Mary overheard an argument between two students who could notdecide if a weight lifter who lifts a weight above the head and then holdsit there before lowering it is using isometric, concentric, or eccentricmuscle contractions. Mary is an expert on muscle contractions, so shesettles the debate. What is her explanation?

Q: All exercises listed below are examples of a plyometric exercise except... Squats Jump rope O Hops…

A: Plyometrics. - this term was coined by Fred Wilt. He coined the term after watching Soviet athletes…

Q: Muscles that are immobilized for long periods of time, as with a cast, frequently get smaller. Why?…

A: The reduction in muscle mass due to temporary immobilization is called muscle atrophy. It may be…

Q: Describe an everyday activity not involving the arms thatwould involve concentric contraction and…

A: Muscle is a soft tissue like structure which is primarily responsible for the movement in the body.…

Q: the muscle that is "mainly" responsible for a movement is called the? the muscle that acts in…

A: It is a bundle of fibrous tissues produce motion and force in human body and helps in maintaining…

Q: Explain, structurally, why pennate muscles tend to be very powerful.  What aspect of muscular…

A: Pennate muscles are often called penniform muscles with fascicles' group and attach obliquely to its…

Q: A patient is lifting a dumbbell from waist height to shoulder height, bending the elbow. What form…

A: Introduction:- The muscular system is an organ system that connects bones, tendons, and heart…

Q: A muscle that has a pattern of fascicles running along thelong axis of the muscle has which of the…

A: Step 1 Muscle is a tissue of mesodermal origin where the cells called myocytes are specialized to…

Q: If an athlete increases their strength capability by 15% and their body mass by 20%, their ability…

A: Muscle contraction Muscle contraction is defined as the shortening or stretching of muscles while…

Q: muscle is contracting gonit. ntagarit: Ihe muscle tihat is relamng ar lengthening 4. What did you…

A: In our body, the movements of different parts of the body are done through a specific system of…

Q: Name a muscle that undergoes eccentric contraction as you sit down in a chair.

A: Eccentric contractions as the name says is the contraction of the muscle during the eccentric phase…

Q: Discuss the Prime movers, agonist, antagonist, synergists, fixator muscles

A: Muscles are the soft tissues made up of many different fibers that allow these muscles to contract…

Q: To demonstrate muscle fatigue, a student held an 8 lb dumbbell in her hand and abducted her arm…

A: Ans - the correct answer for the above question is- A) Different motor units were contracting while…

Q: The benefit of __ fascicle architecture is the ability to pack more fibers into a given area and…

A: Whenever a group of muscle strands is packaged as a unit inside the entire muscle it is known as a…

Q: Let your partner place a heavyweight (ex. books) on your hand which is too heavy to lift. Keep your…

A: In this experiment, we will observe the muscles of the arm as you try to flex the elbow joint with a…

Q: What is a motor unit? Explain why the size of motor unitscan be different in different muscles

A: Introduction: The contractile tissue that brings about a movement is muscle. Muscles can be regarded…

Q: In my study guide, I have been going through notes and I am unsure of the topic on muscle…

A: Joints are the point of contact between two bones or a bone and a cartilage or between bones and…

Q: How many muscles do we use to lift a cup?

A: Muscle is a soft tissue found in most animals.Muscle cells contain protein filaments of actin and…

Q: The muscles of a recently deceased human can remain in a contracted state, termed rigor mortis, for…

A: Rigor mortis: It is one of the recognizable signs of death , caused by chemical changes in the…

Q: Each of the pairs of phrases below describe steps during skeletal muscie contraction. The 2nd phrase…

A: Muscle tissue is a type of tissue which contain actin , Troponin and myosin proteins so as to allow…

Q: What change does ACh cause in an ACh receptor? Howdoes this electrically affect the muscle fiber?

A: ACh stand of acetylcholine receptor and it binds to ACh receptor. After binding it open the Na+ gate…

Q: myofibril is only found in straight muscles. True or false

A: Muscles are specialized tissues that are responsible for producing force and movement in the body.…

Q: The ________ opposes or resist, the action  caused by the prime mover Antagonist  Prime mover…

A: Muscles contract to produce movements and motion. Muscle always works in pair.

Q: Maximum force * Exerted when maximum number of cross bridges make contact Exerted at optimum resting…

A: Muscles come under the category of soft tissues. A human body is comprised of approximately six…

Q: When using muscles how do you generate more tension when picking up a heavier object than you do…

A: The amount of tension produced by muscles depends on the cross-sectional area of the muscle fiber…

Q: Describe the role ofATPin skeietal muscle contraction

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Q: Which of the following statements is true? Muscles push on bones; they do not pull O The end of the…

A: Bones are rigid, tough connective tissues that are reinforced with various specialized bone cells…

Q: You are competing in a pull-up competition. What type of muscle  contractions are occurring in your…

A: Muscle contraction is a complex phenomenon and due to various kinds of variables moving, it has been…

Q: Which of the following statements appropriately use(s) the underlined term? a. A synergisthelps…

A: Muscles are described using anatomical terminology according to the actions and their structures.…

Q: Picking up a pencil requires what kind of stimulus to a muscle? OSub-threshold stimulus O Threshold…

A: Introduction :- Skeletal muscle is a type of striated muscular tissue that is directly controlled by…

Q: Please describe two functions of the muscles BESIDES MOVING OUR BONES

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Q: What type of contraction  of the hamstring muscles would occur during flexion of the leg and then…

A: The skeletal muscles are one of the three types of muscles found in the human body. These muscles…

Q: What are the differences in the cellular and molecular levels in a bodybuilder arms muscles compared…

A: There is a lot of difference between the muscles of a bodybuilder compared to those of a weaker,…

Q: If your biceps brachii muscle attaches to your forearm 2 inches below your elbow, the distance from…

A: Introduction  The biceps muscle is located in the front of the upper arm. The biceps consists of a…

Q: Muscles provide the force for moving body parts.

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Q: Movement in the skeletal muscles in the body is affected by physiological mechanisms known as…

A: Introduction: A lever is a tough and elongated object that rotates about a fixed point. This point…