Fundamentals of Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134396026
Author: Frederic H. Martini, Judi L. Nath, Edwin F. Bartholomew
Publisher: PEARSON
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Chapter 11, Problem 20RQ
Summary Introduction
Introduction:
The levers are classified on the basis of the relative position of three elements: applied force (AF), fulcrum (F), and load (L). In second-class lever, the load lies between the applied force and the fulcrum. The position is described as F-L-AF.
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Differentiate between the arrangement of elements (load, fulcrum, and effort) in first-, second-, and third-class levers.
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What benefit is provided by a lever that operates at a mechanical advantage?
Chapter 11 Solutions
Fundamentals of Anatomy & Physiology (11th Edition)
Ch. 11 - Based on patterns of fascicle arrangement, name...Ch. 11 - Why does a pennate muscle generate more tension...Ch. 11 - Prob. 3CPCh. 11 - Define a lever, and describe the three classes of...Ch. 11 - The joint between the occipital bone of the skull...Ch. 11 - Prob. 6CPCh. 11 - Muscle A abducts the humerus, and muscle B adducts...Ch. 11 - Prob. 8CPCh. 11 - Prob. 9CPCh. 11 - Prob. 10CP
Ch. 11 - Describe the location and general functions of...Ch. 11 - Describe the location and general functions of...Ch. 11 - Prob. 13CPCh. 11 - Prob. 14CPCh. 11 - Prob. 15CPCh. 11 - Damage to the external intercostal muscles would...Ch. 11 - If someone hit you in your rectus abdominis, how...Ch. 11 - Prob. 18CPCh. 11 - Prob. 19CPCh. 11 - Prob. 20CPCh. 11 - Prob. 21CPCh. 11 - Prob. 22CPCh. 11 - Prob. 23CPCh. 11 - How would a torn calcaneal tendon affect movement...Ch. 11 - What major function does the muscular system...Ch. 11 - Identify the physiological effects of exercise on...Ch. 11 - Prob. 1RQCh. 11 - Prob. 2RQCh. 11 - Prob. 3RQCh. 11 - Prob. 4RQCh. 11 - Prob. 5RQCh. 11 - Prob. 6RQCh. 11 - The strongest masticatory muscle is the (a)...Ch. 11 - Prob. 8RQCh. 11 - Prob. 9RQCh. 11 - The major extensor of the elbow is the (a) triceps...Ch. 11 - Prob. 11RQCh. 11 - Prob. 12RQCh. 11 - Prob. 13RQCh. 11 - Prob. 14RQCh. 11 - What is an aponeurosis? Give two examples.Ch. 11 - Prob. 16RQCh. 11 - Prob. 17RQCh. 11 - On which bones do the four rotator cuff muscles...Ch. 11 - Prob. 19RQCh. 11 - Prob. 20RQCh. 11 - Compartment syndrome can result from all of the...Ch. 11 - Prob. 22RQCh. 11 - Prob. 23RQCh. 11 - Prob. 24RQCh. 11 - Prob. 25RQCh. 11 - Prob. 26RQCh. 11 - Prob. 27RQCh. 11 - Prob. 28RQCh. 11 - Prob. 29RQCh. 11 - Prob. 30RQCh. 11 - Prob. 31RQCh. 11 - Prob. 1CCCh. 11 - Prob. 2CC
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology 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_forwardSelect the best answer or answers from the choices given: 1. A muscle that assists an agonist by causing a like movement or by stabilizing a joint over which an agonist acts is a(n) (a) antagonist, (b) prime mover, (c) synergist, (d) agonist.arrow_forwardYou are trying to jump from a crouched position (knee fully flexed), 1) list all of the muscles at the knee and hip that would move you from this position to in the air. 2) using the principle of active insufficiency please also outline the timing of the muscle force for the knee and the hip (i.e. what muscles provide the most force early in the movement, when the knee and hip are both more flexed, and what muscles provide the most force later in the movement, when the hip and knee are both more extended)arrow_forward
- Compare and contrast first-, second-, and third-class leversarrow_forwardWhat are two factors which allow the gastrocnemius and soleus muscles to generate greater plantar flexion torque than all the other muscles capable of plantarflexion?arrow_forwardWhat is an example of multiple lever types in the body during the same movement?arrow_forward
- Why can you lift a larger load when your elbow is slightly flexed and your biceps muscle is at an intermediate length than you can when your elbow is fully extended?arrow_forwardWhich of the three lever systems involved in muscle mechanics would be the fastest lever—first-, second-, or third-class?arrow_forwardDefine a lever.arrow_forward
- Three orders of levers are recognized: I. Fulcrum (pivot) between power and weight. II. Weight between power and fulcrum. III. Power between fulcrum and weight. What order of lever is involved in the action of the gastrocnemius muscle of the frog? Of man? Of the triceps in the fore limb? Of the biceps in the fore limb?arrow_forwardPut the following muscles in order from lateral to medial. (a) tensor fascia late (b) pectinius (c) rectus femoris (d) iliopsoas (e) adductor longus (f) gracilisarrow_forwardTo do Right ankle plantar flexion in the Sagittal plane, the (name the muscle) would have to lie (A – Where?) relative to the joint, and since it can only (PULL), the fibers would have to run (PERPENDICULAR ) to the (D ) axis to achieve the desired movement. choose from: A. Pick from: Anterior, Posterior, Medial, Lateral, Superior, Inferior B. Write in the word “PULL” C. Write “perpendicular” D. Pick from :Anterior - posterior, Superior-inferior or Medio - Lateralarrow_forward
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