During muscle contraction, the cross-bridge detaches when ________.a. the myosin head binds to an ADP moleculeb. the myosin head binds to an ATP moleculec. calcium ions bind to troponind. calcium ions bind to actin

Q: Contraction of sarcomeres is dependent upon the motor protein attached to and moving along

A: The germ layer, mesoderm, is the source of soft tissue called muscles. Connective tissue is…

Q: Muscle Fiber Types 2 If a type I fiber and a type II fiber of the same size are stimulated side by…

A: There are mainly three types of muscle fibres- slow oxidative ( type I ), fast oxidative type IIa )…

Q: In muscle contraction, when nervous stimulation ___, it causes Ca2+ to be ___ the sarcoplasmic…

A: The muscle contraction is depends on the interaction of actin (thin filament) and myosin (thick…

Q: motor neuron to the sarcolemma of the skeletal muscle fiber). Practice by drawing in circled numbers…

A: There are a few important points that should be kept in mind : In nerve and muscles cell, membrane…

Q: What property do all muscle tissues have in common?a. composed of collagen and elastin filamentsb.…

A: Muscles are required in breathing, talking, running, walking, and anybody movement. Actin and…

Q: An important protein in contractile muscle. OA. keratin O B. myosin O c. elastin OD. fibrin

A: The proteins have a variety of functions in the body. The functions of the proteins in the body are…

Q: In both smooth and skeletal muscle calcium must be actively transported out of the fluid surrounding…

A: As per our honor code, we are authorized to answer only one question at a moment. As you have not…

Q: Movement of sarcomeres is dependent upon the motor protein ______ attached to and moving along…

A: The smallest functional unit of a striated muscle tissue is called a sarcomere. The muscle fiber is…

Q: During sarcomere contraction, Select one: Oa. Calcium, troponin Ob. Calcium, microfilaments O c.…

A: The answer is option A- calcium, troponin

Q: Which of the following is true concerning the role of Calcium in the contraction of muscle- cells?…

A: A muscle is a smooth tissue in animals. On the basis of structure, contractile properties and…

Q: During muscle contraction, the I band a. hides the H zone. b. shortens or narrows. c. overlaps the Z…

A: SARCOMERE It is the complicated unit of striated muscle tissue. It is the repeating unit between two…

Q: Muscle Fiber Types 2 If a type I fiber and a type II fiber of the same size are stimulated side by…

A: We know that The muscular system is an organ system consisting of smooth, skeletal, and cardiac…

Q: The binding of calcium to troponin will directly cause A. the hydrolysis of ATP B. the binding of…

A: Calcium ions and actin binding proteins play an important role in muscle contraction and relaxation.…

Q: A muscle contraction occurs when the "heads" on the an't find theanswer in the textboo bind to the…

A: In the human body, muscle contraction is considered a physiological process, where there will be an…

Q: Smooth muscle

A: Smooth muscle:-  Is a type of tissue found in the wall of hollow organs such as the intestine,uterus…

Q: Thick Filaments contain ⒸA. Actin OB. Troponin O C. Tropomyosin O D. Myosin OE. All of the above

A: Muscular system is a type of body system which is involved in regular contraction and relaxation so…

Q: During muscle contraction, binding sites for myosin are uncovered by the movement of A. Tropomysin…

A: A. Tropomyosin   During muscle contraction, the binding sites for myosin on the actin filament are…

Q: Skeletal, smooth, and cardiac muscle are similar in that they all _____.   A are divided into motor…

A: SKELETAL MUSCLES SMOOTH MUSCLES CARDIAC MUSCLES They are striated muscles. They are non-striated…

Q: Diagram a sarcomere, showing the basic organization ofthin (actin) and thick (myosin) filaments.…

A: Sarcomere- A unit of tissue of striated muscle is called a sarcomere. It is the area falling between…

Q: What causes relaxation in a skeletal muscle fiber Select one: a. Myosin remains attached to actin b.…

A: Each skeletal muscle is an organ that consists of various integrated tissues. These tissues include…

Q: The depletion of ATP in muscle cells causes ____. myosin heads to remain bound to actin…

A: answer:1 The depletion of ATP in muscle cells causes calcium ions to be released from the…

Q: The cell membrane of a muscle fiber is called________.a. myofibrilb. sarcolemmac. sarcoplasmd.…

A: Muscle is a soft tissue which is found in most animals. They are helpful in providing movement and…

Q: The functional unit of a muscle fiber is the, a segment from one Z disc to thenext.a. myofibrilb. I…

A: Z-discs (Z-disk, Z-line, Z-band) are the smallest functional units in striated muscle, defining the…

Q: Dark areas called _____ made of proteins are where actin filaments attach within a myofibril.  A. Z…

A: The muscles with alternate light and dark bands which remain associated with skeleton and can…

Q: D2

A: When the mesodermally derived muscle tissue encounters any changes in either their length or the…

Q: Cardiomyocytes differ from skeletal muscle cells in that cardiomyocytes ______.   A "do not have…

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

Q: The location of a muscle’s insertion and origin candetermine ________.a. actionb. the force of…

A: The skeletal muscle attaches to the bone at two or more places. When the place is a bone that…

Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.