Human Anatomy
9th Edition
ISBN: 9780135168059
Author: Marieb, Elaine Nicpon, Brady, Patricia, Mallatt, Jon
Publisher: Pearson Education, Inc.,
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Textbook Question
Chapter 11, Problem 3CRCAQ
Assume 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.
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Assume 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.
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?
The following are types of movement: Explain each terminology and how does these movement works. Cite example for each movement. (Ex. for ADDUCTION- Bringing fingers together from a spread wide apart position)
Flexion
Extension
Abduction
Adduction
Rotation
Chapter 11 Solutions
Human Anatomy
Ch. 11 - Name the fascicle arrangement in a muscle whose...Ch. 11 - Prob. 2CYUCh. 11 - Which types of leavers operate at a mechanical...Ch. 11 - In a skeletal/muscular lever system, what...Ch. 11 - Most skeletal muscles of the body operate at a...Ch. 11 - Biceps brachii and brachialis both flex the...Ch. 11 - A muscle that abducts the thigh would cross the...Ch. 11 - At most joints (the knee and ankle are...Ch. 11 - Prob. 9CYUCh. 11 - Prob. 10CYU
Ch. 11 - Prob. 11CYUCh. 11 - Prob. 12CYUCh. 11 - Prob. 13CYUCh. 11 - Use your knowledge of word roots and the criteria...Ch. 11 - Prob. 15CYUCh. 11 - Describes the six movements possible at the...Ch. 11 - What muscle is the prime mover of dorsiflexion?...Ch. 11 - How do the lesser gluteals—gluteus medius and...Ch. 11 - Where is the linea alba located, and what muscles...Ch. 11 - Define the boundaries of the triangle of...Ch. 11 - Prob. 21CYUCh. 11 - Identify the body region where the following...Ch. 11 - Prob. 23CYUCh. 11 - Prob. 24CYUCh. 11 - Prob. 1RQCh. 11 - Prob. 2RQCh. 11 - Match the muscles in column B to their embryonic...Ch. 11 - The muscle that closes the eyes is (a) the...Ch. 11 - Prob. 5RQCh. 11 - Prob. 6RQCh. 11 - Prob. 7RQCh. 11 - Prob. 8RQCh. 11 - Prob. 9RQCh. 11 - Prob. 10RQCh. 11 - The major muscles used in the up portion of a...Ch. 11 - Prob. 12RQCh. 11 - Prob. 13RQCh. 11 - Define and distinguish first-, second-, and...Ch. 11 - (a) Name the four pairs of muscles that act...Ch. 11 - List all six possible movements of the humerus...Ch. 11 - (a) Name two forearm muscles that are both...Ch. 11 - (a) Name the lateral rotators of the hip. (b)...Ch. 11 - Prob. 6SAEQCh. 11 - Define (a) a fascial compartment in a limb and (b)...Ch. 11 - Name two muscles in each of the following...Ch. 11 - Prob. 9SAEQCh. 11 - Prob. 10SAEQCh. 11 - Deduce some characteristics of the following...Ch. 11 - For the following muscles, list one action of...Ch. 11 - (a) Define palpation. (b) Why is a knowledge of...Ch. 11 - Explain how one locates the proper site for...Ch. 11 - Prob. 15SAEQCh. 11 - Name the borders of the triangle of auscultation.Ch. 11 - Prob. 17SAEQCh. 11 - Prob. 1CRCAQCh. 11 - Prob. 2CRCAQCh. 11 - Assume you are trying to lift a heavy weight off...Ch. 11 - Prob. 4CRCAQCh. 11 - Prob. 5CRCAQCh. 11 - Based on its fascicle orientation, determine...Ch. 11 - Prob. 7CRCAQCh. 11 - What class of lever is described by the following...Ch. 11 - Walking to her car after her 65th birthday party,...Ch. 11 - An athletic trainer was examining a college...
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- A good way to work your biceps would be to: A) Laying on back with arms crossed and curling the chin to the knees.B) Arms straight (palms forward) holding a weight; Curl the wrist to the shoulder.C) Arm in L position looking at the ground (with weight); Straighten the arm at the elbowD) Arms straight (holding weight); Keep the arms straight and extend them outarrow_forwardProper positioning is critical to the prevention of pressure injuries and contractures. When the patient is in the supine position, with knees bent for prolonged periods of time, what is a common contracture that you want to prevent? (Assume hips are in a neutral position.) Knee extension contracture Dorsiflexion contracture Knee flexion contracture Hip internal rotation contracturearrow_forwardWhat type of contraction occurs in wrist extension?arrow_forward
- List all six possible movements that can occur at the shoulder joint and name the prime mover(s) of each movement. Then name their antagonists.arrow_forwardWhich of the following is the antagonist when using a hand grip strengthener? Flexor Digitorum superficialis Extensor Digitorum Longus Palmaris Longus Extensor Digitorumarrow_forwardWhen the weight is traveling upwards, what are the agonist(s) for the action occurring at the wrist joint? must watch video clip to answer https://www.youtube.com/watch?v=6pWu4Xko9qM a. Flexor carpi radialis, Extensor carpi radialis brevis, Extensor carpi radialis longus, Extensor pollicis longus, Abductor pollicis longus b. Extensor carpi ulnaris, extensor carpi radialis brevis, extensor carpi radialis longus c. Flexor carpi ulnaris, Extensor carpi ulnaris d. Flexor carpi radialis, Palmaris longus, Flexor carpi ulnarisarrow_forward
- With a laboratory partner, determine how and why maintaining full flexion of all the fingers is impossible when passively moving the wrist into maximal flexion. Is it also difficult to maintain maximal extension of all the finger joints while passively taking the wrist into full extension?arrow_forwarddoes the radius and the unla rotate in the same direction when the triceps or biceps contract? Explainarrow_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_forward
- How much force must be produced by the biceps brachii, attaching at 90? to the radius at 3 cm from the center of rotation at the elbow joint, to support a weight of 200 N held in the hand at a distance of 30 cm from the elbow joint? (Neglect the weight of the forearm and hand, and neglect any action of other muscles)arrow_forwardWhen you flex your biceps brachii while doing “biceps curls,” what is the type of movement?arrow_forwardAn 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.arrow_forward
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