The power stroke in muscle contraction is the: Group of answer choices product of force and velocity in muscle contraction transmission of the action potential down the neuron rotation of the myosin head after the cross bridge forms transmission of the action potential down the neuron

Q: Which of the following alters the force of skeletal muscle contraction?  the frequency of…

A: Skeletal muscle contraction refers to the process, that when a motor neuron signals a skeletal…

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: 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: You are working with a patient who has limitations in ankle dorsiflexion. You determine this is a…

A: In the 1940s, PNF (Proprioceptive neuromuscular facilitation) was developed by Dr. Herman Kabat for…

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: The endplate potential decreases with distance because

A: The end plate potential is a potential that propagates to the neighbouring patch of muscle fibre…

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: 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: What is the function of calcium in muscle contractions? to bind to troponin and change its…

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

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: * :Muscle troponin protein provides.22 Contraction Elasticity Extensibility None of the above

A: Troponins are a group of proteins that can be found in striated muscle. Its levels are low in the…

Q: During cross bridge cycling in skeletal muscle, force is created by the power stroke of the: actin…

A: The cross bridge cycling exhibits the shortening of muscles because of the movement of the…

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: The motor unit firing patterns are measured in a human hand muscle using an electromyography (EMG)…

A: The EMG pattern observed as the individual voluntarily attempts to make a low-level force of…

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: 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: Select ALL that would INCREASE the strength of a muscle contraction: recruiting more slow-twitch…

A: Skeletal muscle cells are long and cylindrical, has voluntary control in action that is in under our…

Q: The following is an oscilloscope tracing displaying the muscle twitch of an intact, viable frog…

A: Muscle contraction is a major phenomenon associated with the functioning of the myofibril occurring…

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: Number 5 in Graph B represents iand is the result of i The statement above is best completed by the…

A: Need to find what the label 5 represents in the graph given.

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: Each of the pairs of phrases below describe steps during skeletal muscie contraction. The 2nd phrase…

A: Muscle tissue is a type of tissue which contain actin , Troponin and myosin proteins so as to allow…

Q: Which one of the following statements is the best description of a motor unit?     A single…

A: Motor unit is defined as a single motor neuron and all of the muscle fibers it innervates.

Q: When electrically stimulating a skeletal muscle and measuring the force of muscle contraction, which…

A: A skeletal muscle needs an action potential to be trigger contraction of the muscle fibers. The…

Q: Which of the following is associated with smooth muscle contraction? Troponin as…

A: Muscle cells are specific for contraction. It allows for motions and facilitates bodily processes…

Q: An INCREASE in has no direct effect on increasing tension during skeletal muscle contraction.…

A: The muscles which are attached to the bones, can contract voluntarily and are mainly involved in…

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: Which among the four choices below is NOT a typically way to measure muscle strength? Maximum force…

A: The maximum force a muscle or a muscle group may exert during a contraction is known as muscular…

Q: active muscle tension begins at approximately one hundred percent of resting length for a muscle…

A: Muscle tension is the condition where muscles of the body remain semi-contracted for a lengthy…

Q: The ________ opposes or resist, the action  caused by the prime mover Antagonist  Prime mover…

A: Muscles contract to produce movements and motion. Muscle always works in pair.

Q: All of the following are characteristic of delayed onset muscle soreness (DOMS) EXCEPT: It is more…

A: Delayed onset muscle soreness is a clinical condition in which there is a pain in muscle within the…

Q: Which of the following sites is not a site of muscle attachment? Greater trochanter, lesser…

A: The skeletal muscles attach to the bones or muscles at various sites called origin and insertions.

Q: If Ca2+ pumps of the sarcoplasmic reticula fail to function, what will happen to the tension…

A: Muscle is a soft tissue like structure which is primarily responsible for the movement in the body.…

Q: Describe the three steps (in detail) and the regions where these steps occur required for a skeletal…

A:

Q: The following is an oscilloscope tracing displaying the muscle twitch of an intact, viable frog…

A: The phenomenon shown in the graph is wave summation because the second wave has more amplitude as…

Q: Which of the following is thought to be cause of  muscular fatigue? Decrease level of lactate…

A: Muscle fatigue is the decrease in capacity of a muscle to create power. It very well may be a…

Q: Muscle spindle structures consist of:     Extrafusal muscle fibers and gamma motor neurons…

A: Proprioception is the knowledge of position and movement of self. It can also be compared to sixth…

Q: The type of muscle contraction where the muscle contracts but exhibits no change in length is called

A: The muscle contraction is the classic example of actin-myocin interaction that are present within…

Q: When utilizing microprocessor technology for testing muscle strength, you are typically looking at…

A: Answer - Isometric

Q: When compared to normal muscle, the response of the denervated muscle to electrical stimulation…

A: Normal muscle fibers appear polygonal in shape whereas denervated muscle appears angular and…

Q: Which type of muscle fiber arrangement is most appropriate for the shoulder muscle that leads to…

A: Introduction: The muscle is a contractile tissue responsible for the movements of the body. Muscles…

Q: As an action potential moves along the sarcolemma, the brief opening of voltage-gated Na+ channels…

A: In the resting state, the inside i.e., sarcoplasm contains high concentration of K+ ions and…

Q: Smooth muscle contraction is controlled by releasing neurotransmitters trom: Presynaptic cleft O…

A: Smooth muscle contraction is controlled by releasing neurotransmitters from:

Q: Asap choose your answer please

A: The digestive system consists of a collection of organs that help in the digestion of food…