A muscle gets longer during this type of contraction  Concentric Contraction Cool Down Cycle  Dynamic  Eccentric Contraction

Q: Without ATP, relaxed muscle cannot contract and a contracted muscle cannot relax. Explain why.

A: The actin and myosin filaments are linked with several types of cell movements. The myosin converts…

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: Note the color of each three types of muscle fiber: slow twitch, fast twitch oxidative and fast…

A: Slow twitch muscle fibers:  Resistant to fatigue  For sustained,smaller movements and control of…

Q: On a muscle twitch recording, label the latent period, period of contraction, and period of…

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

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: Name the types of muscle contraction and briefly explain each.

A: The muscular system comprises of skeletal muscles, smooth muscles and tendons. This system plays an…

Q: Describe the important steps in muscle contraction.

A: A repeated binding of the thick filament to the thin filament causes it to slide over the thin…

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: 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: Discuss the relationship between force and speed of movement during a muscular contraction.

A: Muscles respond to stimulus with a simple twitch. After perceiving the stimulus, there is a brief…

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: Using the tension graph, explain why skeletal muscle can exhibit tetany (sustained contraction) but…

A: Physiologic tetanus refers to sustained muscle contraction, which occurs due to the generation of…

Q: Describe the neural control of skeletal muscle contraction.

A: Muscle is a type of soft tissue that is located in most animals. The cells consist of protein…

Q: Explain the role of ATP in muscle contraction and muscle relaxation.

A: ATP or Adenosine triphosphate is an important and integral factor for muscle contraction and…

Q: Define sliding filament theory of muscle contraction.

A: Muscle contraction is the mechanism of generation of tension in the muscle fibers. The contraction…

Q: Explain the length-tension relationship in skeletal muscle contraction.

A: Tension in muscles is composed of the forces generated by many cross-bridge formations. It is the…

Q: Describe the process of skeletal muscle contraction, beginning with an action potential in a motor…

A: Skeletal muscles are voluntarily controlled.

Q: List the four primary signal transduction pathways in skeletal muscle.

A: Signal transduction is defined as the ability of a cell to change behaviour in response to a…

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: Any stimulus above a maximal stimulus will elicit

A: Any stimulus above a maximal stimulus will elicit the same maximal response. Therefore, OPTION 4 -…

Q: Label different areas of an individual muscle unit known as a sarcomere below: Actin A Band Mline Z…

A: The sarcomere is the contraction unit in the skeletal muscles that are under the control of motor…

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: A smooth, sustained contraction from rapid stimulation of skeletal muscle fibers is called

A: TISSUE: These tissues differ from others in that they have the ability to contract and relax, which…

Q: The ability of a muscle to generate tension immediately after stimulation is dependent on: a. myosin…

A: Muscle contraction is the enactment of tension-creating sites inside muscle strands. In physiology,…

Q: Which of the following can respond to increased stimulation with a graded response: a) motoraxon…

A:

Q: Identtidy which among the list represents the hierarchy of muscle structure from the largest unit to…

A: Muscles are connected to bones by means of tendons. They contract to produce movement and thus help…

Q: Identify the ways that increased IP3 can cause contraction.  Identify the ways that increased cAMP…

A: 1.  The contraction of the smooth muscle is generated due to the production of several…

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: Sketch a myogram of a single muscular twitch, and identify the latent period, period of contraction,…

A: A muscle is composed of a group of muscle fibers, and the plasma membrane of the muscle fiber is…

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: From the following choices, choose the THREE, that would result in prevention of muscle contraction…

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

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: "When a muscle develops increased tension, but does not shorten, it is said to exhibit" isotonic…

A: Muscle contraction It is defined as the tightening, shortening, or lengthening of muscles during the…

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

A: Prolonged physical activity or intense, intermittent exercise can result in the glycogen stores in…

Q: Describe the chain reaction of muscle relaxation

A: Muscles are the tissues that show contraction, relaxation and stretching activities and allow…

Q: Explain in detail: What does the ‘sliding filament model of muscle contraction’ discuss or explain?…

A: Sliding filament theory of muscle contraction was given by Huxley.  The theory states that two…

Q: In sustained, moderate exercise, skeletal muscle is predominantly using ______________ as its energy…

A: Introduction  Locomotion is the key to animals as they are motile and can move from one place to…

Q: According to the size principle, which type of muscle fibers are recruited last during a muscle…

A: Size principle or Henneman's size principle was given by Elwood Henneman which demonstrates the…

Q: Give an example of what types of activities promote each of the three types of muscle fiber: slow…

A: Twitch muscles are the muscles of skeletal system. It helps in providing support and movement. There…

Q: What does constant stimulation of a muscle fiber cause? O Decreased tension Constant tension…

A: The impulse from a connected neuron stimulates the muscle cells. Muscles are contractile tissue that…

Q: Fill in steps for mechanism of muscle contraction:

A: Step 1: COCKED POSITION:- At rest, myosin heads are bound to adenosine diphosphate and are said to…

Q: Describe the events of muscle cell contraction

A: The muscle cell contraction is an energy-dependent process. It requires calcium, ATP, and ATPase…

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.