Laboratory Manual For Human Anatomy & Physiology
4th Edition
ISBN: 9781260159363
Author: Martin, Terry R., Prentice-craver, Cynthia
Publisher: McGraw-Hill Publishing Co.
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Textbook Question
Chapter 20, Problem 8PL
The plasma membrane of a muscle fiber (cell) is called the sarcolemma
a. True ________
b. False ______
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Chapter 20 Solutions
Laboratory Manual For Human Anatomy & Physiology
Ch. 20 - The outermost layer of connective tissue of a...Ch. 20 - The thick myofibril filament of a sarcomere is...Ch. 20 - The muscle primarily responsible for an action is...Ch. 20 - The neuron and the muscle fibers it innervates is...Ch. 20 - The functional contractile unit of a muscle fiber...Ch. 20 - Prob. 6PLCh. 20 - A synergistic muscle contraction assists the...Ch. 20 - The plasma membrane of a muscle fiber (cell) is...Ch. 20 - Match the terms in column A with the definitions...Ch. 20 - FIGURE 20.7 Label this transmission electron...
Ch. 20 - When stimulated to contract, the sarcomeres...Ch. 20 - Prob. 3.1ACh. 20 - The ____________ of a muscle is attached to a more...Ch. 20 - A muscle responsible for most of an action is...Ch. 20 - Assisting muscles of an agonist are called...Ch. 20 - Antagonists are muscles that resist the actions...Ch. 20 - When the forearm is extended at the elbow joint,...Ch. 20 - When the biceps brachii acts as the agonist, the...Ch. 20 - A _____________ is a synergistic muscle that will...
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- Muscle contraction and cytokinesis both require motor proteins and microtubules. Select one: a. False b. True Clear my choicearrow_forwardIn general, fast-twitch fibers generate less power than slow-twitch fibers. A. True B. Falsearrow_forwardFor each contraction below indicate whether it is an example of a muscle twitch, unfused tetanus, or fused tetanus. ______________________ 4. muscle spasm ______________________ 5. facial muscle tic ______________________ 6. cardiac fibrillation ______________________ 7. muscle crampsarrow_forward
- When the length of the muscle stays the same but the force increases during contraction it is referred to as an: A. Isotonic Contraction B. Isometric Contraction C. Isotreppid Contraction D. Isochronal Contractionarrow_forwardFast oxidative glycolytic fibers in skeletal muscle are used Select one: O a. intermittently, for activities requiring more force output than the fast glycolytic fibers alone can produce. O b. constantly, for postural activities such as standing and sitting. O c. intermittently, for activities requiring more force output than the slow oxidative fibers alone can produce. O d. only for motions requiring maximum power output, such as jumping.arrow_forwardIdentify which muscle fiber types would be recruited for each of the following functions. Explain your answer. a. walking b. standing c. lifting a heavy object and immediately putting it downarrow_forward
- e. M line: Photo courtesy of LUMEN (Loyola University Medical Education Network) 5. On the photograph above, label the A band, I band, z disc, and a sarcomere. I 6. The sliding filament theory is used to explain the physiology of skeletal muscle contraction. On your own, using what you have learned from this activity, write your own description of what the sliding filament theory states.arrow_forwardFast-twitch muscle fibers are also called type ________fibers and slow-twitch are called type _____________fibers. A, B I, II II, I B, Aarrow_forwardComplete the following table on muscle characteristics. You may type your answers in a list below numbered by the corresponding box in the table. Cardiac (contractile) Skeletal How many nuclei per cell? 1 2 Is the tissue striated? 4 Describe the shape of the cell. 5 6 Is this muscle regulated by somatic motor neurons? 7 8 Average duration of action potential 10arrow_forward
- The power stroke of muscle contraction occurs as the myosin head pivots toward its tail and the thin filament slides along the length of the thick filament. A. true B. falsearrow_forwardWhich of the following would most likely cause hypertrophy of skeletal muscle in the arms Select one: a. using a computer for most of your job b. muscle cramps due to poor hydration c. immobilization due to wearing a cast d. working out by lifting weights O O O Oarrow_forwardWhen a muscle is performing a primary action and inserts close to the joint where the movement is taking place, that muscle is known as a(an) ______________ muscle. A and B C and D B and C A and D C - shunt D - agonist B - antagonist A - spurtarrow_forward
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