As skeletal muscle contracts, one or more bands of the sarcomere become narrower and disappear, and one or more of them emain the same width. Which bands will change—A, H, or I—and why?

Q: What is the gross anatomical arrangement of a skeletal muscle?

A: An entire skeletal muscle is viewed as an organ of the solid framework. Every organ or muscle…

Q: What prevents cross-bridges from attaching to sites on the thinfilaments in a resting skeletal…

A: Muscles are the tissues able to contract in response to stimuli.

Q: What do you mean by muscle bundles?

A: Muscle is considered as an organ of the muscular system and each muscle comprises of muscle tissue,…

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: What are the difference between red and white muscle?

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

Q: What are the detailed structures of the skeletal muscle tissue? Including Fascicles to Myofibrils…

A: Skeletal muscle is an organ of the muscular system and it is one of the chief muscle types in the…

Q: Name the organization of muscle tissue from largest to the smallest

A: Organization of muscle tissue from larger to the smallest order…

Q: Is the length of muscle contraction at the beginning of tetanic contraction the same or different…

A: A tetanic contraction can be defined as a sustained muscle contraction that evokes when the motor…

Q: What happens to the I band and H zone as muscle contracts? Do the lengths of the thick and thin…

A: Numerous bundles which make up the skeletal muscle are called fascicles and each of these is…

Q: Which type of contraction develops more muscle tension: isotonic or isometric?

A: Muscles are the tissues that can change their length and cause movement of the body parts.

Q: Which of the following is the smallest: muscle fiber, thick filament, or myofibril? Which is…

A: Myofibrils are made up of small structures known as Myofilaments. There are basically two main kinds…

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: Explain how cardiac muscle differs from skeletal muscle in its structure and regulation of…

A: The cardiac muscle is striated similar to skeletal muscle. The sarcomeres of cardiac muscle contract…

Q: Compare the inner layer of smooth muscle with circumferentially running muscle cells,to the outer…

A: Internal soft organs have visceral smooth muscle in their walls (viscera). Muscle cells are joined…

Q: Where are the nuclei of of muscle fibres located?

A: Muscle function: contraction for locomotion and skeletal movement contraction for propulsion…

Q: List three types of muscle?

A: Human muscle: Muscle is an important component of the human body to perform an action. It is…

Q: Describe the gross structure of a skeletal muscle.

A: The muscles with alternate light and dark bands which remain associated with the skeleton and can…

Q: Why does skeletal muscle look striated?

A: Muscle tissue forms the muscles present in the animal body. This tissue provides the ability to…

Q: explain the structure of skeletal muscle, linking the structure to their function as you do this.

A: A skeletal muscle is made up of hundreds or thousands of muscle fibers bundled together and encased…

Q: Characteristics of the Three Types of Skeletal Muscle Fibers?

A: To answer this question we must have knowledge about animal physiology.

Q: How could the nervous system cause a skeletal muscle to produce themost forceful contraction it is…

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

Q: Compare cardiac muscle, single-unit smooth muscle, and multiunit smooth muscle with respect to…

A: The Muscle is a soft tissue that is responsible for producing force and motion facilitated by the…

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: 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: under a microscope, some skeletal muscles appear white and some look red. What type of muscle…

A: Myogenesis is the process of formation of muscles from the mesodermal layer of embryonic germ cells.…

Q: Muscle fibers contain which of the following?

A: Muscles are protein filaments that allows the body to move, speak and chew. They contain…

Q: Sketch the fascicle arrangements that define a fusiform, parallel, convergent, pennate, and circular…

A: Muscle is important component of the skeletal system.muscle consist of outer layer sarcolemma,the…

Q: name the connective tissue layers that surround muscle fibers, muscle fasciculi, and whole muscles.

A: The connective tissues support the organs and provide a framework. It is also responsible for…

Q: If a person exercises to achieve bigger muscles, what effort must be exerted and what actually…

A: Muscle hypertrophy: It refers to the increase in muscle cells due to excessive exercise. During…

Q: How would muscle contractions be affected if skeletalmuscle fibers did not have T-tubules?

A: Muscles:                    In animals, soft tissues found known as muscles. Muscles cells contain…

Q: Which type of myosin is found in contractile bundles?

A:

Q: Which muscle type consists of long, cylindrical, striated fibers with multiple nuclei located at the…

A: Muscles cells are elongated and large in size. So they are called muscle fibres. The movement of…

Q: What are some examples of movement created by the contraction of sarcomeres of the muscle cells?

A: Muscle tissues are of three types: Skeletal muscle, cardiac muscle, and smooth muscle. Each consists…

Q: and voltage-gated channels found?

A: Muscle cells,  are mostly known as myocytes,  they are the cells that make up the muscle tissue.

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 factors are responsible for the amount of tension a skeletal muscle develops?

A: The muscular system, composed of tissues, capable of changing their shape, is responsible for…

Q: What is the correct order of the structures of a muscle?

A: The tissue is the group of cells, that have the same function and structure. Different organs…

Q: What creates the striated appearance of a skeletal muscle cells?

A: Muscle tissue can be divided into three major types as cardiac muscles, smooth muscles, and skeletal…

Q: Regarding the muscles, why electric impulses are important in the contraction mechanisms? Explain.

A: Neuromuscular junction or NMJ is accountable for the transfer of electrical signals from the neurons…

Q: How does the striated structure of skeletal muscle relate to its contractile function?

A: Muscle tissue is categorized into three types, skeletal muscle (aids in voluntary movement), smooth…

Q: If a muscle is contracted and shortening, what happens to the following: (a) width of the A band,…

A: A myofibril has light bands (A-bands or anisotropic bands) and dark bands (I-bands or isotropic…

Q: Which of the following has the thickest layer of muscle? *

A: Answer: BLOOD VESSELS : These are the tubes or vessels in the body which are used to transport the…

Q: What are the five major functions of skeletal muscle?

A: The muscle is the tissue of the body that works as a wellspring of force. The impulse from nerve…

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.