14. View the images below and circle the image which shows the sarc tension – and WHY Explanation:

Q: During the cross-bridge cycle of muscle contraction, what is the role of troponin? it changes shape…

A: The biological cells possess three movement types. These are muscular, amoeboid, and ciliary. The…

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: What part of the sarcolemma contains acetylcholine receptors? A) motor end plate B) any part of the…

A: Skeletal muscles are muscles which are under voluntary control. They are also known as striated…

Q: In relaxed muscle, the myosin-binding site on adin is blocked by ?

A: Step 1 Contractile elements of muscle fibre are myofibrils. They are made up of contractile units…

Q: Hill's equation gives a relation between muscle contraction rates νν and muscle tension TT…

A: We have to rewrite the equation in a form to show that T is dependent on v including T0, alpha and…

Q: O People with high blood pressure O People with migraines O People with obstructive lung disease O…

A: 1. In the given question people with obstructive lung diseases should avoid the beta-blockers and in…

Q: If an athlete increases their strength capability by 15% and their body mass by 20%, their ability…

A: Muscle contraction Muscle contraction is defined as the shortening or stretching of muscles while…

Q: movement of sodium ions into the muscle cell at the nueromuscular junction causes wha

A: Neuromuscular Junction (NMJ) is the junction between the terminal branch of the nerve fiber and the…

Q: Select the correct statements regarding myosin-mediated contraction in the sarcomere. Ca2+ is…

A: Actin and myosin work together to produce muscle contractions and, therefore, movement.

Q: Considering these events, what is the right sequence in muscle contraction? i. Ca2+ released from…

A: Muscles are the connective tissues that are involved in the movement by their contraction and…

Q: The I band of a sarcomere is widest when a muscle is relaxed true or false

A: Muscular system is a type of body system which is involved in contraction and relaxation of muscles…

Q: Question 47 (1 point) Which of the following options describes the speed at which force may be…

A: Type 1 muscles fibers are present for long duration of contractile activities.and found in the…

Q: Discuss how calcium is a signaling molecule that causes the contraction of the sarcomere.  This…

A: In an eccentric contraction of the skeletal muscle, the muscle lengthens under tension because there…

Q: Motor neuron 4 Muscle fiber nucleus Myofibril of muscle fiber Figure 10.15. Details of the…

A: A neuromuscular junction is the region of chemical interaction between the axon terminal of neurons…

Q: QUESTION 17 What type of muscle would we find as the predominant muscle type in marathon runners?…

A: The objective of the question is to identify the predominant muscle type in marathon runners.

Q: Part E- Identification of the Events of a Muscle Contraction Drag and drop the correct terms in the…

A: Muscles are the soft tissues that cover the entire body system It is mainly composed of two proteins…

Q: How does the nervous system control skeletal muscle? Outlining the sequence of events at the somatic…

A: Introduction: The myofibrils are made of parallel bundles of protein microfilaments referred to as…

Q: atent phase V [ Choose ] Active return of Ca2+ into SR Ca2+ released from SR Power stroke of…

A: Alpha motor neurons are the neurons which  innervate the skeletal muscle fibers. On entering a…

Q: Question 2 of 16 The relatively light portion of the A band of skeletal muscle Select the correct…

A: Skeletal muscle- Skeletal muscle forms about 40-50% of body mass and is responsible for movement and…

Q: What is NOT related to temporal summation for muscle contraction? residual Ca2+ in the muscle…

A: Temporal summation of muscle contraction can be described as a sensory summation involving the…

Q: Your answer MUST answer all the aspects of the question - write your answer clearly & use…

A: There are three major types of muscle present in our body - cardiac muscle, smooth muscle, and…

Q: Choose the correct answer: Myofibrillar protein content from total muscle protein is Select one: 5%…

A: Myofibrillar proteins include thick and thin filaments. Thick filament is mainly composed of myosin…

Q: Question 6 of 16 Which of the following is mismatched with its function in muscle contraction?…

A: Introduction: Muscle contraction is defined as the change in length of the muscle , it can include…

Q: QUESTION 6 Identify the specific kind of muscle in the image. cardiac muscle smooth muscle O…

A: Introduction Muscle fibers are made up of single muscle cells. They help to maintain physical forces…

Q: What is the correct order that a motor nerve stimulation encounters structures in triggering a…

A: Muscular system is a type of body system which is involved in Contraction and relaxation, thus…

Q: Question 4 of 16 The physiologic event that takes place at the sarcolemma of a skeletal muscle cell…

A: The skeletal muscles are under the control of central nervous system that regulates the contraction…

Q: An individual "step" by a myosin head in one cycle pulls the thin filament about 15 nm. How many…

A: To find the number of steps each actin filament/fibre must make in one contraction, you need the…

Q: Select the best answer or answers from the choices given: The function of the T tubules in muscle…

A: Muscle contraction can be defined as the process in which the length of the muscles decreases and…

Q: What do you mean by myosin myofilaments?

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

Q: Tropmyosin and Troponin are called the regulatory proteins in muscle contraction. Describe the…

A: Each of the muscle fibers are made up of even smaller fibers called as myofibrils. These myofibrils…

Q: QUESTION 15 What section of a sarcomere does not shorten during muscle contraction? Al Al Z disk…

A: INTRODUCTION Sarcomere It is a part of a striated muscle, which is a functional unit and works in…

Q: When you extend your elbow to put down a heavy object (e.g. placing a heavy textbook on a table),…

A: Eccentric

Q: QUESTION 9 Which of the following is true about skeletal, smooth and cardiac muscle? OA. They are…

A: The question is asking us to identify the common characteristic among skeletal, smooth, and cardiac…

Q: QUESTION 8 How does the nervous system grade the force of muscle contraction? O a. Only by…

A: Introduction: The nervous system is primarily responsible for information transmission via…

Q: nat is the name of the muscle indicated by the arrow, and what is its insert to

A: In the back muscles we can find: Lattisimus dorsi Trapezius Levator scapulae Rhomboids

Q: Which muscle fiber type will fatigue faster? O fast-twitch fibers O slow-twitch fibers

A: Muscles constitute a set of specialized tissue which are crucial in movement of the body. Along with…

Q: Questions no 28 asap

A: We can say that The basic unit of muscle contraction present between two Z lines on the surface of…

Q: Question one: Which of the following is TRUE concerning motor units?

A: Muscles are involved in movement and locomotion. Muscles originate from the mesoderm.  Agglutination…

Q: Indicate whether the sentence is True or False During the cross-bridge cycle, ATP binding to myosin…

A: Repeated relaxation and contractions in Skeletal muscles are responsible for the movement and…

Q: During which step of a muscle contraction cycle is ATP needed? when myosin head does a power stroke…

A: Muscle contraction occurs when tension is generated in the muscle fibers. It occurs due to the…

Q: Question 1. Describe an action potential in a muscle fiber in detail, know the changes in voltage…

A: An action potential is a brief electrical signal that travels along the membrane of a neuron or…

Q: A transmembrane protein that can change conformation in response to an lonic charge/current and…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: a muscle cell structural element that consist primarily of an actin filament is a/an______

A: A Muscle cell has actin filaments which formed structural element of muscle.

Q: The size principle requires that the muscle fibers controlled by a single motor unit are all the…

A: Introduction: Muscles are soft structures found in all animals. Muscle cells are made up of protein…

Q: Question 2 and 3a

A: Since you have asked multiple question, we will solve the first question for you.  Anatomy is the…

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.