Arthropod muscle fibers typically do not generate action potentials. Using your knowledge of their innervation, explain how their contractile elements are activated in a rapid and coordinated fashion.

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: Skeletal muscle cell(key terms: striated, contracting proteins, contractions, nucleus location) One…

A: muscles are the tissues which helps in movement and locomotion . they  contract and relax based on…

Q: A mutation in troponin that increased its affinity for its ligand would lead to

A: Troponin protein helps to make muscle in rest Condition with the help of tropomyosin protein

Q: Actin is sometimes called the "thick" filament. It splits ATP and is responsible for the "power…

A: The movements of different body parts are attributed to the systemic contraction and relaxation of…

Q: A skeletal muscle can often maintain a moderate level of active tension for long periods of time,…

A: A neuromuscular junction also called the myoneural junction is a chemical synapse between the motor…

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: Skeletal muscle cell(key terms: striated, contracting proteins, contractions, nucleus location) This…

A: Skeletal muscle cells are the cells that help us move and are compartmentalized in the body into…

Q: Explain the following two statements: Muscles can only actively contract; muscle fibers lengthen…

A: The statements "muscles can only actively contract" and "muscle fibers lengthen passively" are…

Q: A muscle cell dies, so that there is no ATP left in the sarcoplasm.  However, there is lots of Ca2+…

A: Rigor mortis is the stiffening of a dead body after hours of death. The word translates into…

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: In your own words describe how acetylcholine ,calcium,and ATP are involved in the process of muscle…

A: Muscle contraction is a process where tension-generating sites in the muscles fibers are activated…

Q: An unexpected discovery from studies of ameboid movement is that the same proteins found in the…

A: A crucial characteristic of animals is movement. Animal movement takes place in various forms in…

Q: How does the activation of vertebrate skeletal muscle differ from the activation of arthropod muscle…

A: Arthropods are lower animals and their complexity is not profound as compare to the higher animals.…

Q: In cardiac muscle, which ion serves both to depolarize the cells and as the essential link to…

A: correct amswer = b-Ca+ The shape of voltage-gated calcium channels changes as a muscle cell is…

Q: Discuss the following statement: “The basal lam-ina of muscle fibers serves as a molecular bulletin…

A: Muscle fibres are the contractile cells which are present in the muscles. These are responsible for…

Q: Muscle spindles :-a- are found in all skeletal musclesb- are found only in large skeletal musclesc-…

A: Muscle spindles are sensory receptors that regulate the contraction of muscles by detecting change…

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

A: Skeletal muscles are voluntarily controlled.

Q: An important difference between smooth muscle and skeletal or cardiac muscle is that it's…

A: Muscle is a soft tissue that are found in body which consists of protein filaments like action and…

Q: Put these events that occur in skeletal muscle in the correct chronological sequence: 1. Activation…

A: The membrane potential on the T-tubule membrane is sensed by a protein called the dihydropyridine…

Q: How are motor neurons involved in muscle contractions? Select all that apply. The release of calcium…

A: It is a neuron whose cell body is located in the motor cortex, brainstem or the spinal cord and…

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 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: Describe in details the biochemical and mechanochemical series of events that enables motor neurons…

A: Muscle contraction means activation of tension-generating sites within our muscle cells and the…

Q: Compare and contrast the connective tissue types of loose, cartilage, dense, bone, and blood.

A: As its name suggests, connective tissue connects other tissues in the body by supporting and tying…

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: Fill in the blank using information available from the diagram above: With every action potential…

A: Various steps during the contraction of a muscle fiber include- - Arrival of a nerve impulse to a…

Q: v a two-state model of a muscle sarcomere - representing relaxed and contracted forms. are your…

A: Muscle fibre consists of A and I bands. These bands are formed due to the regular parallel and…

Q: Which of the following step(s) about the excitation of skeletal muscle is/are incorrect?   1.…

A: Muscle contraction is an example of a complex biological process. The excitation of skeletal muscle…

Q: Which of the following is NOT true of fast oxidative skeletal muscle fibers? All of the above…

A: Introduction: Muscular fibres are cells found in muscle tissue that are designed specifically for…

Q: Skeletal muscle has several distinct fiber types. Type I is used primarily for aerobic activity,…

A: Skeletal muscle is one of three major muscle sorts, the others being cardiac muscle and smooth…

Q: You can choose one or more than one option   About human skeletal muscle contraction, what are the…

A: Actins are the functional unit of muscles. The movement of muscles and their actions are based on…

Q: Which of the following are aspects of the structure of skeletal muscle? Select all that apply.…

A: Our muscular system is made up of muscle tissues that are usually three types, skeletal muscles,…

Q: Contractile muscle cells cannot be created in culture.     True     False

A: Contractile muscle cell present in body as a skeletal muscle, smooth muscle and heart muscles. The…

Q: Acetylcholine molecules are actively transported from the axon to their receptors on the muscle…

A: The neuromuscular junctions are also referred to as motor end-plates. These are defined as the…

Q: Muscle fiber contraction and nerve impulse conduction are similar in that both are response.

A: We can say that Muscle fiber contraction takes place when a muscle fiber is signaled by the brain…

Q: Which of the following statements are true? (choose all that apply) The Z-disc is found in the…

A: The unit of the muscle is known as sarcomere that shows massive molecular events during muscle…

Q: Smooth muscle has actin/myosin, why is it not striated? (consider what striation can provided)

A: Muscles are specialized tissues in the body that have the ability to contract and relax, allowing…

Q: In what ways does the neural control of smooth muscle activity differ from that of skeletal muscle

A: Skeletal muscle and smooth muscle are two types of muscles in the body with distinct roles and…

Q: Compared to skeletal muscle, smooth muscle None of the choices are correct Has equal thick and thin…

A: Similar to skeletal muscle, smooth muscle's main job is to contract. To produce movement, however,…

Q: Put these events that occur in skeletal muscle in the correct chronological sequence: 1. Opening of…

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

Q: Skeletal muscle has several distinct fiber types. Type I is used primarily for aerobic activity,…

A: The skeletal muscle is a type of muscle that has striation, tubular structure, and multiple nuclei.…

Q: Place the following steps in the sliding filament theory of muscle cell contraction in the correct…

A: Sliding filament theory of muscle cell contraction :  A neurotransmitter is released into the…

Q: You know from experience that skeletal muscle tires quite quickly, especially if there is not enough…

A: Paramyosin is one of the muscle proteins in the invertebrates. Like myosin it helps in the muscle…