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

Q: Hill's equation gives a relation between muscle contraction rates νν and muscle tension TT…

A: We have to rewrite the equation in a form to show that T is dependent on v including T0, alpha and…

Q: Explain the differences between isometric and isotonic contractions.

A: Answer: Introduction: Isotonic contraction (iso=equal; tonic= tension), means the tension produced…

Q: Using the tension graph, explain why skeletal muscle can exhibit tetany (sustained contraction) but…

A: Physiologic tetanus refers to sustained muscle contraction, which occurs due to the generation of…

Q: List five proteins of the myofilaments

A: Introduction Muscles are composed of muscle fibers that allow them to contract or relax. These…

Q: Describe the function and source of calcium ions in initiating contraction in skeletal muscle?

A: We know that Our body contains different types of ions such as Sodium, Potassium, Calcium, Chloride,…

Q: Explain why it is important for cardiac muscle to havelonger-lasting contractions than skeletal…

A: The muscular system consists of three types of muscle-smooth muscle, cardiac muscle and skeletal…

Q: What ion is involved in summation of contraction?

A: Contraction is defined as the process of shortening of I band during muscle contraction.

Q: Discuss how calcium is a signaling molecule that causes the contraction of the sarcomere.  This…

A: In an eccentric contraction of the skeletal muscle, the muscle lengthens under tension because there…

Q: Question 12 Under what conditions would the gluconeogenesis pathway be necessary? O When cells are…

A: Glucose is the only energy source for brain cells and red blood cells in animals. Furthermore, both…

Q: . Explain why it is important for the speed and strength ofheart contractions to be regulated both…

A: The heart can be defined as the muscular organ of the body located posterior to the breastbone, and…

Q: explain how the shortening velocity can be varied from very fast to very slow even though the load…

A: Muscle contraction will depend upon two types of velocity. The twitch and tetanic. The twitch refers…

Q: Describe the effect of increasing the load on a skeletal muscle fiberon the velocity of shortening?

A: A skeletal muscle is a type of muscle that remains attached to the skeletal system i.e. bones in the…

Q: Impairment of intracellular calcium homeostasis in muscle fibers lead to chronic, severe muscle…

A: The sarcoplasmic reticulum(SR) regulates the amount of calcium in muscles. Following an increase in…

Q: Calcium is the trigger for contraction of all muscle types. How does its binding site differ in…

A: In the human body, there are three types of muscles, skeletal muscles, cardiac muscles, and smooth…

Q: Explain what happens to the length of the A band,I band, and H zone during contraction.

A: A band, I band and H zone are the zones present in sarcomere

Q: Describe and explain the sliding filament model of contraction. Be sure to include in your response…

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

Q: Describe the physical state of muscle fiber in rigor mortis and the conditions that produce this…

A: According to the question, we have to mention the physical state of muscle fiber in rigor mortis and…

Q: Where does Ca2+ for contraction come from

A: Epithelial tissue, connective tissue, muscular tissue, and nerve tissue are the four fundamental…

Q: Discuss the metabolic pathways of ATP production in skeletal muscle in terms of timing, mechanism,…

A: Muscle ATP stores are limited, metabolic pathways must be triggered to keep ATP resynthesis rates at…

Q: Describe the organization and composition of skeletal muscle from smallest to largest components

A: Introduction: The soft tissue present in all mammals is muscle. The muscle cells comprise protein…

Q: Describe the changes that occur in skeletal muscle as a result of endurance training. Include a…

A: Endurance training is sustained physical exercise to improve the endurance of an individual.…

Q: Define and describe hypertrophy of skeletal muscles. Whatconditions stimulate it?

A: Hypertrophy is described as a condition where there is an increase in the skeletal muscles. This…

Q: Follow the events of excitation-contraction coupling that lead to cross bridge activity.

A: The sequence of events that result in the contraction of an individual muscle fibre begins with a…

Q: Contrast the effect of phasic and sustained skeletal muscle contraction. Explain the importance of…

A: Skeletal muscles are one of the three chief types of muscles found in the muscular system of the…

Q: Mention the two main proteins of the skeletal muscle with their subdivisions

A: Skeletal muscle are made up of various tissues that are integrates. They consits of skeletal muscle…

Q: Why calcium is important in skeletal muscle contraction?

A: All muscle filaments use Calcium ion (Ca2+) as their fundamental regulatory and signalling molecule.…

Q: List two factors that influence contractile force and two that influence velocity of contraction.

A: The soft tissue that is located in most animals, is called the muscle. This contains protein fibers…

Q: Where would you expect to find the greatest concentration of calcium in resting skeletal muscle ?

A: The human and other vertebrates contain three important muscle types, such as skeletal muscle,…

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: Define what the NMJ is and why it's important for muscle contraction. Explain in short the process…

A: Muscle contraction refers to the activation of muscle fibers that results in the generation of…

Q: Explain what is meant by the term excitation-contraction coupling.

A: Contraction can be defined as the process in which there is a shortening of the muscles and there is…

Q: What is the optimum muscle activity to undertake for muscular hypertrophy? Explain deeply

A: Muscle hypertrophy is increase in the size mass of muscle due to its excessive constant use.Muscular…

Q: one of the early symptoms of calcium deficiency is muscle cramps. explain why by outlining through a…

A: Muscle contraction occurs when sarcomeres shorten, as thick and thin filaments slide past each…

Q: Discuss the similarities and differences by which Ca2+ activity is involved in initiating muscle…

A: "Muscles" perform various functions as movement, which is the fundamental purpose of muscles is to…

Q: Muscle fatigue occurs because of..  A relative deficit of ATP  Excessive accumulation of lactic…

A: In fermentation the incomplete oxidation of Glucose is achieved under anaerobic conditions.

Q: Electrical stimulation of skeletal muscle at 5Hz results in a single muscle twitch. Define the…

A: Tetanus is also called by other names such as tetanic contraction, physiologic tetanus and tetanized…

Q: Explain the types of movements facilitated by slow oxidative,fast oxidative, and fast glycolytic…

A: A skeletal muscle is made up of multiple bundles of muscle fascicles of muscle cells known as muscle…

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.