Anatomy and Physiology
9th Edition
ISBN: 9781260256000
Author: SALADIN
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 9, Problem 4TYC
Summary Introduction
Summary:
Suppose a person abducts the arm by holding a weight. The abduction happens because the deltoid muscle inserts into the deltoid tuberosity of the humerus (shoulder bone). A laboratory skeleton is chosen to identify the fulcrum, measure the effort and resistance arms, determine the mechanical advantage of abduction, and also to determine which type of lever the upper limb belongs when performing abduction.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Discuss the functions of the different types of levers found in our body. How do these different types of levers make our body more useful. Explain each type of lever, the position of the fulcrum, load, and applied force and give an example of each.
An isometric exercise is one in which the joint angle does not change during the application of muscle force. For instance, you can join your hands together, pushing down with one hand and pushing up with the other. In each arm, the muscles that provide the force are connected to the bones of the arm by tendons. If you increase the forces but keep the angles the same, the muscles will still contract. Explain how this is possible.
Consider the movements of plantar flexion and dorsiflexion. Propose a reason why there are far more (and stronger) muscles involved in plantar flexion?
Chapter 9 Solutions
Anatomy and Physiology
Ch. 9.1 - Prob. 1BYGOCh. 9.1 - Prob. 2BYGOCh. 9.1 - Prob. 3BYGOCh. 9.1 - Prob. 4BYGOCh. 9.1 - Prob. 5BYGOCh. 9.1 - Prob. 6BYGOCh. 9.1 - The fundamental definition of joint (articulation)...Ch. 9.1 - Relationships and differences between the sciences...Ch. 9.1 - Prob. 3AYLOCh. 9.1 - Prob. 4AYLO
Ch. 9.1 - Characteristics and examples of bony joints...Ch. 9.1 - Characteristics of fibrous joints (synarthroses)...Ch. 9.1 - Characteristics of cartilaginous joints...Ch. 9.2 - Prob. 7BYGOCh. 9.2 - Prob. 8BYGOCh. 9.2 - Prob. 9BYGOCh. 9.2 - Prob. 10BYGOCh. 9.2 - Prob. 11BYGOCh. 9.2 - The definition and anatomical features of a...Ch. 9.2 - General anatomy of tendons, ligaments, bursae, and...Ch. 9.2 - Three essential components of a leverCh. 9.2 - Prob. 4AYLOCh. 9.2 - Prob. 5AYLOCh. 9.2 - Variables that determine a joints range of motion...Ch. 9.2 - Prob. 7AYLOCh. 9.2 - Six kinds of synovial joints; how each is...Ch. 9.2 - The concept of zero position and how it relates to...Ch. 9.2 - Prob. 10AYLOCh. 9.2 - Prob. 11AYLOCh. 9.2 - The same for flexion, extension, hyperextension,...Ch. 9.2 - Prob. 13AYLOCh. 9.2 - Prob. 14AYLOCh. 9.3 - Prob. 12BYGOCh. 9.3 - Prob. 13BYGOCh. 9.3 - Prob. 14BYGOCh. 9.3 - Prob. 15BYGOCh. 9.3 - Prob. 16BYGOCh. 9.3 - Features of the jaw (temporomandibular) joint...Ch. 9.3 - Features of the shoulder (glenohumeral) joint...Ch. 9.3 - Prob. 3AYLOCh. 9.3 - Prob. 4AYLOCh. 9.3 - Prob. 5AYLOCh. 9.3 - Features of the ankle (talocrural) joint,...Ch. 9 - Prob. 1TYRCh. 9 - Which of the following is the least movable? a. a...Ch. 9 - Prob. 3TYRCh. 9 - Prob. 4TYRCh. 9 - Which of the following terms denotes a general...Ch. 9 - Prob. 6TYRCh. 9 - In a second-class lever, the effort a. is applied...Ch. 9 - Prob. 8TYRCh. 9 - Prob. 9TYRCh. 9 - The rotator cuff includes the tendons of all of...Ch. 9 - Prob. 11TYRCh. 9 - A fluid-filled sac that eases the movement of a...Ch. 9 - Prob. 13TYRCh. 9 - _____ is the science of movement.Ch. 9 - Prob. 15TYRCh. 9 - Prob. 16TYRCh. 9 - Prob. 17TYRCh. 9 - Prob. 18TYRCh. 9 - Prob. 19TYRCh. 9 - Prob. 20TYRCh. 9 - Prob. 1BYMVCh. 9 - Prob. 2BYMVCh. 9 - Prob. 3BYMVCh. 9 - Prob. 4BYMVCh. 9 - Prob. 5BYMVCh. 9 - Prob. 6BYMVCh. 9 - Prob. 7BYMVCh. 9 - Prob. 8BYMVCh. 9 - Prob. 9BYMVCh. 9 - Prob. 10BYMVCh. 9 - Prob. 1WWTSCh. 9 - A doctor who treats arthritis is called a...Ch. 9 - Prob. 3WWTSCh. 9 - Prob. 4WWTSCh. 9 - Prob. 5WWTSCh. 9 - Prob. 6WWTSCh. 9 - Prob. 7WWTSCh. 9 - Prob. 8WWTSCh. 9 - Synovial fluid is secreted by the bursae.Ch. 9 - Prob. 10WWTSCh. 9 - All second-class levers produce a mechanical...Ch. 9 - For each of the following joint movements, state...Ch. 9 - In order of occurrence, list the joint actions...Ch. 9 - Prob. 4TYCCh. 9 - Prob. 5TYC
