Muscle spindles :-a- are found in all skeletal musclesb- are found only in large skeletal musclesc- consist of small numbers of extrafusal muscle fibersd- consist of a large number of extrafusal muscle fibers

Q: Which of the following is found on the outside of skeletal muscles? a). Myofibrilsb). Sheathc).…

A: Answer- Skeletal muscle is comprised of myofibrils that are arranged in the form of bundles…

Q: There are 3 types of muscle... skelatal, smooth and cardiac. What type of contraction are they…

A: The skeletal muscles are the voluntary (control by our own will) whereas the smooth and cardiac…

Q: true or false 6. Muscle cells are mesenchymal in origin. 7. Myomesin binds to titin molecules and…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Ans Column I Column II Ca binds to calmodulin 1. Binds calcium in skeletal muscle cells Ca binds to…

A: Muscles are soft tissues present in most animals. They contain protein filaments called actin and…

Q: QUESTIÓN 27 Place the following muscular system components in order from the smallest unit of…

A: Muscular movement is the basic type of movement which is observed in majority of vertebrates…

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: Skeletal muscle cell(key terms: striated, contracting proteins, contractions, nucleus location) This…

A: Skeletal muscle cells are the cells that help us move and are compartmentalized in the body into…

Q: Explain the following two statements: Muscles can only actively contract; muscle fibers lengthen…

A: The statements "muscles can only actively contract" and "muscle fibers lengthen passively" are…

Q: How is muscle contraction stopped? Which of the following is/are correct?   A) The brain stops…

A: The process of muscle contraction is a sequence of events that are responsible for the contraction…

Q: Skeletal muscle tone :-a- is a dynamic stretch reflexb- has a dynamic state c- is increased during…

A: The muscular system of the body is the system of muscles that provides strength, shape and…

Q: Myosin filaments iterdigitate with actin filaments in order to bring about muscle contraction.…

A: The process of muscle contraction is necessary for the normal physical activities of the body. Force…

Q: Muscular atrophy occurs when: A. A patient lacks the coordination needed to walk normally. B. Muscle…

A: Muscular atrophy refers to the loss of skeletal muscle. The atrophied muscle normally smaller and…

Q: number graded recruitment constant summation contraction Not all muscle contractions are of equal…

A: The muscle fiber helps in the process of muscle contraction, which helps in the movement.  When the…

Q: Which of the following statements regarding summation in skeletal muscle fibers is true?…

A: The correct options are 2 and 4.In skeletal muscles, the muscle fibers are innervated by motor…

Q: The functional unit of skeletal muscle is the sarcomere area between two Z lines and sarcomere area…

A: Skeletal muscles are also known as striated muscles as they are striped or striated. It is a…

Q: Based on your understanding of skeletal muscle fiber physiology, which of the following processes is…

A: ATP is the adenine tri phosphate and is the instant source of energy .It is used in many of the…

Q: In an isometric contraction the muscle develops tension but does not - exhibit elasticity does not…

A: * there are three types of muscle contractions present  are:  Concentric  Eccentric Isometric…

Q: an isotonic concentric contraction, muscle length shortens muscle tension exceeds the force of the…

A: Concentric and eccentric isotonic contractions are the two forms of isotonic contractions. The…

Q: In relaxed muscle, the myosin-binding site on actin is blocked by ________. a. titin b. troponin c.…

A: Tropomyosin is known to block myosin-binding sites on actin molecules. It prevents the formation of…

Q: Which of the following is arranged in order from smallest tolargest?a. Motor unit < sarcomere…

A: When a nerve impulse travel to the muscle contraction that is an action potential causes the muscles…

Q: Which muscle filament in skeletal muscle contains the calcium-binding protein? O Thick O Sarcomere O…

A: Skeletal muscles play a huge role in the way our bodies function because, without muscles, our bones…

Q: place the events that occur during muscle contraction and relaxation in their proper order.  Insert…

A: Anatomy and physiology are the branches of biology, anatomy deals with the study of the structure of…

