SEELEY'S ANATOMY+PHYSIOLOGY
12th Edition
ISBN: 9781260172195
Author: VanPutte
Publisher: RENT MCG
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Chapter 10, Problem 2CT
Consider only the effect of the brachioradialis muscle for these questions: If a weight is held in the hand and the forearm is flexed, what type of lever system is in action? If the weight is placed on the forearm? Which system can lift more weight, and how far?
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Consider only the effect of the brachioradialis muscle for these questions: If a weight is held in the hand and the forearm is flexed, whattype of lever system is in action? If the weight is placed on the forearm? Which system can lift more weight, and how far?
Give a part of the body that uses the 2nd class lever system and;
Explain how does the type of the lever system employed by the muscle influence the force it can generate and the load it can overcome?
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.
Chapter 10 Solutions
SEELEY'S ANATOMY+PHYSIOLOGY
Ch. 10.1 - Distinguish between the origin and the insertion...Ch. 10.1 - Describe the roles of the following in muscle...Ch. 10.1 - Describe the different orientations of muscle...Ch. 10.1 - What geometric shapes can muscles have?Ch. 10.1 - List the criteria used to name muscles, and give...Ch. 10.1 - Using the terms fulcrum, lever, and force, explain...Ch. 10.1 - Describe the three classes of levers, and give on...Ch. 10.2 - Name the major movements of the head caused by...Ch. 10.2 - What is unusual about the insertion (and sometimes...Ch. 10.2 - Which muscles ore responsible for moving the ears,...
Ch. 10.2 - What usually causes ptosis on one side? Which...Ch. 10.2 - Name the muscles responsible for opening and...Ch. 10.2 - Prob. 13AYPCh. 10.2 - Contrast the movements produced by the extrinsic...Ch. 10.2 - Explain the interaction of the suprahyoid and...Ch. 10.2 - Prob. 16AYPCh. 10.2 - Describe the muscles of the eye and the movements...Ch. 10.3 - List the actions of the group of back muscles that...Ch. 10.3 - Prob. 19AYPCh. 10.3 - Explain the anatomical basis for the segments...Ch. 10.3 - What openings penetrate the pelvic diaphragm...Ch. 10.4 - Name the seven muscles that attach the scapula to...Ch. 10.4 - Prob. 23AYPCh. 10.4 - What muscles cause flexion and extension of the...Ch. 10.4 - Prob. 25AYPCh. 10.4 - Prob. 26AYPCh. 10.4 - Prob. 27AYPCh. 10.4 - Prob. 28AYPCh. 10.4 - Prob. 29AYPCh. 10.4 - Describe the muscles that move the thumb. The...Ch. 10.5 - Prob. 31AYPCh. 10.5 - Prob. 32AYPCh. 10.5 - Prob. 33AYPCh. 10.5 - What movement do the fibularis muscles nave in...Ch. 10.5 - Prob. 35AYPCh. 10.5 - Prob. 36AYPCh. 10 - Muscles that oppose one mother are a. synergists....Ch. 10 - The most movable attachment of a muscle is its a....Ch. 10 - The muscle whose name means it is to the side of...Ch. 10 - In a class III lever system, them a. fulcrum is...Ch. 10 - Prob. 5RACCh. 10 - An aerial circus performer who supports her body...Ch. 10 - Prob. 7RACCh. 10 - Prob. 8RACCh. 10 - The soft palate muscles a. prevent food from...Ch. 10 - Prob. 10RACCh. 10 - Prob. 11RACCh. 10 - Prob. 12RACCh. 10 - Prob. 13RACCh. 10 - Prob. 14RACCh. 10 - Prob. 15RACCh. 10 - Prob. 16RACCh. 10 - Which of these muscles is an antagonist of the...Ch. 10 - Prob. 18RACCh. 10 - Which of these muscles is an intrinsic hand muscle...Ch. 10 - Given these muscles: Iliopsoas Rectus femoris...Ch. 10 - Prob. 21RACCh. 10 - Prob. 22RACCh. 10 - The ________________ muscles evert the foot,...Ch. 10 - Prob. 24RACCh. 10 - For each of the following muscles: (1) describe...Ch. 10 - Consider only the effect of the brachioradialis...Ch. 10 - Prob. 3CTCh. 10 - Prob. 4CTCh. 10 - When a person becomes Unconscious, the tongue...Ch. 10 - Prob. 6CTCh. 10 - Savannah started a 200-meter dash and fell to the...Ch. 10 - Prob. 8CT
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- You 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_forwardIf 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_forwardWhat type of lever is the vastus medialis? Support your answer with a free body diagram. The vasti muscles are used both for sit-to-stand AND stand-to-sit movements. Which of these two tasks represents a concentric contraction and which represents an eccentric contraction? Which muscle (vastus lateralis or medialis) do you think is more important for doing a slow, controlled stand-to-sit transition? If you witnessed your grandfather "plopping" (doing an uncontrolled sit) into a chair, would you recommend giving him eccentric or concentric strengthening exercises for his vasti muscles? Justify your answer.arrow_forward
- What type of muscle contraction is required at the hip during the action of moving from standing to sitting down in a chair? isometric, eccentric or concentric? What muscles are producing the force at the hip during this movement?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_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_forward
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- You are competing in a pull-up competition. What type of muscle contractions are occurring in your latissimus dorsi muscles immediately after you grab the bar? As your body begins to move upward toward the bar? When your body begins to approach the mat?arrow_forwardIn the EMG experiment. the measured force came from the contraction of which muscles? Check all that apply. Check All That Apply flexor digitorum superficialis flexor pollicis longus flexor carpi ulnaris flexor carpi radialis palmaris longusarrow_forwardWhich of the following statements is (are) true about lever systems?a. The effort is the origin of the muscle.b. The fulcrum is a joint.c. The resistance is between the effort and the fulcrum in a third-class lever.d. First-class levers are the most common in the human body.e. The quadriceps muscles use a third-class lever to extend the knee.arrow_forward
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