HUMAN PHYSIOLOGY: AN INTEG ACCESS C
8th Edition
ISBN: 9780134714837
Author: Silverthorn
Publisher: PEARSON
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Textbook Question
Chapter 12, Problem 29RQ
Compare and contrast:
- a. fast-twitch oxidative-glycolytic, fast-twitch glycolytic, and slow-twitch muscle fibers
- b. a twitch and tetanus
- c. action potentials in motor neurons and action potentials in skeletal muscles
- d. temporal summation in motor neurons and summation in skeletal muscles
- e. isotonic contraction and isometric contraction
- f. slow-wave and pacemaker potentials
- g. the source and role of Ca2+ in skeletal and smooth muscle contraction
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Check out a sample textbook solutionStudents have asked these similar questions
All the following are important for smooth muscle contraction EXCEPT?
Select one:
a. Actin
b. Myosin
c. Myosin light chain kinase
d. Troponin and Tropomyosin
e. Calcium ions
Which of the following is an example of passive transport?
Select one:
a. Calcium efflux by calcium pump
b. Na-Ca exchanger
c. Potassium efflux through potassium leak channels
d. Calcium sequestration in sarcoplasmic reticulum
e. Na+/K+/ATPase
What role (function) does calcium have within a muscle fiber?
a. trigger muscle potentials along t-tubules
b. trigger contraction by causing the formation of cross bridges
c. trigger exocytosis of ACh across the synaptic space
d. trigger action potentials along axons
e. open voltage gates within the sarcoplasmic reticulum
2. Which of the following are regulatory proteins that allow a muscle fiber to contract when calcium is present? (select all that apply)
dystrophin
troponin
myosin
tropomyosin
actin
3.
During this phase of an action potential, potassium ions exit the cell through voltage gated potassium channels.
a. depolarization
b. repolarization
c. glycolysis
d. cross bridge formation
Which of the following statements relating to the factors affecting the force of muscle contraction is false?
a. skeletal muscles contract strongest when the muscle fibers are 80-120% their resting length
b. low frequency of stimulation generates decreased force
c. larger muscle fibers can generate more tension to generate stronger contractions
d. more motor units recruited causes stronger contractions
e. none of the above
Chapter 12 Solutions
HUMAN PHYSIOLOGY: AN INTEG ACCESS C
Ch. 12.1 - Identify as many pairs of antagonistic muscle...Ch. 12.1 - Prob. 2CCCh. 12.1 - Prob. 3CCCh. 12.1 - Prob. 4CCCh. 12.1 - What are the three anatomical elements of a...Ch. 12.1 - What is the chemical signal at a neuromuscular...Ch. 12.1 - Prob. 7CCCh. 12.1 - Prob. 8CCCh. 12.1 - Prob. 9CCCh. 12.1 - Name an elastic fiber in the sarcomere that aids...
Ch. 12.1 - Prob. 11CCCh. 12.1 - Prob. 12CCCh. 12.1 - Prob. 13CCCh. 12.1 - According to the convention for naming enzymes,...Ch. 12.1 - Prob. 15CCCh. 12.1 - Prob. 16CCCh. 12.1 - Summation in muscle fibers means that the...Ch. 12.1 - Prob. 18CCCh. 12.1 - Which type of runner would you expect to have more...Ch. 12.1 - What is the response of a muscle fiber to an...Ch. 12.1 - Prob. 21CCCh. 12.2 - One study found that many world-class athletes...Ch. 12.3 - What is the response of a muscle fiber to an...Ch. 12.3 - Prob. 24CCCh. 12.3 - Prob. 25CCCh. 12.3 - Prob. 26CCCh. 12.3 - Prob. 27CCCh. 12.3 - Prob. 28CCCh. 12.3 - What happens to contraction if a smooth muscle is...Ch. 12.3 - Prob. 30CCCh. 12.3 - Prob. 31CCCh. 12.3 - Prob. 32CCCh. 12.3 - How can a neuron alter the amount of...Ch. 12.3 - Prob. 34CCCh. 12.3 - Prob. 35CCCh. 12 - The three types of muscle tissue found in the...Ch. 12 - Which two muscle types are striated?Ch. 12 - Which type of muscle tissue is controlled only by...Ch. 12 - Arrange the following skeletal muscle components...Ch. 12 - The modified endoplasmic reticulum of skeletal...Ch. 12 - Prob. 6RQCh. 12 - Prob. 7RQCh. 12 - List six proteins that make up the myofibrils....Ch. 12 - List the letters used to label the elements of a...Ch. 12 - Briefly explain the functions of titin and...Ch. 12 - During contraction, the __________ band remains a...Ch. 12 - Explain the sliding filament theory of...Ch. 12 - Explain the roles of troponin, tropomyosin, and...Ch. 12 - Which neurotransmitter is released by somatic...Ch. 12 - What is the motor end plate, and what kinds of...Ch. 12 - Prob. 16RQCh. 12 - Prob. 17RQCh. 12 - Prob. 18RQCh. 12 - The basic unit of contraction in an intact...Ch. 12 - The two functional types of smooth muscle are...Ch. 12 - Prob. 21RQCh. 12 - Prob. 22RQCh. 12 - Prob. 23RQCh. 12 - Define muscle fatigue. Summarize factors that...Ch. 12 - Prob. 25RQCh. 12 - Prob. 26RQCh. 12 - Prob. 27RQCh. 12 - What is the role of the sarcoplasmic reticulum in...Ch. 12 - Compare and contrast: a. fast-twitch...Ch. 12 - Prob. 30RQCh. 12 - One way that scientists study muscles is to put...Ch. 12 - Prob. 32RQCh. 12 - On the basis of what you have learned about muscle...Ch. 12 - Prob. 34RQCh. 12 - Prob. 35RQ
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