Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Textbook Question
Chapter 38, Problem 6TYK
Lifting weights will most increase the size of:
skeletal muscle.
smooth muscle.
cardiac muscle.
involuntary muscle.
interlinked, branched muscle.
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Match the muscle type to its main characteristics
Smooth muscle
Cardiac muscle
Skeletal muscle
Previous
Responsible for involuntary movements; does not contain
sarcomeres (is unstriated).
Responsible for voluntary movements; contains sarcomeres
(is striated).
Responsible for involuntary movements; contains sarcomeres
(is striated).
TVAL
Characteristics of smooth muscles fibers
are:
spindle shaped, unbranched, unstriated,
uninucleate and involuntary
spindle shaped, unbranched, multistriated,
uninucleate and involuntary
cylinderical, unbranched, unstriated,
uninucleate and involuntary
Cylindrical, unbranched, striated,
multinucleate and involuntary
Fat cells are characterized by:
affected by starvation
present in adults
they are heat insulator
they have signet ring appearance
abundant mitochondria
Which of the following statements are true?
Multiple Choice
Muscles work in antagonistic pairs because if one muscle shortens during contraction, the opposing muscle across
the joint must relax.
Muscles work in antagonistic pairs because tendons lengthen during contraction.
Muscles work in antagonistic pairs because muscles lengthen during contraction.
Muscles work in antagonistic pairs because if one muscle pushes during contraction, the opposing muscle across
the joint must pull.
Chapter 38 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 38.1 - Prob. 1SBCh. 38.1 - Prob. 2SBCh. 38.2 - Prob. 1SBCh. 38.2 - What are the six major types of connective tissue...Ch. 38.2 - Prob. 3SBCh. 38.3 - Prob. 1SBCh. 38.4 - Prob. 1SBCh. 38 - Which tissue type consisting of sheetlike layers...Ch. 38 - Which of the following is a constant source of...Ch. 38 - A flexible, rubbery protein in connective tissue...
Ch. 38 - Prob. 4TYKCh. 38 - Prob. 5TYKCh. 38 - Lifting weights will most increase the size of:...Ch. 38 - Which muscle types appear striated under a...Ch. 38 - Prob. 8TYKCh. 38 - Prob. 9TYKCh. 38 - Prob. 10TYKCh. 38 - Prob. 11TYKCh. 38 - Prob. 12TYKCh. 38 - Discuss Concepts Near the time of childbirth,...Ch. 38 - Prob. 14TYKCh. 38 - 15. What effect do you think a program of lifting...Ch. 38 - The regulation of temperature in mammals and birds...Ch. 38 - Prob. 17TYKCh. 38 - Prob. 1ITD
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- Skeletal muscle contraction requires _________. a. calcium ions b. ATP c. arrival of a nerve impulse d. all of the abovearrow_forwardYou are training athletes for the 100-meter dash. They need muscles specialized for speed and strength, not endurance. What muscle characteristics would your training regimen aim to develop? How would you alter it to train a long-distance swimmer?arrow_forwardFigure 38.37 Which of the following statements about muscle contraction is true? The power stroke occurs when ATP is hydrolyzed to ADP and phosphate. The power stroke occurs when ADP and phosphate dissociate from the myosin head. The power stroke occurs when ADP and phosphate dissociate from the actin active site. The power stroke occurs when Ca2+ binds the calcium head.arrow_forward
- Skeletal muscle will be released in its contracted (rigor) state when: Group of answer choices ATP is hydrolyzed into forming ADP and inorganic phosphate. ATP binds to the myosin head. ADP is dissociated from the myosin head. ATP binds to the actin G-molecule.arrow_forwardthe muscle that is "mainly" responsible for a movement is called the? the muscle that acts in opposition of the movement is called the? what two terms describe a body temp either above or below normal? the muscular function of maintaining posture is possible due to what type of contraction?arrow_forwardWhich of the following muscle types and characteristic is correctly matched? Smooth muscle : Ca-calmodulin regulation of myosin light chain kinase Cardiac muscle : calcium only from the sarcoplasmic reticulum Cardiac muscle : dense body anchoring proteins Skeletal muscle : varicosity at neuromuscular junctionsarrow_forward
- Which of the following statements is true regarding muscle contraction? When a muuscle contracts, the sarcomere remains the same size. When a muscle contracts, the H-zone becomes narrower (shortens). When a muscle contracts, the lighter I-band becomes wider. When a muscle contracts, the A-band shortens.arrow_forwardSkeletal muscle cell(key terms: striated, contracting proteins, contractions, nucleus location) The function (or job) of a muscle cell is:arrow_forwardIndicate which of the following are true. Chronically shortened muscles will lose sarcomeres in series in order to maintain ideal amounts of myofilament overlap. Contractile force is proportional to the length of a muscle. Muscle organ contraction is all or nothing. Muscle cells are surrounded by an endomysium. Actin is the thick filament and Z-lines are where the cross-bridges zig-zag to adjacent actin filaments. Muscles with fewer motor units are weaker, i.e., capable of less force. A nerve impulse, calcium, and ATP are necessary for muscle contraction. Tendons attach bones to bones and help to limit the range of motion at joints. Muscle tissue is very dynamic and will respond to chronic stress by becoming stronger (making more myofilaments), chronic contraction by becoming shorter (losing sarcomeres in series), and stretching by becoming longer (adding sarcomeres in series). Myofilaments are actually long strands of proteins.arrow_forward
- Which of the following correctly states the importance of an action potential to muscle contration? The SR will only release Ca2+ if it has been electrically stimulated. Sarcomeres require a negative electrical charge to start sliding. Actin and myosin must be electrically charged to create a cross-bridge. ATP cannot be split into ADP and Pi without an action potential.arrow_forwardThere are 3 types of muscle... skelatal, smooth and cardiac. What type of contraction are they though? Concentric, isometric or eccentric? Don't copy from Googlearrow_forwardName the characteristics of muscles. Name the muscle functions. Name the types of muscles and mention to characteristics of each. Name the organization of muscle tissue from largest to the smallest. Name the major parts of a muscle fiber. Name the three layers of connective tissue membranes in muscles and mention to their locations. Define the structure of a sarcomere. Explain the sliding filament mechanism. Name the stages of sliding filaments in order. Briefly explain each. Explain the structure of NMJ and name the steps of muscle stimulation in order. Name the sources of muscle energy and briefly explain each. Define a motor unit. Name the stages of a muscle twitch in order. Define wave summation, unfused and fused tetanus. Name the types of muscle contraction and briefly explain each. Chapter 12 You should be able to: Classify the nervous system in to two major parts. Name the organs in CNS and PNS. Name the two major types of nerves and mention to their numbers. Mention to…arrow_forward
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