The contraction cycle does not always result in shortening of the muscle fibers and the whole muscle.

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: Muscle contraction can occur when: is it 1,2,3,4? A bands lengthen. myosin filaments shorten.…

A: Muscle is a specialized contractile tissue that is a distinguishing characteristic of animals.…

Q: Muscle that has a striped appearance is described asbeing ________.a. elasticb. nonstriatedc.…

A: A muscle is a soft tissue present in the most of the animals. The muscle cells comprise the filament…

Q: During the cross-bridge cycle of muscle contraction, what is the role of troponin? it changes shape…

A: The biological cells possess three movement types. These are muscular, amoeboid, and ciliary. The…

Q: The _______________________ of a muscle is usually attached to a movable part.

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

Q: Summation of contraction is also known as wave summation . Describe the role of calcium in wave…

A: The primary function of wave summation is to produce a smooth and continuous muscle contraction. It…

Q: Treppe increases skeletal muscle contraction strength by:

A:

Q: The effect of aging on the muscle tissue include decrease in , and increase in

A: Muscle tissue is a delicate tissue that makes muscles in animal bodies, and offers ascend to…

Q: Explain the characteristics of these muscle fibers: slow twitch, fast twitch oxidative and fast…

A: Skeletal muscle fibers are striated tissues. These tissues are under the control of the somatic…

Q: Slow twitch (sometimes called type I) muscle is the main muscle tissue used during endurance…

A: Muscle fibres of various types can be found in most of the body's muscles. However, some muscles…

Q: The force of muscle contraction may be altered by increasing/decreasing the stimulus interval…

A: Muscle Contraction: It is the activation of tension-generating sites within muscle cells.

Q: The biggest force of contraction can be produced by: Select one: a. SO fibers b. FOG fibers c. FG…

A: Invertebrates, there are two types of skeletal muscles: red and white muscles. Red muscles are red…

Q: Which of the following properties is not common to allthree muscle tissues?a. excitabilityb. the…

A: There are three types of muscle tissues namely, cardiac, skeletal, and smooth which perform many…

Q: Describe the role of both ATP and calcium ions in muscle contraction.

A: Muscle contraction can be described as a process triggered by an action potential transported…

Q: What the difference function the actin,myosin and type II muscle fibers

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

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 _______________________ of a muscle is usually attached to a fixed part.

A: Muscle are the soft tissue which facilitate the movements in the body. They are attached to bones…

Q: A muscle has a limit to how much it can contract, based on the limit of contraction of each…

A: The study of the human body can be divided into anatomy and physiology. The anatomy studies about…

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: After a period of vigorous activity what happens to the blood leaving the muscle

A: During exercise,  muscles need constant energy to contract and relax. So the body responds by…

Q: the structures in the image below. Complete the table to describe the basic structure of a skeletal…

A: A Tendon:  tendon is a fibrous connective tissue which attaches muscle to bone. B Epimysium:  is the…

Q: The tendon of a muscle O Is don

A: Tendons are tissues that attach a muscle to other parts of the body like bones. They are the…

Q: The contractile unit of a muscle fiber is called: O myosin O actin sarcomere O sarcolemma

A: Introduction :- Muscle fibres are made up of just one muscle cell. They aid in the control of the…

Q: contraction occurs as the length of the muscle increases. O a. Concentric O b. Eccentric O c. Static…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Contraction of a whole muscle follows the all-or-none principle. True False

A: The all or none law states that the strength with which a muscle fibre responds to a stimulus is…

Q: Most of the muscles acting in groups and most of skeletal muscles are arranged in opposing pairs at…

A: Agonist muscle is the muscle which is performing the action and its active contraction produces the…

Q: A fatigued muscle will

A: Muscle refers to the soft tissue present generally in animals. Cells of muscle tissue are made up of…

Q: True or False A function of the muscular system is to provide the body with heat.

A: Muscular system of the body is responsible for providing posture accuracy to the body, helps in…

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

A: Muscle contraction is the development of tension in the muscle fibers. It can be described with two…

Q: In smooth muscle fibers, the thin filaments attach to structures called functionally similar to Z…

A: Muscular tissue is made up of long cells of muscle fibers. It has contractile proteins that are…

Q: he contraction cycle does not always result in shortening of the muscle fibers and the uscle. O True…

A: For a muscle cell to contract, the sarcomere which is the basic functional unit of muscle…

Q: Acetylcholinesterase is the enzyme that breaks down and inactivates acetylcholine. Some nerve gases…

A: Nerve gas binds to acetylcholinesterase enzyme but only at 1 site. Nerve gas has a phosphorus group…

Q: differences between Type I and Type II muscle fiber

A: The muscles aids in controlling the physical forces inside the body. When the muscles are grouped…

Q: A&P1 Explain the difference between concentric and eccentric muscle contractions and give an…

A: Difference between concentric and eccentric muscle contractions.   Concentric muscle contraction…

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 smooth, sustained contraction from rapid stimulation of skeletal muscle fibers is called _______

A: TISSUE:- These tissues are different from other tissues as they have the ability to contract and…

Q: mitochondria

A: Muscles cells contain many mitochondria because the muscles cells are having myosin and actin…

Q: Very shortly describe how our muscles may relax after they contraction

A: When a muscle fiber is excited, Ca2+ is rapidly released from the sarcoplasmic reticulum inducing…

Q: Myoglobin makes some muscle fibers to appear red

A: A mature skeletal muscle consists of thousands of muscle fibers which are known as myofibrils. These…

Q: What effect does increasing the frequency of action potentials in a skeletal-muscle fiber have upon…

A: Skeletal muscles -- are the muscle which are in our voulantry control These  are attached to the…

Q: The external sheath of dense connective tissue surrounding the entire muscle is called perimysium O…

A: The muscles which are attached to the bones can contract voluntarily and are mainly involved in the…

Q: Rate/force of muscle contraction

A: Muscle contraction is an increase in tension or decrease in muscle length which occurs during…

Q: The muscle relaxes if no new nerve signal arrives. However the neurotransmitter from the previous…

A: The force exerted by the muscle is less than its maximum in a concentric contraction, and the muscle…

Q: The outermost layer of connective tissue surrounding a skeletal muscle is the epimysium tendon…

A: Step 1 Skeletal muscle consists of numerous muscle cells called muscle fibres. These muscle fibres…

Q: Describe the different potentials for regeneration of the three types of adult muscle after injury.

A: Muscle regeneration is a very dynamic process.  This process usually starts during the first of 4–5…

Q: If acetylcholine re-uptake is blocked in the synaptic cleft, then what happens in the muscle cell?…

A: "Muscle contraction" is responsible for every movement in our bodies and may be found in every…

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.