A difference between marathon runners and sprinters is ______.     sprinters perform better in activities that require slow, steady muscle activity     sprinters have a high proportion of muscle fibers that require oxygen to make ATP     marathon runners have more fast-twitch muscle fibers in their leg muscles     marathon runners have more slow-twitch fibers in their leg muscles

Q: 16. When muscle contract slowly and last longer, we are talking about: * Skeletal muscle Smooth…

A: Muscle contraction is a process that occurs when tension-generating regions within muscle cells are…

Q: How could domestic dogs get train to gain or born naturally muscular looking dog? Why not domestic…

A: Training of Pet animals needs special caye and attention. Also there is a lot of struggle and…

Q: Part 1 of 1- Question 1 of 1 During the actin-myosin ATP cycle, if there is no action potential on…

A: The phenomenon in physiology which involves generating tension at specific sites of the muscle 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: Elite sprinters have a high concentration of muscle fibers with the fastest cross-bridge cycling and…

A: Different kinds of muscles are present in the body, which help in locomotion and movement. These…

Q: Antigarvity muscles maintain stretch reflex for prolonged periods withoutfatigue, because :-a- they…

A: The stretch reflex is a muscle contraction in response to stretching within the muscle. The major…

Q: motor neuron to the sarcolemma of the skeletal muscle fiber). Practice by drawing in circled numbers…

A: There are a few important points that should be kept in mind : In nerve and muscles cell, membrane…

Q: Which numbers demonstrate calcium induced calcium release? 8, 9 and 10 O 8 and 9 Calcium induced…

A: Calcium regulates different cellular processes and it is considered one of the most versatile…

Q: Why does force of contraction becomes greater as you deliver stimuli of greater frequencies? What…

A: The muscular system is the organ system in the body with the basic units as muscle fibers. There are…

Q: How does Botox decrease muscle tone? Inhibits acetylcholinesterase O Prevents the release of ACh…

A: The transmission of nerve impulse from one neuron to the next neuron occurs through the synapse.…

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: In the numbered list below, what are they in order from largest to smallest? 1. Myofilaments 2.…

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

Q: Why a sprinter experiances muscle fatigue sooner than a marathon runner

A: Let's understand some terms which will be required in understanding the concept of answer: A…

Q: Muscles with pacemakers are unique in that they have __.     motor neurons in the brain and spinal…

A: Muscles need innervation to work—and even to keep up muscle tone, staying away from atrophy. In the…

Q: 2 When a skeletal muscle contracts, repeated, very rapid stimuli delivered to the muscle before the…

A: Introduction: Skeletal muscle is the most prevalent of the three kinds of muscle in vertebrates. It…

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: How does botox decrease muscle tone? inhibits acetylcholinesterase prevents the release of ACh…

A: Muscle is a soft tissue found in most animals. Muscle cells contain protein filaments of actin and…

Q: Both skeletal and (contractile) heart muscle cells ____.   A Have unstable resting membrane…

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

Q: Fill in the blanks: Resistance-type activities will likely rely on _____ energy sources, whereas…

A: Exercise or any form of physical activity is essential for keeping the body healthy and maintaining…

Q: Muscle with a reduced blood supply and low numbers of mitochondria is likely Fast, with strong…

A: Muscles These are soft tissues that help us in running, jumping, support, heat generation, and blood…

Q: Muscle contraction incorrect order Calcium allows myosin to bind to the actin. A message travels…

A: Note:  the question is attempted to write the correct order of muscle contraction. Muscle is the…

Q: When the second ATP is regenerated from ADP during the contraction cycle, what happens?  1.myosin…

A: * Muscle contraction occurs when thin actin and thick myosin filaments slides each other which is…

Q: During muscle contraction, some energy is supplied from creatine phosphate. Which of the following…

A: Muscle contraction occurs when tension-generating sites within muscle cells are activated.

Q: true or false ____34. Gap junctions between cells do not allow excitation to spread among adjacent…

A: Introduction :-  Gap junctions , as their name are intercellular channels that allows direct cell to…

Q: Chapter 13, Level 2: Which of the following is true of a muscle spindle? O it is a region where…

A: Introduction: The skeletal muscle fibers are composed of several long and thin cells referred to as…

Q: an isotonic concentric contraction, muscle length shortens muscle tension exceeds the force of the…

A: Concentric and eccentric isotonic contractions are the two forms of isotonic contractions. The…

Q: These agents affect rate of contraction

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Q: Which of the following statements is true?     Fast glycolytic fibers have a small diameter.…

A: Fast glycolytic Fibers:  Fast glycolytic fibers, also known as type IIb fibers, are a type of muscle…

Q: Sebaceous glands is a type of sweat gland? are associated with hair follicles may function in…

A: 1. associated with hair follicles Sebaceous glands are associated with hair follicles and secrete…

Q: Smooth muscle

A: Smooth muscle:-  Is a type of tissue found in the wall of hollow organs such as the intestine,uterus…

Q: You find yourself running away from a pack of zombies in the snow. These zombies aren't very fast…

A: Running mostly works muscles in the lower body like the glutes, hamstrings, and quads. Running also…

Q: What difference of person to have Muscular body compare to very muscular and extremely? Like three…

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Q: Classify characteristics of skeletal muscle energy metabolism by dragging each statement to its…

A: Oxidative phosphorylation This pathway requires oxygen Produces a significant fraction of ATP…

Q: During the cross bridge cycle, what is the first event that occurs after ATP binds myosin? the power…

A: Introduction : ATPs are high-energy molecules that store the majority of the chemical energy in the…

Q: Need help with both please #3 and #7

A: The muscles has an unique characteristics of contraction and relaxation. In the muscle fibre…

Q: The depletion of ATP in muscle cells causes ____. myosin heads to remain bound to actin…

A: answer:1 The depletion of ATP in muscle cells causes calcium ions to be released from the…

Q: After the power-stroke, the myosin heads must bind ______ in order to release actin. The muscles…

A: Muscle cells are highly specialized for a single task, contraction, and it is this specialization in…

Q: The role of creatine phosphate in muscle cells is to: provide energy for muscles during extended…

A: Creatine phosphate serves as an “energy buffer” in muscle it is a high-energy, phosphorylated,…

Q: How quickly would skeletal muscle fibers fatigue if they were unable to use oxygen to make ATP?…

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

Q: Cardiomyocytes differ from skeletal muscle cells in that cardiomyocytes ______.   A "do not have…

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

Q: 5

A: We can say that We know that Sarcomeres are the fundamental functional units of the muscle cell,…

Q: This thick filament motor protein composed of 6 polypeptide chains uses ATP hydrolysis to interact…

A: Skeletal muscles are attached with the skeleton. Muscle is made up of contractile, structural and…

Q: Poor blood circulation will likely reduce the contraction power of a person's  myosin  actin…

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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.