BASIC BIOMECHANICS
8th Edition
ISBN: 9781259913877
Author: Hall
Publisher: RENT MCG
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Chapter 7, Problem 4AP
ADDITIONAL PROBLEMS
4. Which muscles are most likely to serve as agonists to produce the movements identified in your answer to Problem 3?
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I. INSTRUCTION: Compute for the following given problem.
1. Emily can lift 21 kg (210 newtons force) using muscles that have a cross-sectional
area of 6 cm2. Use this formula to work out how many newtons per square
centimetre her muscles can pull with:
Formula: Force/Area
TRUE OR FALSE
1. The longer the time tension is exerted, the greater the muscular endurance. *
2. The greatest amount of torque is produced by maximum tension in a muscle that is oriented at a 90° angle to the bone, and anatomically attached as far from the joint center as possible. *
3.The greater the torque a muscle can produce, the greater the movement it will produce on the body’s levers. *
4. When the fibers of a pennate muscle shorten, they rotate about their tendon attachment or attachments, progressively decreasing the angle of pennation. *
5.The fast-twitch fibers have smaller diameter than the slow-twitch fibers. *
6.At maximum velocity, no cross-bridges can form, so no force is generated, resulting in the production of zero power. *
7.The smaller number of cross-bridges results in a larger amount of force. *…
Question 10. Why does the sarcomere length
appear to shorten (from Z line to Z line) when
a muscle contracts?
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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- Assignment 11, Identify the longest muscles'in the body and outline the two major joints it crosses 2. In terms of ions and charges, with a well label diagram describe: • a, Polarization •b. Depolarization • C. Repolarizationarrow_forwardProblem 52 Correctly label the following movements.arrow_forwardGIVE 3 EXERCISES THAT CAN BE CONSIDERED AS A LOCOMOTOR MOVEMENT WITH ABDUCTION AND ADDUCTION MOVEMENT. WHY?arrow_forward
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