Each of the pairs of phrases below describe steps during skeletal muscie contraction. The 2nd phrase should take place after the 1st phrase. Which of the pairs of phrases is out of order? muscle cell action potential leads to neurotransmitter release motor neuron action potential leads to muscle cell action potential sarcolemma depolarization leads to an increase in cytosolic calcium rise in cytosolic calcium leads to cross bridge cycle

Q: Which of the following summarizes the role of acetylcholinesterase in muscle contraction? O opens…

A: Acetylcholinesterase (AChE) is an enzyme that breaks down the neurotransmitter acetylcholine in the…

Q: n order to study and understand muscle diseases, one needs to have a good understanding of normal…

A: Muscles contract in a repeated pattern of binding and releasing between the two thin and thick…

Q: which decreases cytoplasmic calcium ion concentration The relaxation of skeletal muscle relies on…

A:

Q: Muscle contraction can occur when: is it 1,2,3,4? A bands lengthen. myosin filaments shorten.…

A: Muscle is a specialized contractile tissue that is a distinguishing characteristic of animals.…

Q: In the sliding filament model of muscle contraction, I bands contain     sacrcomeres.     thin…

A: The cytoskeletal proteins including actin filament or microfilament, microtubules and intermediate…

Q: Explain the structure and organization of muscle fascicles and the role in generating force include…

A: Bones, ligaments, muscles, tendons, etc. constitute the musculoskeletal system. The body movement is…

Q: depolarization of the transverse tubules (T-tubules) promote

A: Every cell in the body has a cell membrane which separate it from the external environment of the…

Q: The power stroke in muscle contraction is the: Group of answer choices product of force and velocity…

A: The cells that make up muscle have the unique capacity to shorten or contract to cause movement of…

Q: Looking at this diagram explain the order of size dependent recruitment of motor units during muscle…

A: Car rental refers to the performance of additional vehicles to achieve increased contraction…

Q: A motor unit is site of  interaction between a motor neuron and the muscle fiber that it is…

A: Neurons are the specialized cells of the nervous system and are the basic functional unit of the…

Q: What is associated with the formation of a cross-bridge in skeletal muscle? ADP release from myosin…

A: Any movement requires the contraction of skeletal muscles. Muscles contain actin and myosin…

Q: What best explains the inability to fully contract a muscle when the muscle is first shortened prior…

A: Muscle contains muscle fiber cells which are specialized for contraction. The muscle movement is a…

Q: Which protein is responsible for blocking the myosin binding site to actin, while the muscle is at…

A: Myosin and actin slides onto each and plays a major role in muscle contraction..

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: 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: the given below option what step causes a sarcomere to shorten? cross-bridge formation  calcium…

A: The component of a muscle fiber that contracts is called a sarcomere. Actin and myosin make up the…

Q: Calcium storing membranous network in muscle fibers Transmit the action potential to the interior of…

A: The motor neuron's axon receives an action potential.On the axon, the action potential opens…

Q: According to the sliding filament mechanism of skeletal muscle contraction, during contraction: The…

A: The myofibrils of skeletal muscles contain alternatingly dark and light bands. The dark band is…

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: describe the events that lead to muscle contraction starting at the level of the neuromuscular…

A: Muscle contraction occurs when these are initiated by a nerve signal. This is triggered by…

Q: Myosin filaments iterdigitate with actin filaments in order to bring about muscle contraction.…

A: The process of muscle contraction is necessary for the normal physical activities of the body. Force…

Q: the process of muscle contraction, which of the following steps immediately precedes the influx of…

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

Q: skeletal muscles:       0.Troponin has a strong affinity              for Ca2+ Creation of…

A: Muscles There are three type of muscles cell found in human Cardiac muscle cells  Smooth muscle…

Q: Skeletal muscle will be released in its contracted (rigor) state when: Group of answer choices ATP…

A: Please note that the correct statement for the question should be "Skeletal muscle will be released…

Q: distance runners. All of tl igher concentration of gl

A: Elite sprinters make use of type II fibers more than other muscle fibers and are fast glycolytic…

Q: I= band at the time of relaxation H= zone at the time of relaxation Sacomere at the time of…

A: During the muscle cell contraction, the sarcomere must shorten. However, thick and thin filaments…

Q: complete tetanus    Has increased muscle length with no change in tension.   eccentric…

A: The contraction of the muscle generates a force called as muscle tension. There is also generation…

Q: Match the word in the word box with the following definition this type of stretching involves…

A: Stretching is a form of activity necessary for body movement. This has various phases and forms. It…

Q: Why are calcium ions so important for the muscle contraction process

A: Muscle contraction is a process carried out by the interaction of the actin and myosin proteins. It…

Q: Put the following statments describing the skeletal muscle contraction pathway in the correct order:…

A: The signal for the muscle contraction is sent to the motor neuron from the brain or the spinal cord.…

Q: Which of the following correctly states the importance of an action potential to muscle contration?…

A: Muscle contraction helps in the movement of muscles. It causes the muscle fibers to contract to…

Q: Fast twitch muscle fibers have lower force production than slow twitch.     True   False

A: Introduction:- The muscular system is an organ system that connects bones, tendons, and heart…

Q: When discussing the hierarchy of skeletal muscle organization, the is the Highest level of…

A: Humans consists of various systems one such system is the muscular system that consists of muscle in…

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: Match the statement on the left with the best response on the right. Breaking the high energy bond…

A: Introduction :  A synapse is a small space that represents the junction between two axon terminals…

Q: As sarcomere shortening progresses during muscle contraction, which structure gets progressively…

A: A muscle contraction:-It can be defined as an increase in the tension of the muscle.-It can also be…

Q: All the following are necessary for a skeletal muscle cell to full relax, except one. Which answer…

A: Muscle is a delicate tissue found in many creatures. Muscle cells contain protein fibers of actin…

Q: Why does a skeletal muscle cell generate the same amount of tension with each single stimulus? O…

A: Neural control initiates the formation of actin and myosin cross bridges, leading to the sarcomere…

Q: Tetanus is a phenomenon where muscle fibers are continuously contracted. What best explains this?…

A: Tetanus is a sustained muscle contraction evoked when the motor nerve that innervates a skeletal…

Q: Fast oxidative glycolytic fibers in skeletal muscle are used Select one: O a. intermittently, for…

A: "Muscles" perform various functions as movement, which is the fundamental purpose of muscles is to…

Q: Which of the following summarizes the role of calcium in muscle contraction? opens the binding sites…

A: The actin's active-binding sites are made visible by calcium ions attaching to the protein complex…

Q: Humming birds and rattlesnakes can contract and relax skeletal muscle very quickly, i.e. in 10-20…

A: In all vertebrates three major types of muscles are present. These are- cardiac muscles, smooth…

Q: 2 T tubule 3. ATP 4. lateral sacs of the sarcoplasmic (c) supplies energy for the reticulum 5.…

A: Muscle contraction begins when the impulse arrives at a particular muscle which is going to be…

Q: The following are the basic steps of a muscle contraction:               I.  Neurotransmitters bind…

A: Muscle tissue is responsible for movement. There are found three types of muscles: Skeletal,…

Q: Which statement or statements describe why depletion of ATP after death leads to rigor mortis?

A: Rigor mortis is the third phase of death. It is one of the unmistakable indications of death,…

Q: How does the cross-bridge result in thin filaments sliding over thick for contraction? Use key…

A: As Cross-bridge is formed myosin head is locked tightly on to an actin filament. Binding of ATP to…