With age, the collagen-containing connective tissue coverings of skeletal muscles increase and the number of muscle fibers decreases. Is meat from an older or a younger animal more tender? Explain.

Q: Contrast the role of Ca2+in the contraction of a skeletalmuscle fiber and a smooth muscle cell.

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

Q: If you will be observing cross sections of a striated muscle, how would you differentiate a skeletal…

A: Skeletal muscle: The longitudinal section shows the presence of large, elongated, and…

Q: Muscle relaxation occurs when ________. a. calcium ions are actively transported out of the…

A: The human body is a well built machine in which all the organs coordinate together to make it work.…

Q: Do both skeletal and cardiac muscle have a striated appearance? Explain?

A: Muscles are the soft tissue that has filaments to change its shape and length. The filaments present…

Q: Without ATP, relaxed muscle cannot contract and a contracted muscle cannot relax. Explain why.

A: The actin and myosin filaments are linked with several types of cell movements. The myosin converts…

Q: Which muscle type has the most elaborate connective tissue wrappings? Please explain. What do…

A: Muscles cells make up the muscle tissue.

Q: How and why does an ATP solution makes the muscle fiber contract and makes it length shorter? How…

A: Few important points to be kept in mind: Actin filament is made up of G-actins and it is act as…

Q: During evolution, skeletal muscle became adapted to functional de-mands ranging from sudden,…

A: The skeletal muscles of vertebrates are composed of different types of fibers. This includes slow…

Q: The opposite muscle reactions occur in response to heat. Explain how?

A: Muscles tissue is the soft tissue that helps the animal body to contract and relax in the way the…

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: How do muscle cells remain differentiated as muscle cells

A: Muscles are the contractile tissues which bring about movement. Muscle cell responsible for our…

Q: What are some of the properties of smooth muscle?

A: Smooth muscles are found in the walls of the hollow organs and the passage ways. It consists of…

Q: Muscle cells have a number of anchor membrane?

A: A muscle cell is characterized by a long cell that can shorten its length through a sequence of…

Q: Which of the following statements is True?a. Tendons contract using the sliding filament…

A: The muscular-skeletal system made up of tendons, ligaments, bones, muscles of various types. The…

Q: In a muscle, muscle fibers are arranged in bundles that are wrapped in a thick layer of connective…

A: Tissue is the next level organization of the cells. There are 4 different types of tissue are…

Q: During contraction, where does the calcium that binds to troponin come from

A: Muscles are made up of two main protein filaments namely, a thick filament that is made up of a…

Q: What do smooth muscle plasma membranes contain?

A: BASIC INFORMATION  MUSCLE It is a type of soft tissue which are found in most of the animals. The…

Q: Suppose a person had an unusual mutation in the troponin protein of his skeletal muscles, such that…

A: The muscular system is a system of muscles where muscles are connected to bones and also to envelope…

Q: What event causes a troponin-tropomyosin complex to regain its original shape in muscle relaxation?…

A: Muscle contraction is the activation and formation of tension sites with muscle fibres, while muscle…

Q: Which types of muscle have t-tubules, sarcoplasmic reticulum?

A: t- tubules or transverse tubules are basically the extensions of cell membrane. They are formed from…

Q: Why does Skeletal muscle cells contain more mitochondria than other organelles?

A: A skeletal muscle cell is a multinucleate syncytium that forms by the fusion of hundreds of myoblast…

Q: A skeletal muscle can be stimulated, under laboratory conditions, with a supramaximal stimulus. Is…

A: As the nervous system produces electrical stimuli called an action potential, it passes through a…

Q: What are the classes and characteristics of epithelia?

A: As per the guidelines, we are supposed to answer only one question. Kindly repost the other question…

Q: Why take magnesium when cramping a muscle

A: A muscle cramp is an involuntarily and forcibly contracted muscle that does not relax. These are…

Q: Unlike skeletal muscle smooth muscle Mayer spontaneously contract when it is. What feature of smooth…

A: Smooth muscle is a non-striated muscle, divided into two groups; single unit and multiunit smooth…

Q: After a vigorous exercise, you may experience cramps in your leg muscles. Why does this happen?

A: Exercise is any bodily activity that enhances or maintains physical fitness and overall health and…

Q: Explain the organization of muscle tissue

A: Muscle tissue is soft tissue. It gives rise to the muscle's capability to contract. The muscle…

Q: Which of the following is NOT a stock form of the key molecules for energy generation in muscle? A.…

A: Adenosine triphosphate (ATP) is used to generate energy in muscles. A significant amount of ATP is…

Q: List the structures of skeletal muscle from largest to smallest: muscle fiber, muscle, and fascicle.

A: The three types of muscle present in the body are skeletal muscle, smooth muscle and Cardiac muscle.…

Q: Why is the innervation of single-unit smooth muscle often restricted to only a few cells in the…

A: Smooth muscle (also known as visceral muscle because of where it is found) is one of the three major…

Q: Muscles that maintain posture are composed primarily of what type of skeletal muscle fibers?

A: Skeletal muscle fibre basically refers to the multiple bundles of the fibres that are joined…

Q: All of the following characteristics apply to skeletal muscle except

A: Option (d) is right answer.  Because they do not contain intercalated discs.

Q: What are two separate steps or phases of muscle contraction that rely on calcium for proper…

A: Muscle contraction is the tightening and shortening of the muscle. Muscle contraction is an increase…

Q: Which of the following are aspects of the structure of skeletal muscle? Select all that apply.…

A: Our muscular system is made up of muscle tissues that are usually three types, skeletal muscles,…

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: One of the major questions of regeneration is whether the cells keep a “memory” of what they had…

A: Muscles are specialised bodily parts that allow animals to move or locomote. Muscle tissues make up…

Q: Under a light microscope, would you see the muscle fibers get narrower, or the striations get…

A: Muscle fibers are cylindrical in shape and they consists of more than one nucleus. They are composed…

Q: What event causes a troponin-tropomyosin complex to regain its original shape in muscle relaxation?…

A: Muscle contraction is the action of activation and generation of tension sites with muscle fibers…

Q: Name the three layers of connective tissue membranes in muscles and mention to their locations.

A: Skeletal muscles can contract and cause movement. Each skeletal muscle is composed of various…

Q: What is myoglobin? Whatis the function of thismolecule in the muscle tissue?

A: In your heart and skeletal muscles, myoglobin is contained. There, oxygen that muscle cells use for…

Q: Characteristics of smooth muscles fibers are: spindle shaped, unbranched, unstriated, uninucleate…

A: Human body is composed of various kinds of tissues. Each tissue is made up of a set of cells…

Q: What will happen to human body if tendons are not present?

A: Tendons are the tough bands made up of fibrous connective tissue and provide a connection between…

Q: Disorders of collagen are characterized by deterioration of connective tissues. Why would such…

A: Connective tissue is a type of animal tissue , which develops from the mesoderm . The connective…

Q: What are the consequences if tendons were dense elastic connective tissue instead of dense…

A: Dense elastic connective tissue contains a large amount of elastic fibers while the dense…

Q: What will happen to the muscle if ATP was added, then salt? Explain

A: Muscles are the tissues that consists of longitudinal cells that helps in the movement in the body.…

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.