Knowledge Booster
Learn more about
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
- Anatomical levers can improve physical perfor-mance. Explain how this occurs using the infor-mation you have learned in relation to throwing.arrow_forwardThe flexors of the leg include all of the following except the: Question 29 options: biceps femoris rectus femoris semimenbranosus semitendinosus saritorius Question 30 The muscle fiber arrangement of the rectus femoris is: Question 30 options: bipennate and has greater potential for force bipennate and creates tension through a greater range fusiform and creates tension through a greater range fusiform and has greater potential for force.arrow_forwardclassify any given joint action as a first-, second-, or thirdclass lever;arrow_forward
- To do Left hip extension in the Sagittal plane, the (name the muscle) would have to lie (A –rWhere?) 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_forwarddescribe scapulohumeral movement, or synergy, that takes place with the shoulder joint and girdle. What muscles are acting to create these motions? What could happen if this synergy did not occur?arrow_forwardConsider the importance of forearm position (pronation/supination) on the influence of the muscle providing force during flexion of the elbow. 1. Please outline which radioulnar/forearm position would be best to isolate each of the three main elbow flexors AND 2. provide a brief explanation of why hand position makes a difference.arrow_forward
- Based on its fascicle orientation, determine whether each of the following muscles is built for large range of movement or for power: sartorius; rectus femoris; latissimus dorsi; subscapularis; gluteus maximus.arrow_forwardDuring a Physical Education class, you ask your students to perform a standing vertical jump. Identify the type of muscle contraction involved in the jump and describe the movement patterns of the concentric and eccentric phases. Outline the agonists, antagonists and synergist muscles, which contribute to maximum jump height. Identify the major lower body joints and joint movements, which contribute to the concentric phase of the jump.arrow_forwardAssume you are trying to lift a heavy weight off the ground with your right hand. Explain why it will be easier to flex your forearm at the elbow when your forearm is supinated than when it is pronated.arrow_forward
- Match each of the following to the type of movement that would occur: a: Flexion b: Extension c: Abduction d: Adduction e: Circumduction f: Pronation g: Supination _____Position of the forearm when serving supper _____Bending of the body forward as is done in a sit-up _____Movement of the knees as you return to standing after doing a squat _____Action of the hip as the ballerina places her foot onto the practice bar _____Straightening of the body after touching your toesarrow_forwardBriefly explain why it is easier to swing the leg through in the swing phase of sprinting with the knee flexed as opposed to extended.arrow_forwardThree 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_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
GCSE PE - ANTAGONISTIC MUSCLE ACTION - Anatomy and Physiology (Skeletal and Muscular System - 1.5); Author: igpe_complete;https://www.youtube.com/watch?v=6hm_9jQRoO4;License: Standard Youtube License