The following are the basic steps of a muscle contraction:               I.  Neurotransmitters bind to receptors               II.  Myosin pulls on actin               III. Ca2+ binds to troponin               IV.  Myosin binds to actin               V.  Myosin releases actin               VI.  Ca2+ is released/unbound Which of the following puts the steps above in the correct order?

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: Which of the following does not occur during muscle contraction? Release of calcium into sarcoplasm…

A: Muscle contraction occurs when the action potential from the motor neuron passes the signal to a…

Q: Which of the following choices best summarizes excitation-contraction coupling? A series of events…

A: Excitation contraction coupling is the process by which an electrical stimulus triggers the release…

Q: [ANIMAL PHYSIOLOGY] When an action potential from a motor neuron arrives at the neuromuscular…

A: ACTION POTENTIAL It is a rapid rise and subsequent fall in voltage or membrane potential across a…

Q: During a single muscle twitch, the sarcomeres within a muscle contract maximally. How can you…

A: A contraction of muscle fibers generate when an action potential pass down the motor neurons. A…

Q: Which of the following skeletal muscle fiber types would have the fastest contractions and the…

A: Muscles are composed of a group of muscle fibers. Fibers of skeletal muscles are classified into…

Q: Which of the following factors can contribute to a contracted muscle returning to its resting…

A: Step 1 Muscles show three unique properties- contractibility, excitability, and conductivity. Muscle…

Q: The higher the frequency of action potentials, the higher amount of force produced in a muscle.…

A: An action potential is a change in the membrane potential of the neuron. This is caused due to…

Q: What is the first and most direct energy source for muscle con￾traction? a. glucose b. ATP c.…

A: Answer- The muscle contraction is the crutial step in the movement and locomotion.

Q: Which of the following does NOT occur in or immediately prior to a muscle contraction? action…

A: NOTE- As per our honor code, we are authorized to answer only three multiple questions at a moment.…

Q: How can I describe skeletal muscle contraction using the words "upper motor neuron" and "lower motor…

A: Skeletal muscles represent one of the three types of muscles including smooth muscle and cardiac…

Q: The force of muscle contraction may be altered by increasing/decreasing the stimulus interval…

A: Muscle Contraction: It is the activation of tension-generating sites within muscle cells.

Q: Summation in a single muscle fibre means that Select one: a. the fibre increases the frequency of…

A: Introduction Muscle contraction:- It is the activation of tension-generating sites within muscle…

Q: What causes a muscle cell to contract? A) ATP forms a bridge binding actin to myosin. B) Calcium…

A: The muscular system is made up of muscle tissue and is responsible for functions such as maintenance…

Q: Which of the following choices is CORRECT? A Myofibrils extend the length of a muscle fibre B.…

A: In muscles the sarcomer is termed as the fundamental unit. The sarcomer helps in the contraction.…

Q: Which of the following does NOT contribute to muscle fatigue? A. K+ accumulation B. ADP and…

A: Introduction Muscle fatigue is a condition in which muscles loses the ability to perform overtime.…

Q: List TWO (2) differences between smooth muscle contraction and skeletal muscle contraction.

A: Muscle cells are intended to produce power and movement. There are three kinds of mammalian muscles…

Q: The following list of events take place during a muscle contraction.  Place the events in…

A: Muscle contraction is tension generating site activation within the muscle fibers. The muscle…

Q: In an isometric contraction the muscle develops tension but does not - exhibit elasticity does not…

A: * there are three types of muscle contractions present  are:  Concentric  Eccentric Isometric…

Q: Which of the following is arranged in order from smallest tolargest?a. Motor unit < sarcomere…

A: When a nerve impulse travel to the muscle contraction that is an action potential causes the muscles…

Q: The series-elastic component of muscle contraction is responsible for a.increased muscle shortening…

A: Muscle is a delicate tissue found in many creatures, and is one of the four fundamental creature…

Q: explain muscle contraction in several distinct steps starting the release of acetylcholine junction

A: Muscle contraction occurs when the tension generating regions are activated within the muscle…

Q: Graded muscle contractions ________. depend on activation of more and more motor units depend…

A: Muscle cells are made up of two key protein filaments called actin and myosin. These proteins are…

Q: what are the events that initiate muscle contraction in order?  start with the neurotransmitter…

A: A Muscle Contraction Is Triggered When an Action Potential Travels Along the Nerves to the Muscles.

Q: Put the following events of excitation-contraction coupling in the order in which they occur. 1.…

A: The term excitation-contraction coupling (ECC), first coined by Alecxander sandow in 1952, describes…

Q: After nervous stimulation stops, what prevents acetylcholine in the synaptic cleft from continuing…

A: Hello! Since you have posted multiple questions, we are answering only first questions. If you need…

Q: In the process of muscle contraction, which of the following steps immediately comes after the…

A: Muscle contraction can be defined as the activation of tension-generating sites within muscle…

Q: the

A: Muscle contraction:- Is the response  a muscle has to any kind of stimuli where the result is…

Q: ATP is needed during which of the following phases of a muscle twitch? relaxation period latent…

A: A muscle twitch is an uncontrollable contraction of the muscle fibres. Muscle fibres are controlled…

Q: Which of the following statements are true? Multiple Choice Muscles work in antagonistic pairs…

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

Q: The rising phase of a muscle twitch represents ________. the time of relaxation of the muscle…

A: Muscle twitches are involuntary contractions of the muscle fibers. Nerves control these muscle…

Q: Why will an increase in the strength of a stimulus cause an increase in the force of contraction in…

A: Stimulus: A stimulus in physiology is a change in the physical or chemical structure of an…

Q: Arrange the following in statements in the order that they occur during muscle contraction: 1-10…

A: Muscle contraction is the activation of tension-generating sites within muscle fibers. It does not…

Q: How is the list below to be properly put in order to describe a muscular contraction?

A: Muscle contraction can be defined as the activation of tension-generating sites that are present…

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: Which of the following skeletal muscle fiber types would have the fastest contractions and the…

A: Muscles are composed of a group of muscle fibers. Fibers of skeletal muscles are classified into…

Q: why does a rapid series of muscle twitches yield a stronger overall contraction than a single…

A: Muscle contraction that results from a single action potential is called a twitch. When there is a…

Q: A muscle gets longer during this type of contraction  Concentric Contraction Cool Down Cycle…

A: Muscle  It is a bundle of fibrous tissue in human that has an ability to contract, producing…

Q: In a resting (non-contracting) muscle, what is the position of myosin? It is attached to the…

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Q: In the sliding filament theory of contraction, what prevents the filaments from sliding back to…

A: Sliding filament theory of muscle contraction: this theory states that sliding of actin filament…

Q: What is the difference between treppe and tetany? Mark ALL that apply. there is no summation in…

A: Treppe is a muscle contraction in which the graduated series increased in vigorous contractions when…

Q: How do actin and myosin interact in a sarcomere to bring about muscle contraction? What roles do ATP…

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Q: What is the fastest manner in which skeletal muscle  cell produce ATP? Utilization of fatty acids…

A: In movement, organism moves body parts or parts whereas, in locomotion, an organism change its…

Q: All the following are important for smooth muscle contraction EXCEPT? Select one: a. Actin b. Myosin…

A: The mechanism of muscle contraction is based on muscle proteins that slide past each other to…

Q: For each of the following word pairs, write a sentence explaining their roles in muscle contraction.…

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Q: List and describe all of the major events that occur during a muscle contraction starting with the…

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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.