Basic Biomechanics
7th Edition
ISBN: 9780073522760
Author: Susan J Hall
Publisher: McGraw-Hill Education
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Chapter 7, Problem 2AP
Which muscles are most likely to serve as agonists to produce the movements identified in your answer to Problem 1?
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We move a lot and do not even realize how intricate these movements may be from gross motor to fine motor manipulations. Briefly explain the steps involved in a single muscle contraction beginning at the neuromuscular junction through one complete contraction and relaxation for the sliding filament theory. Don’t forget to include all the major proteins (actin, myosin, troponin and tropomyosin) involved as well as calcium and ATP.
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Chapter 7 Solutions
Basic Biomechanics
Ch. 7 - Construct a chart listing all muscles crossing the...Ch. 7 - Prob. 2IPCh. 7 - Prob. 3IPCh. 7 - INTRODUCTORY PROBLEMS 4. List the muscles that...Ch. 7 - INTRODUCTORY PROBLEMS 5. List the muscles used as...Ch. 7 - INTRODUCTORY PROBLEMS 6. Explain how the use of an...Ch. 7 - INTRODUCTORY PROBLEMS 7. Select a familiar...Ch. 7 - 8. Using the diagram in Sample Problem 7.1 as a...Ch. 7 - 10. Solve Sample Problem 7.2 with the addition of...Ch. 7 - Identify the sequence of movements that occur at...
Ch. 7 - Which muscles are most likely to serve as agonists...Ch. 7 - Prob. 3APCh. 7 - ADDITIONAL PROBLEMS 4. Which muscles are most...Ch. 7 - Prob. 5APCh. 7 - Prob. 6APCh. 7 - 8. How much tension (Fm) must be supplied by the...Ch. 7 - 9. What is the length of the moment arm between...Ch. 7 - Prob. 10AP
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, bioengineering and related others by exploring similar questions and additional content below.Similar questions
- If your biceps brachii muscle attaches to your forearm 2 inches below your elbow, the distance from the elbow to the palm of your hand is 18 inches, and you lift a 20 pound weight, how much pull must your muscle exert to achieve elbow flexion? If your biceps brachii muscle attaches to your forearm 2 inches below your elbow, the distance from the elbow to the palm of your hand is 18 inches, and you lift a 20 pound weight, how much pull must your muscle exert to achieve elbow flexion? hhharrow_forwardResearchers are working to understand a rare disease that affects the ability of the muscles to contract. They have identified that the disease is caused by abnormal gene expression leading to a relatively large intracellular space between the T-tubules and the terminal cisternae in the triad, which causes an interruption in the connection between the dihydropyridine (DHP) receptor and the ryanodine calcium channel. Based on this description of the morphology underlying the disease, which of the following problems would you expect in excitation-contraction coupling? An action potential would not be able to be transmitted down the T-tubule. Re-uptake of calcium would be blocked, leading to an increase in intracellular calcium. O The actin binding sites may continue to be blocked by tropomyosin even following an action potential along the sarcolemma. O All of the above. Only B and C.arrow_forward23. The diagram below represents an experimental set-up to demonstrate an aspect during muscle construction. fixed support String Kymograph- Frog muscle Pivot (a) State what would happen if a solution of ATP was added to the muscle. (b) Explain why it is necessary to use muscle from a freshly killed animal. (c) Name the part of the mammal represented by: (1) pivot. (ii) string. (iii) fixed support. 4. The apparatus below were used to investigate a certain physiological process in plants.arrow_forward
- What are the mechanisms for muscle contraction vs. relaxation in regards to myosin/thick filaments/thin filament movement? Is it true that if tropomysin blocks myosin sites, contraction ends and muscle relaxes?arrow_forwardBriefly describe why contraction of the muscle cell is called “sliding filament theory” (what is sliding?) and what do we mean by “excitation-contraction coupling?” (What is being excited, and what is coupled?)arrow_forwardThe motor unit types (S, FR, and FF) that were initially identified in the cat medial gastrocnemius muscle were based on all of the following EXCEPT? a.) The mitochondrial density of the muscle fibers innervated by a single motor neuron b.) Contraction time c.) The amount of force a motor unit would produce d.) How quickly a motor unit would fatigue during a fatigue testarrow_forward
- How does speed of muscle action affect the following relationships; force-velocity and force-power?arrow_forwardSkeletal muscle cells undergo contractions based on a molecular mechanism involving: 1)the sliding of actin and myosin filaments past each other without any change in filament length 2) the shortening of actin filaments following direct interaction with myosin 3) dynamic instability of microtubules 4)nonearrow_forwardDescribe the three pathways by which muscles can produce theATP they need to contract.arrow_forward
- In most fish, the bulk of the trunk muscles are fast glycolytic, which are not used for steady cruising. Explain.arrow_forwardDescribe the roles of the following in muscle action:agonist, antagonist, synergist, fixator, and prime mover.arrow_forwardidentify the incorrect statement about skeletal muscle (A) the epimysium, perimysium, and endomysium form the tendon of the muscle (B) when putting down a weight (extending the elbow) the biceps brachii muscle is doing a concentric isotonic contraction (C) when doing a knee flexion, the hamstrings muscle group is the agonist (D) holding a plank is an example of an isometric contractionarrow_forward
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