How does the sarcoplasmic reticulum know when to release Calcium ions instead of continuously pump them into itself?

Q: Differentiate between an isotonic contraction and isometric contraction?

A: There are three types of muscle contraction: concentric, isometric, and eccentric. However, in…

Q: When an individual sarcomere undergo contraction, which of the following happens? H band and I band…

A: A sarcomere is the basic contractile unit of muscle fiber. Each sarcomere is composed of two main…

Q: Which of the following statements about the Ca2+ release channels in the sarcoplasmic reticulum is…

A: The right answer is option b) They are one-tenth the size of the voltage-gated Ca 2+channels. The…

Q: How do the muscular and skeletal systems allow for movement?

A: The musculoskeletal system is responsible for body movement, stability, and support. It is composed…

Q: Each sarcomere contains two sets of thin filaments. What are they? What is their function?

A: The soft tissue-like structure found in the majority of the animals including human beings is known…

Q: What is migrating myoelectrical complex (MMC)?

A: At fasten time, The contraction of muscle in stomach and in small intestine to clean the residual of…

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: Which region or organelle—cytosol, mitochondrion, or SR—contains the highest concentration of…

A: In a resting skeletal muscle cell, low amounts of calcium ions are present in the cytosol. The…

Q: Explain the physical relationship between the sarcoplasmicreticulum and the transverse tubules.

A: The body movements such as walking, jogging and talking requires muscle movements. Muscles uses the…

Q: How does the neuromuscular junction illustrate the general principle of physiology that the…

A: The synaptic connection between the muscle and the terminal end of a motor neuron is called the…

Q: Nervous stimulation of musclesa. occurs at a neuromuscular junction.b. results in an action…

A: Answer is d.)  All of these Correct.

Q: How is an aponeurosis differ from a tendon structurally?

A: Both aponeurosis and tendons are made up of fibrous connective tissues and connect skeletal muscles…

Q: How is the motor end plate diff erent from other parts of thesarcolemma?

A: Sarcolemma is the outer membrane of the muscle Fibre it acts like the plasma membrane and provide…

Q: Where are ligaments present in body?

A: Ligaments are fibrous connective tissues and they are needed by the body for providing the…

Q: If you introduced a chemical into a muscle fiber that blocked the voltage-gated calcium channels in…

A: The muscles are the soft tissues found in the animals. They are made up of special types of…

Q: Distinguish between Transverse tubules and sarcoplasmic reticulum?

A: Anatomy is the branch of biology that deals with the study of the structure of organisms and their…

Q: Compare the characteristics of skeletal and smoothmuscle cell contractions.

A: Ans: Skeletal muscle: The skeletal muscle is the form of striated muscle tissue and is one of the…

Q: What is special about a muscle cell does it possess any unique qualities or organelles?

A: Muscles are derived from the mesodermal layer of germ cells through myogenesis. Three types of…

Q: Which type of muscular tissue has the highest capacity for regeneration?

A: Muscle regeneration is the process of repairing and regenerating damaged tissue fibers. There are…

Q: What are T tubules and the sarcoplasmic reticulum?

A: Tubules are the anatomical structure made up of a minute tubes.

Q: If a drug caused a sudden release of large amounts of calcium in skeletal muscle, from which…

A: Increases in intracellular calcium arises through either calcium influx across the plasma membrane…

Q: Is actin is present in thin filament?

A: The muscles are the components of the body that enable locomotion. The nervous system regulates the…

Q: how does The reabsorption of calcium ions into the sarcoplasmic reticulum by active transport…

A: Calcium ion channels triggers the contraction through the reactions of regulatory proteins and these…

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 commits a cell to become muscle cell?

A:

Q: What are sarcomeres?

A: Myofibrils are composed of bundles of protein filaments known as myofilaments.

Q: What happens if calcium ions are not transported back to the sarcoplasmic reticulum

A: Neural signal on reaching neuromuscular junction release a neurotransmitter named acetylcholine.…

Q: What visible features of the neuromuscular junction (NMJ) muscle tissue indicate that it is skeletal…

A: There are three muscle types, namely, smooth muscle, cardiac muscle, and skeletal muscle. The…

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

A:

Q: Why is it important that skeletal muscle tissues work voluntarily and smooth and cardiac muscle…

A: Skeletal muscle tissues are the tissues are made up of cells that are striated. They are under our…

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: How do muscle cells remain differentiated as muscle cells?

A: Muscle cells are formed when the fusion and subsequently, the elongation of a number of precursor…

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: A new experimental drug is tested in muscle fibers and it is concluded that it blocks the calcium…

A: The muscle movement is achieved by the actin and myosin interaction in the sarcoma of the muscles.…

Q: What are the cartilage cells that arise from perichondrial fibroblast known as?

A: A resilient and smooth elastic tissue that serves the function of covering and padding the long…

Q: How does exercise influence the number of Glut transporters on the sarcolemma?

A: Glucose transporters are a diverse group of membrane proteins that facilitate glucose transport…

Q: What body tissue contains a very hard matrix and attaches to muscles for movement?

A: Tissues are groups of cells that have a similar structure and act together to perform a specific…

Q: Name three functions of articular cartilage.

A: Articular cartilage is a specialized characterized to bear the large compressive joint loads and…

Q: What is the difference between Light and Dark bands (of the sarcomere)?

A: The skeletal muscle fibers are long and cylindrical. They appear multinucleate. The basic unit of…

Q: While the sarcoplasmic reticulum of muscle was first described by nineteenth-century microscopists,…

A: The structure of the sarcoplasmic reticulum is a little different from the normal endoplasmic…

Q: What factors determine tendon strength and compliance?

A: Similar to a rope, a tendon is a strong, flexible tissue cord. Tendons are fibrous bands/layers of…

Q: Calcium is released from the sarcoplasmic reticulum following death. Without available ATP, rigor…

A: Muscles are required in breathing, talking, running, walking, and anybody's movement. Actin and…

Q: Why is it advantageous to have a highly folded sarcolemma at the motor end plate?

A: Neuromuscular junction is area or junction or connection between the end of the motor nerve plate…

Q: What is the name of the connective tissue that binds several muscle fibres into a bundle or…

A: Connective tissue is the tissue that connects, separates and supports all other types of tissues in…

Q: Place the following gross anatomic and microscopic anatomic structures in order from largest to…

A: The cells are the primary unit of life. The cells collectively form tissues. The tissues with the…