 14 Solutions
Human Anatomy & Physiology (2nd Edition)
Ch. 14.1 - What are the basic functions of the ANS?Ch. 14.1 - 2. What are autonomic ganglia?
Ch. 14.1 - How do somatic motor neurons and autonomic neurons...Ch. 14.1 - 4. What are preganglionic and postganglionic...Ch. 14.1 - What are the two divisions of the ANS?Ch. 14.1 - How are the two divisions of the ANS alike, and...Ch. 14.2 - 1. Where are the cell bodies of sympathetic...Ch. 14.2 - Where are the cell bodies of sympathetic...Ch. 14.2 - Which neurotransmitter(s) is (are) released by...Ch. 14.2 - Prob. 4QC
Ch. 14.2 - Describe the effects of the sympathetic nervous...Ch. 14.2 - Prob. 6QCCh. 14.3 - What is the basic function of the parasympathetic...Ch. 14.3 - Where are the preganglionic parasympathetic cell...Ch. 14.3 - How does the arrangement of neurons in the...Ch. 14.3 - 4. Which neurotransmitter is released by all...Ch. 14.3 - Prob. 5QCCh. 14.3 - Prob. 6QCCh. 14.3 - Summarize the effects of the parasympathetic...Ch. 14.4 - Prob. 1QCCh. 14.4 - Prob. 2QCCh. 14.4 - 3. What is autonomic tone?
Ch. 14.4 - How does the CNS mediate control over the ANS?Ch. 14 - Which of the following best describes the basic...Ch. 14 - 2. Fill in the blanks: The sympathetic nervous...Ch. 14 - 3. Sympathetic preganglionic neurons synapse:
a....Ch. 14 - Differentiate between adrenergic and cholinergic...Ch. 14 - Prob. 5CYRCh. 14 - Explain what happens when sympathetic neurons...Ch. 14 - Prob. 7CYRCh. 14 - Mark each of the following as an effect of the...Ch. 14 - Mark the following statements as true or false. If...Ch. 14 - 10. Fill in the blanks: _______receptors are...Ch. 14 - Parasympathetic ganglia are typically: a. located...Ch. 14 - Central nervous system control over the ANS is...Ch. 14 - 1. Using 20 or fewer words, define each of the...Ch. 14 - You are running a race to the top of a mountain....Ch. 14 - 3. Describe all the changes initiated by the...Ch. 14 - 1. Which cranial nerves would be affected by a...Ch. 14 - 2. A patient, Dr. Young, has both asthma and high...Ch. 14 - Mr. Chevalier has been diagnosed with Horner...Ch. 14 - Many chemical warfare agents, such as the...
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- Which of the following statements is false? a. The sympathetic nervous system releases epinephrine and norepinephrine, which are positive chronotropic and inotropic agents. b. The endocrine system regulates cardiac output through chronotropic and inotropic hormones and through hormones that regulate water balance .c. The parasympathetic nervous system releases acetylcholine,which is a strongly negative inotropic agent. d. Factors such as electrolyte concentrations, body temperature,and age all affect cardiac output.arrow_forwardThe walls of blood vessels in the brain are formed by cells that are very tightly packed. This arrangement of cells provides which of the following properties of most brain vasculature? a. efficient removal of waste products by blood systems b. rigidity and likelihood of stroke c. most large and charged molecules cannot move from the blood to the brain d. easy access to required blood chemicals such as glucose, oxygen, and various hormones What does it mean to say that acetylcholine exerts ionotropic effects? a. It opens ion channels. b. It increases the concentration of ions within the vesicles. c. It alters the permeability of the presynaptic neuron. d. It changes the electrical charge of sodium ions from positive to negative.arrow_forwardWhich of the following statements about action potentials and information transmission in the synaptic cleft is FALSE? 1. Action potentials determine the amount of neurotransmitters that are released into the synaptic cleft 2.Action potentials ultimately result in more calcium leaving the target cell at the postsynaptic membrane 3. Action potentials determine the duration that neurotransmitters are released into the synaptic cleft 4. Action potentials ultimately result in more calcium entering the neuron at the axon terminalarrow_forward
- The patient's muscle weakness, dizziness, and nausea are all due to hypokalemia. How does hypokalemia lead to muscle weakness? O hypokalemia leads to hypopolarization which results in fewer action potentials arriving at skeletal muscles O hypokalemia leads to hyperpolarization which results in fewer action potentials arriving at skeletal muscles O hypokalemia leads to hypopolarization which leads to too many action potentials arriving at skeletal muscles O hypokalemia leads to hyperpolarization which results in too many action potentials arriving at skeletal musclesarrow_forwardCompare and contrast a physical versus a chemical synapse. Where are these synapses found in the body and how do they work in their respective tissues? What are benefits of each in those tissues? Compare and contrast the role of calcium in cardiac versus skeletal muscle.arrow_forwardAfter sprinting 100 meters 1) Identify the specific disturbance(s). What is being moved away from set point or resting values? 2) How is (are) the changes detected? What are the physiological sensors? 3) How will body regulate the changes to return to normal? 4) Are there specific interactions between the 2 systems that help detection or help regulate the changes back to rest?arrow_forward
- Put the following events in chronological order. (Some of the steps may be missing.)1) Ca*+ floods into the pre-synaptic neuron.2) ch (Acetylcholine) binds to ACh receptors in the sarcolemma.3) Na+ floods into the post-synaptic muscle cell.4) The A.P arrives at the pre-synaptic terminal causing Ca+ channels to open.5) Ach from the synaptic vesicles spills into the pre-synaptic cleft.6) A post-synaptic action potential results in the muscle fiber (depolarizationarrow_forwardA person who lives close to sea level and usually goes jogging in the morning. When that person runs at a place like Denver with high elevation she notices she isn't able to run as fast up in Denver as she usually does at home. She knows it is colder and there is less oxygen at high elevation than there is at his home. Why she feel like she didn't have the energy to keep up with her usual pace. a. her body wasnt able to begin glycolysis due to lack of oxygen b. her body was producing less ATP due to lack of oxygen c. her body wasnt getting enough external heat inputarrow_forwardLong-term aerobic training has been shown to alter the balance of sympathetic and parasympathetic activity. These changes include increased stroke volume and reduced resting heart rate. Explain how the enhanced parasympathetic activity would result in these adaptations.arrow_forward
- Which one of the following statements about gap junctions or electrical synapses is incorrect? A. Abundant gap junctions between cardiac muscle cells allow coordinated waves of contraction to spread through the heart muscle. B. Synaptic delays at electrical synapses are shorter than synaptic delays at chemical synapses. C. Gap junctions at electrical synapses are formed from proteins made in both the presynaptic and postsynaptic cells. D. Electrical synapses can be either excitatory or inhibitory. E. Electrical synapses are inherently bidirectional, i.e., current can spread between two coupled cells in either direction Please give me the correct answer quickly I will give you upvotearrow_forwardthe following structure will carry efferent impulses from central nervous system to skeletal muscles to make them contract: select one: a b c d e f g harrow_forwardWhy are neural or hormonal inputs needed for slow waves to be conducted?arrow_forward
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