EBK BASIC BIOMECHANICS
7th Edition
ISBN: 9780100409453
Author: Hall
Publisher: YUZU
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Chapter 7, Problem 9AP
9. What is the length of the moment arm between the dumbbell and the shoulder when the extended 50 cm arm is positioned at a 60° angle? (Answer: 43.3 cm)
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Chapter 7 Solutions
EBK 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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- Movement at the shoulder joint that moves the upper limb laterally away from the body is called ________. elevation eversion abduction lateral rotationarrow_forwardWatch this video (http://openstaxcollege.org/l/flexext) to learn more about the flexion and extension of the knee, as the femur both rolls and glides on the tibia to maintain stable contact between the bones in all knee positions. The patella glides along a groove on the anterior side of the distal femur. The collateral ligaments on the sides of the knee become tight in the fully extended position to help stabilize the knee. The posterior cruciate ligament supports the knee when flexed and the anterior cruciate ligament becomes tight when the knee comes into full extension to resist hyperextension. What are the ligaments that support the knee joint?arrow_forwardBriefly define the types of joint movements available at a ball-and-socket joint.arrow_forward
- What is the origin of the wrist flexors? the lateral epicondyle of the humerus the medial epicondyle of die humerus the carpal bones of the wrist the deltoid tuberosity of the humerusarrow_forwardWatch this video (http://openstaxcollege.org/l/anatomical) to learn about anatomical motions. What motions involve increasing or decreasing the angle of the foot at the ankle?arrow_forwardDiscuss the structures that contribute to support of the shoulder joint.arrow_forward
- A muscle that has a pattern of fascicles running along the long axis of the muscle has which of the following fascicle arrangements? circular pennate parallel rectusarrow_forwardA high ankle sprain iis an injury caused by over stretching the ligaments connecting the tibia and fibula. What type of joint iis involved in this sprain? ball and socket gomphosis syndesmosis symphysisarrow_forwardWatch this video (http://openstaxcollege.org/l/anklejoint3) to learn about the ligaments of the ankle joint, ankle sprains, and treatment. During an inversion ankle sprain injury, all three ligaments that resist excessive inversion of the foot may be injured. What is the sequence in which these three ligaments are injured?arrow_forward
- Which of the following statements is correct about what happens during flexion? The angle between bones is increased. The angle between bones is decreased. The bone moves away from the body. The bone moves toward the center of the body.arrow_forwardWatch this video (http://openstaxcollege.org/l/anklejoint1) for a tutorial on the anatomy of the ankle joint. What are the three ligaments found on the lateral side of the ankle joint?arrow_forwardWhich statement is tine concerning the knee joint? The lateral meniscus is an intrinsic ligament located on the lateral side of the knee joint. Hyperextension is resisted by the posterior cruciate ligament. The anterior cruciate ligament supports the knee when it is flexed and weight bearing. The medial meniscus is attached to the tibial collateral ligament.arrow_forward
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