What do you notice is different in the sarcomere of a person with DMD compared to a person without DMD? What role do you think dystrophin plays in this difference?

Q: What channels are open during depolarization of the sarcolemma? What is moving in/out?

A: The cell membrane is an envelope that surrounds the cell. It is a semi-permeable membrane that…

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: What is the meaning of Tardive dyskinesia ?

A: The side effects caused by neuroleptic drugs is referred to as Tardive dyskinesia.

Q: Even though calcium is removed from troponin and tropomyosin, please describe in detail what else…

A: The events that result in the contraction of human muscle fiber starts with the signal by a…

Q: How does the structure of a nerve compare to that of a skeletal muscle? Which of the descriptive…

A: The nerves are an integral component of the PNS (peripheral nervous system) and consist of axon…

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 type of contractions do skeletal muscles do?

A: Note - we answer one question at a time.   The change in the length of a muscle during its…

Q: What is the most dangerous injury that the intracapsular ligaments tend to suffer from? How can it…

A: Intracapsular ligament It is located in a joint within the capsule. Intracapsular ligament of knee…

Q: What is “Tardive dyskinesia” ?

A: Tardive dyskinesia is characterised by involuntary and abnormal movements of the jaw, lips and…

Q: Motor neurons release what type of neurotransmitter onto the motor end plate of skeletal muscles?…

A: Motor neurons of the spinal rope are essential for the central nervous system (CNS) and interface…

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: Briefly discuss the abundance of sarcoplasmic reticulum in skeletal muscle in relation to its…

A: The sarcoplasmic reticulum is the major intracellular organelle for controlling the cytosolic…

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: 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: Describe the location, structure, and function of the sarcoplasmicreticulum in skeletal muscle…

A: Muscles are required in breathing, talking, running, walking, and for any body movements. Actin and…

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: 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: 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: What is different in the sarcomere of a person with DMD compared to a person without DMD?

A: Muscles are the tissues which helps in the locomotion and movement.  There are different types of…

Q: Which muscle filament in skeletal muscle contains the calcium-binding protein? O Thick O Sarcomere O…

A: Skeletal muscles play a huge role in the way our bodies function because, without muscles, our bones…

Q: What change does ACh cause in an ACh receptor? Howdoes this electrically affect the muscle fiber?

A: ACh stand of acetylcholine receptor and it binds to ACh receptor. After binding it open the Na+ gate…

Q: structural organization of muscle fibers makes it possible to produce contractile force

A: Answer: Sarcomere of Muscles fibre or myofibre is the basic contractile unit of skeletal muscle.

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 do you notice is different in the sarcomere of a person with DMD compared to a person without…

A: In skeletal and cardiac muscles, dystrophin is part of a group of proteins that work together to…

Q: Describe the structure of the sarcomere

A: The Sarcomere is a large protein unit that is essential for contraction in the muscle. Both skeletal…

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: Describe the cross-bridge formation and the sliding mechanism during muscle contraction?

A: Cross - Bridge Formation-- Actin and Myosin proteins present muscle fibers play very important role…

Q: What is the fundamental contractile unit of skeletal muscle? b. What are the names of the bands,…

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

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: Which protein has binding sites that the myofilament "head" is able to attach to? Select one: a.…

A: Answer1- d. actin When muscle contracts, the globular heads of the thick myosin filaments attach to…

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: What do you mean by myosin myofilaments?

A: Muscles consist of munerous muscle fibres. Each muscle fibre contains many myofibrils having…

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

A:

Q: - The sacromere is: a- A functional unit of the skeletal muscle b- The area between two intercalated…

A: Muscle cells, commonly known as myocytes, are the cells that makeup muscle tissue. There are three…

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: Acetylcholinesterase is the enzyme that breaks down and inactivates acetylcholine. Some nerve gases…

A: Nerve gas binds to acetylcholinesterase enzyme but only at 1 site. Nerve gas has a phosphorus group…

Q: Very Shortly describe the full process for how nerve signals cause our skeletal muscles to contract…

A: There are three kinds of muscle tissue in the human body and each performs particular tasks 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: Explain why myosin II in a sarcomere can produced force only for that sarcomere contraction and not…

A: SARCOMERE   It is the basic structural and functional unit of muscle tissue. COMPONENTS: Each…

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: Why does Neostigmine cause an increase in the twitch tension when the nerve is stimulated and not…

A: Because neostigmine acts on nerve terminal increasing acetylcholine concentration by inhibiting…

Q: What event occurs immediately before the movement of tropomyosin? Initiation of the power stroke…

A: Skeletal muscles are a special type of muscles made up of contractile tissue. They are a type of…

Q: Mr. White has cerebral palsy and suffers severe muscle spasms as a result of his condition. He is…

A: Muscles are tissues that are capable of contracting and relaxing. Muscle contraction is necessary…

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: What would happen to muscle function if you ingested a toxin that completely inactivated troponin?…

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

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: Calmodulin is found in smooth muscle cells and performs a similar function to troponin in striated…

A: Smooth muscle is found in the walls of hollow organs like your intestines and stomach. They work…