Explain how skeletal muscle movement is controlled in the knee-jerk reflex (only on local level).

Q: What are Hhe Sequence of events Which lead to Skeletal Muscle contraction? (Starting with…

A: The mechanism of contraction of skeletal muscle was best explained through sliding filament theory.…

Q: Briefly explain how does cross-bridge formation affect muscle force.

A: During muscle contraction, a force is generated in the muscle. This is termed the muscle force. This…

Q: Assuming that the mass (weight) of these three different muscles is the same, WHICH most power, for…

A: Understanding Muscle powerA vital component of human biomechanics, Muscular power generation is…

Q: Name at least two distinguishing histological characteristics of smooth muscle as seen in a…

A: Smooth muscle, also called involuntary muscle, muscle that shows no cross stripes under microscopic…

Q: Outline the major neural adaptations a muscle undergoes to gain strength in the absence of muscle…

A: Ans. Muscles are specialized tissues in the human body that have the unique ability to contract and…

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: subtractive technique that uses nerve stimulation at two points and subtracting the difference…

A: Nerve impulse  conduction is a complex phenomena and it starts at the point of stimulation which is…

Q: Identify the steps that show how an action potentialproduced in the motor end-plate of the…

A: The muscular system comprises three major types of muscle cells - smooth muscle, cardiac muscle, and…

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: Explain the phases of a twitch contraction.

A: The contraction generated by one action potential is termed a muscle twitch.

Q: Name the stages of a muscle twitch in order

A: Muscle twitches are involuntary contractions of the muscle fibers. Nerves control these muscle…

Q: List the three typical stages of a muscle twitch, as seen in amyogram.

A: Myogram is a graphic representation of the phenomena of muscular contractions.

Q: Mention the two primary skeletal muscle proteins, as well as their subdivisions.

A:

Q: Describe the functions of gamma motor neurons and explain why they are stimulated at the same time…

A: The gamma motor neurons innervate the muscle spindle at every finish. they permit contraction of the…

Q: What is the approximate amplitude in mV of the twitch in recording B? Be careful and note the…

A: Introduction  The amplitude is typically calculated from peak to peak. A high-frequency response is…

Q: b) Table 2. Contraction in mm of smooth muscle by an agonist in thepresenceof…

A: We need to plot the agonist concentration on the x-axis and the % most extreme impact on the y-axis…

Q: Predict the consequence if presynaptic action potentials in an axonrelease insufficient…

A: Acetylcholine is an organic chemical that functions in the brain and body of many types of animals…

Q: Briefly describe why contraction of the muscle cell is called “sliding filament theory” (what is…

A: During skeletal muscle contraction, a motor neuron stimulates the skeletal muscle fibers. The…

Q: Describe the differences in action between bilateral andunilateral contraction of the splenius…

A: The splenius capitis is a broad, straplike muscle in the posterior of the neck ,  plucks on the root…

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: Describe a motor unit and how motor unit numberaffects muscle control.

A: Skeletal muscles are striated muscles of the body that are voluntary in action. These muscles are…

Q: Explain why the ratio of motor neurons to skeletal muscle fibers is greater in muscles that control…

A: A motor neuron is a neuron whose cell body is situated in the motor cortex, brainstem or the spinal…

Q: What type of control is this muscle under?

A: The muscular system is made up of special types of cells known as muscle fibers. The main function…

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: 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: 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: Explain the movement of ions into, out of, and within the muscle fber after Acetylcholine (ACh)…

A: The sarcolemma is the plasma membrane of the muscle cell that is surrounded by a basement membrane…

Q: Define the three classes of motor units and their role in muscle innervation

A: A motor unit is the basic functional unit of the muscular system. It consists of a motor neuron and…

Q: Draw the entire pathway for skeletal muscle action from the spinal cord until the end of the…

A: Both neurons and skeletal muscle cells are electrically excitable, indicating that they are able to…

Q: What differences would you expect to see between amotor unit where muscular strength is more…

A: Motoneuron is interpreted as a motor unit and relatedwith muscle fibres, are the essential…

Q: Explain how a slight (but smooth) contraction differs from a vigorous contraction of the same…

A: A unit that comprises of all the muscle fibers which are supplied by a motor neuron is called a…

Q: Explain the intracellular mechansim of smooth muscle relaxation of agaonist such as mepyrimine and…

A: There are a few important points : Skeletal muscles will be attached to bones by tendons composed…

Q: explain what a motor unit is and how it relates to musclecontraction;

A: Muscle is a soft tissue of the body that carries out contraction and relaxation and helps in…