HUMAN PHYSICOLOGY
15th Edition
ISBN: 9781260722000
Author: Fox
Publisher: MCG
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Textbook Question
Chapter 9, Problem 2CP
Compare the control of cardiac muscle and smooth muscles with that of skeletal muscles. How is each type of muscle tissue affected by cutting its innervation?
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How does the neuron activate the muscle fiber?
Use key terms below and identify them on a diagram.
Brain, motor neuron, action potential (AP), neuromuscular junction (NMJ), muscle fiber
Why is it important that skeletal muscle tissues work voluntarily and smooth and cardiac muscle tissues are involuntary?
Which of the following statements is unique to skeletal muscle?
O a) skeletal muscle has striations
O b) skeletal muscle is attached to bones
O c) skeletal muscle is under voluntary control
O d) skeletal muscle is multinucleated
O all of the above
O b, c, & d but not a
Chapter 9 Solutions
HUMAN PHYSICOLOGY
Ch. 9 - Describe the preganglionic and postganglionic...Ch. 9 - Compare the control of cardiac muscle and smooth...Ch. 9 - Describe the sympathetic pathway from the CNS to...Ch. 9 - Prob. 4CPCh. 9 - Prob. 5CPCh. 9 - Prob. 6CPCh. 9 - Prob. 7CPCh. 9 - Prob. 8CPCh. 9 - Explain how the effects of the sympathetic and...Ch. 9 - Prob. 1RA
Ch. 9 - Prob. 2RACh. 9 - Prob. 3RACh. 9 - Prob. 4RACh. 9 - Which of these fibers release norepinephrine? a....Ch. 9 - Prob. 6RACh. 9 - Prob. 7RACh. 9 - Prob. 8RACh. 9 - Prob. 9RACh. 9 - Prob. 10RACh. 9 - Prob. 11RACh. 9 - A drug that serves as an agonist for ai receptors...Ch. 9 - Prob. 13RACh. 9 - Prob. 14RACh. 9 - Compare the effects of adrenergic and cholinergic...Ch. 9 - Prob. 16RACh. 9 - Prob. 17RACh. 9 - Prob. 18RACh. 9 - Prob. 19RACh. 9 - Prob. 20RACh. 9 - Prob. 21RACh. 9 - Prob. 22RACh. 9 - Prob. 23RACh. 9 - Prob. 24RACh. 9 - Prob. 25RACh. 9 - Prob. 26RACh. 9 - Prob. 27RACh. 9 - Prob. 28RACh. 9 - Prob. 29RACh. 9 - Prob. 30RACh. 9 - Refer to table 7.3 to obtain axon diameters and...
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- Differentiation Table: Visceral Muscle Cardiac Muscle Skeletal Muscle Voluntary or Involuntary Striated or Non-striated Location Controller Which of the three types of muscle appears to have the most parallel fibers? Which of the three types of muscle has the most irregular fibers? Which of the muscle types appears to have the largest nuclei? Which of the types of muscle appears to consists of fibers that connect side to side like the off ramp of an interstate highways?arrow_forwardLower back pain is quite common in America and treatments for this pain include muscle relaxants. How does the drug cyclobenzaprine work as a muscle relaxant at a cellular level? Which part of the muscle contraction is interrupted by cyclobenzaprine? Is it effective on the muscle itself or active in the central nervous system?arrow_forwardVoluntary control of muscle contractions is restricted to which type of muscle tissue?arrow_forward
- Explain how cardiac muscle differs from skeletal muscle in its structure and regulation of contraction.arrow_forwardWhy would cardiac muscle cells and some smooth muscle cells.continue to contract even when their nerve supply has been removed or severed?arrow_forwardHow would exposure to a sarin or sarin-like chemical affect calcium levels inside the sarcoplasmic reticulum (SR) of a skeletal muscle? Group of answer choices An increased frequency of action potentials would lead to decreased calcium levels in the SR A decreased frequency of action potentials would lead to decreased calcium levels in the SR An increased frequency of action potentials would lead to increased calcium levels in the SR A decreased frequency of action potentials would lead to increased calcium levels in the SR pick one answerarrow_forward
- Discuss the three types of muscle tissues: skeletal, cardiac, and smooth. Discuss the differences between each tissue type.arrow_forwardHow can a number of smooth muscle cells be influenced by neurotransmitters from a single neuron?arrow_forwardDistinguish between skeletal, smooth, and cardiac muscle in terms of location and whether they have sarcomeres. Use the sliding filament model to draw how thin filaments, thick filaments, and Z lines move during muscle contraction. Predict how perturbations of acetylcholine release, reception, or breakdown will influence muscle contraction. Predict how perturbations of actin, troponin, tropomyosin, myosin, or calcium would influence muscle contraction. Distinguish between the sympathetic and parasympathetic nervous system. Predict how changes in stress levels or situations would affect activation of the sympathetic and parasympathetic nervous system, levels of epinephrine and norepinephrine, and blood pressure.arrow_forward
- Describe how connective tissue associates with skeletal muscle.arrow_forwardOrder the following from smallest to the largest unit of organization in muscle tissue.arrow_forwardDetermine whether the following description is common to skeletal muscle, cardiac muscle or both skeletal and cardiac muscle. increase in tension during contraction of the muscle organ involves recruitment of other cells is primarily under the control of the autonomic nervous system all cells depolarize and contract during every contraction of the muscle organ different neurotransmitters can increase or decrease the rate of contraction action potentials begin electrical depolarization by a voltage-gated Na+ channel 1. skeletal muscle 2. cardiac muscle increase in cytosolic 3. skeletal muscle and cardiac muscle calcium increases tension in muscle cells prolonged depolarization is due to Ca2+ influx across the plasma membrane contraction is not under the control of hormones relaxation occurs when cytosolic calcium is reduced to resting levels increase in tension during contraction of single cells is associated with a higher frequency of action potentialsarrow_forward
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