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

Q: Explain the molecular mechanism of muscle contraction.

A: Introduction: The myofibrils are made of parallel bundles of protein microfilaments referred to as…

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: Provide a possible physiological explanation for the differences between muscle fatigue and nerve…

A: The physiological activities in our body teaches us how our body work and how it responds to the…

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: Name three differences between slow-twitch and fast-twitch muscle fibers.

A: A sudden and quick movement of muscles or rather, contraction of muscles is referred to as Twitch.…

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 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: Name the system that provides a ready supply of phosphocreatine to muscle cells and describe where…

A: Phosphocreatine It is also known as creatine phosphate. It is a phosphorylated form of creatine…

Q: Describe the sequence of events by which an action potential in a motor neuron produces an action…

A: Tendons attach skeletal muscles to the bone. Numerous bundles which make up the skeletal muscle are…

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: Define the all-or-none principle.

A: According to All-Or-None principle, When threshold stimulus is applied to a neuron then it will…

Q: phase of muscle contraction in YOUR OWN WORDS.

A: Each of the muscle fibers are made up of even smaller fibers called as myofibrils. These myofibrils…

Q: What is the role of ATP and ATP hydrolysis in the cycle of actin-myosin association and…

A: ATP (adenosine triphosphate) and ATP hydrolysis play crucial roles in the cycle of actin-myosin…

Q: Summation in a single muscle fibre means that Select one: a. the fibre increases the frequency of…

A: Introduction Muscle contraction:- It is the activation of tension-generating sites within muscle…

Q: Explain in detail how the of relaxion towards Smooth muscle contraction is done by the antagonsists…

A: Body organs move mechanically thanks to the process of muscular relaxation and contraction. The…

Q: The flushed appearance of skin is due to the hemoglobin in blood. True False

A: Tissue is a part of structural organization of the body which is formed of various cell . Tissue is…

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: Describe how muscle contraction can resist movement rather than cause movement

A: Muscle contractions allow movements mainly the most common function of muscles. The contractions of…

Q: Smooth muscle cells lack transverse tubules. True or False True False

A: Muscles constitute a set of specialized tissues which play an important role in body movements along…

Q: Using the concept of recruitment, explain how muscle contraction can be graded in its strength

A: Introduction: At the neuromuscular junction, the motor neuron sends signals to muscle fibers. It…

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: In theory, could a muscle cell get away with having only acetylcholine-gated cation channels, which…

A: Voltage-gated ion channels are a crucial component of generating and propagating action potentials…

Q: True or False An organism which has attained homeostasis is at equilibrium with its external…

A: Homeostasis Homeostasis is defined as the ability of an organism to maintain and adjust its internal…

Q: Describe the events by which depolarization of a smooth muscle cell results in contraction and…

A: Smooth muscle is a kind of muscle that is used by various systems to apply pressure on organs and…

Q: Describe the length-tension relationship in skeletal muscle fibers.

A: The skeleton muscle varies in shape, size, and arrangement of fibers. These range from small strands…

Q: Compare the inner layer of smooth muscle with circumferentially running muscle cells,to the outer…

A: Internal soft organs have visceral smooth muscle in their walls (viscera). Muscle cells are joined…

Q: Myoglobin provides muscle fibers with a means of supplying ATP anaerobically. True or False

A: The globin is a globular protein that contains heme group and it plays a vital role in binding and…

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 some of the differences, and similarities if any, of smooth muscle contraction compared to…

A: The organ system that is involved majorly in the movement of the body is known as the muscular…

Q: If a single twitch of a skeletal muscle fiber lasts 40 msec, what action potential stimulation…

A: In human physiology, skeletal muscle is defined as the vital organ of muscular system which is also…

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: 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: distinguish between two physiological types of musclefibers, and explain their functional roles;

A: Muscle fiber referred to as the muscle cells present within the muscle. They are principally…

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: Muscle contraction is not the only process controlled in temperature-regulating reflexes. True or…

A: Muscle contraction is considered as the process, in which tension develops in the site present in…

Q: If ligand-gated K+ channels were to open in an unstimulated muscle fiber,how would this affect the…

A: The ligand-gated channels are those channels that open in response to the ligand which could be…

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: Muscle fibers contain which of the following?

A: Muscles are protein filaments that allows the body to move, speak and chew. They contain…

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: On a microscopic scale, explain how muscle fibers move in order to make a muscle shorter? Explain…

A: The cellular respiration provides energy (ATP) for the muscle contraction and The nervous system…

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: True/False

A: Every living organisms try to maintain a constant homeostatic internal environmental conditions that…

Q: Compare the three muscle fiber types and their influence on contraction

A: The muscular system is made up of specialized tissues called muscle fibers. These muscle fibers…