Q: The events during the leg phase of a muscle fiber twitch begin with................ and end…

A: Muscle is a soft and contractile tissue that is responsible for body movement. Muscle cells consist…

Q: Stretch of an innervated muscle evokes :-a- contraction of its spindlesb- contraction of its…

A: The stretch reflex (myotatic reflex) is a monosynaptic reflex that controls the length of a skeletal…

Q: Put the following events of excitation-contraction coupling in the order in which they occur. 1.…

A: The term excitation-contraction coupling (ECC), first coined by Alecxander sandow in 1952, describes…

Q: Suppose a drug blocks entry of calcium from the extracellular fluid. What if, anything, would happen…

A: Muscle cells are specialized cells that use contractile motion for movement either voluntary or…

Q: which type of muscle fibers is ATP synthesized aerobically in mitochondria?…

A: Source of energy which is utilized to power the movement of contraction in working muscles is…

Q: Summed twitches create a greater amount of tension in skeletal muscle cells because NOTE: select all…

A: A muscle twitch is a condition in which the muscles in our body involuntary contracts that are…

Q: Contraction of muscle fibers in skeletal muscle is initiated by the uptake of calcium by the…

A: Movement refers to any change in body position. It is a fundamental characteristic of living beings.…

Q: Arrange the following in statements in the order that they occur during muscle contraction: 1-10…

A: Muscle contraction is the activation of tension-generating sites within muscle fibers. It does not…

Q: Letter C is labeling А Tendon

A: Muscle are basically a soft tissue which have property of undergo contractions with action potential…

Q: Which of the following would NOT occur as a result of regular exercise to a specific muscle group…

A: The exercising involves the training of muscles by putting heavy load on them, due to exercising the…

Q: "When a muscle develops increased tension, but does not shorten, it is said to exhibit" isotonic…

A: Muscle contraction It is defined as the tightening, shortening, or lengthening of muscles during the…

Q: a muscle cell structural element that consist primarily of an actin filament is a/an______

A: A Muscle cell has actin filaments which formed structural element of muscle.

Q: Which of these statements are TRUE regarding fast-twitch fibers? S1 = Fast-twitch fibers contract…

A: Skeletal muscle fibres come in two varieties: 1. slow-twitch and 2. fast-twitch. Fast-twitch muscle…

Q: In which type(s) of muscle cells does each cell have its own neuromuscular junction?…

A: As per the guidelines, first is answered. Cells called muscle fibres are composed of skeletal muscle…

Q: In some fitness exercises you will build muscle mass but do not train the muscle to be effective.…

A: Muscle buildup is important for the development of strength and agility. Muscle buildup is basically…

Q: When a skeletal muscle is suddenly stretched :-a- it relaxes suddenlyb- it develops a static stretch…

A: The muscular system comprises of skeletal muscles, smooth muscles and tendons. This system plays an…

Q: What is the difference between treppe and tetany? Mark ALL that apply. there is no summation in…

A: Treppe is a muscle contraction in which the graduated series increased in vigorous contractions when…

Q: .. The difference between FF (type II, glycolytic) motor unit and S (type I) motor unit is that a S…

A: Introduction:- When identifying muscle fibres, two factors to consider are how fast some fibres…

Q: Smooth muscles relax when: a) myosin kinase phosphorylates the myosin head b) myosin phosphatase…

A: Smooth muscles relax when myosin phosphatase removes a phosphate group from myosin. (Option B is…

Q: Which of the following statements below will happen when a muscle is contracting? Point B will move…

A: The sarcomere is the structural component of muscle contraction. Myosin, a motor protein found in…

Q: PLEASEEEEE CREATE A DIAGRAM A DIAGRAM DRAW A DIAGRAM TO OUTLINE THE MUSCLE CONTRACTIONS STARTING…

A: The muscular system consists of skeletal muscle, cardiac muscle and smooth muscle. The muscular…

Q: Which of the following statements is/are TRUE regarding control of muscle? S1= A twitch results from…

A: Here i discuss about the muscles control.

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.