What events occur during the relaxation of the musclefiber? What is the role of ATP?

Q: How does the arrangement of myofilaments produce the characteristic striations of skeletal muscle…

A: Skeletal muscle is one of three major muscle types, the others being cardiac muscle and smooth…

Q: Identify the major events that occur during skeletal musclefiber contraction.

A: The skeleton is composed of bones, cartilages, tendons, and ligaments. The body movement is…

Q: What are three functions of ATP in muscle contraction?

A: The muscle tissue present in the human body is primarily responsible for the movement in the body.…

Q: Describe the events that result in the relaxation of skeletal musclefibers?

A: A smooth, sustained contraction from the rapid stimulation of skeletal muscle fibers is called…

Q: How do calcium ionsparticipate in musclecontraction? Why do bothmuscle contraction andmuscle…

A: Muscle contraction is the process of activating tension generating sites in the muscle fibers.…

Q: What is the difference between a single cross-bridge power stroke and a single twitch of a skeletal…

A: An action potential is formulated as an immediate, fast, transitory, and producing modification of…

Q: Identify three processes in a muscle twitch that require ATP?

A: When one muscle fiber contracts in response to a command (stimulus) from the nervous system, it is…

Q: What fuel molecules are metabolized to produce ATP duringskeletal muscle activity?

A: Four major types of tissues in human body are – muscle, nervous, epithelial and connective. Three…

Q: What role does calcium have in muscle contraction?

A: The signal of muscle contraction initiates from the central nervous system. During the process of…

Q: what is a myofibril

A: To describe: To describe myofibril and its structure.

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

A: With alternative arrangements of light and dark band, skeletal muscles are striated muscles. They…

Q: What evidence supports a sliding filament-cross-bridge mechanism of contraction in smooth muscle?,…

A: The evidance for sliding filament cross bridge mechanism  is inferential  and derived from…

Q: What factors determine the duration of an isotonic twitch in skeletal muscle? An isometric twitch?

A: To a single action potential, twitch is the mechanical response of a muscle fiber. Before the…

Q: distinguish between two physiological types of musclefibers, and explain their functional roles;

A: Muscle fiber referred to as the muscle cells present within the muscle. They are principally…

Q: What is Whole-Muscle Contraction?

A: If the muscle pressure changes however the muscle length stays as before, a muscle contraction is…

Q: How does the shortening of sarcomeres explain musclecontraction?

A: A sarcomere is referred to as the basic structural unit within the muscle fiber of skeletal muscle,…

Q: When is ATP used in the muscle contraction process (called ATP hydrolysis)?

A: The muscle contains muscle fiber which is filled with the sarcomere present in the stranded form.…

Q: What are the three sources of ATP produced during muscle contraction?

A: Muscle contraction is the response of muscle towards nerve impulse. When stimulus is received,…

Q: explain the relationship between sarcomere lenth and muscle tension?

A: Thick myosin filaments and thin actin filaments glide past one another to cause muscle contraction.…

Q: why does a rapid series of muscle twitches yield a stronger overall contraction than a single…

A: Muscle contraction that results from a single action potential is called a twitch. When there is a…

Q: How are myofilaments and sarcomeres of myofibrils related?

A: Muscle is a soft connective tissue found in most animals. A myocyte or a muscle cell is the type of…

Q: What type of muscle contraction occurs when cross bridge cycling is occurring but the whole muscle…

A: Skeletal muscles are the major contributors to the muscular system in humans and are the major means…

Q: What is the basic mechanism of contraction at the level of myofilaments?

A: Introduction: Myofilaments are myofibrils' filaments made up of actin and myosin. The arrangement of…

Q: What is the energy utilization involved in causing a muscle to contract ?

A: Muscle contraction occurs when the actin and myosin filaments slide past each other. This process is…

Q: What is the difference between striated myofilament contraction and smooth myofilament contraction

A: Muscle fibers are specifically designed to contract. Muscles enable activities such as walking, as…

Q: What is a continuous contractions with no evidence of relaxation?

A: If the stimuli are applied for a long time, Then there would be continuous contractions with no…