Does your data indicate a relationship between resting tonus and clench strength? Describe the relationship.

Q: a)How does the EMG activity change when the velocity of the contraction is increased? b)What does…

A: EMG records the electrical activity of the muscles.  The muscle consists of muscle fibres which…

Q: Define acetylcholine

A: The term 'acetylcholine' is used to denote a chemical molecule that functions as an important…

Q: Why does Na+ diffuse into the muscle cell after the AChreceptor is activated?

A: Acetylcholine is a principal neurotransmitter that helps in the conduction of nerve impulses within…

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: a.  Define the all-or-none principle.  b.  The same student remarked that at 180 mV stimulus, it is…

A: Lifting a mass is done by a motor unit, motor unit has a motor neuron and the skeletal muscle fibers…

Q: Describe how the autonomic release of noradrenaline onto vascular smooth muscle cells that…

A: The autonomic nervous system releases noradrenaline (also known as norepinephrine) into vascular…

Q: Explain the events of excitation-contraction coupling.

A: Excitation-contraction coupling (ECC) is a mechanism that connects the plasma membrane stimulation…

Q: should muscles fatigue faster at higher or lower frequencies?

A: Muscle fatigue is defined as a decrease in maximal force or power production in response to…

Q: Explain in detail Muscarinic receptors in regards to the hisamine agonist.  How do they cause…

A: Muscarinic receptors These acetylcholine receptors are found in the cell membranes of certain…

Q: Give an account of signalling at a neuromuscular junction through the nicotinic acetylcholine…

A: The nicotinic acetylcholine receptor is a transmembrane allosteric protein that opens an inherent…

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: Eric’s aerobic capacity was recently found to be 81 mL/kg/min by measuring his VO2max on a…

A: Oxygen is a crucial factor for energy production in the body. VO2 (max) is the maximum rate (V) of…

Q: Explain the function of the interneuronal networks in walking?

A: Inter neurons are neurons that are found solely within the central nervous system. It is found…

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: Muscle Contraction In an experiment, the strength of a neural stimulus and the resulting muscle…

A: In the physiology of the nervous system, neurons need to be stimulated in order to conduct impulses…

Q: Q2) What is the motor innervation of occipitalis muscle and the digastric muscle?

A: Occipitalis is a thin, quadrilateral muscle that covers the part of the skull. It is a part of the…

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 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: How can a number of smooth muscle cells be influenced by neurotransmitters from a single neuron?

A: Chemical messengers in the body are known as neurotransmitters. It is their responsibility to send…

Q: Based on the graph, describe the relationship (or lack thereof) between the maximum EMG activity and…

A: Electromyography (EMG) measures muscle response or electrical activity in response to a stimulation…

Q: What does rhe binding of ACh to nicotinic receptors of skeletal muscle cells directly cause?…

A: Muscle contraction is the activation of tension-generating sites within muscle fibers. In…

Q: Define maximal threshold. What would happen to contraction if stimulus is increased beyond the…

A: The threshold stimulus is the minimum strength required for a stimulus to start a muscular…

Q: How is the prolonged refractory period generated incardiac muscle? What is the advantage of a…

A: The absolute refractory period is a kind of duration of time that occurs after the starting of the…

Q: Why does muscle CAP Amp for both the normal Ringer's solution and Ringer's solution with Neostigmine…

A: Introduction :- A stimulus is any physical or chemical signal that elicits a response from an…

Q: List the effects of Electrical Forces on Ion Movement?

A: Neuron function is dependent on ion flow into and out of the cell. Lipid molecules create two layers…

Q: ells have an) recеptor at IS ais0 Dadrenergic, muscarinic D adrenergic, nicotinic O cholinergic,…

A: Muscarinic receptors are G-coupled protein receptors. On the other hand nicotinic receptors are able…

Q: How is resting membrane potential established in a neuron and muscle cell?

A: The neuron of the nervous system and muscle cells all can maintain a resting membrane potential.…

Q: Compare the (i) contraction, (ii) excitation-contraction coupling in smooth muscle, cardiac and…

A: Introduction The muscular system is an organ system consisting of skeletal, smooth, and cardiac…

Q: High blood K+ concentrations cause depolarization of the restingmembrane potential. Predict and…

A: Potassium is an important electrolyte needed for various functions in the body like muscle movement…

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

A: Knee jerk reflex is also called as the patellar reflex. It causes the sudden kicking movement of the…

Q: re these True or False? Receptors on the post-synaptic cell membrane that bind the acetylcholine…

A: When two molecules of acetylcholine bind a nicotinic Acetylcholine receptor, a conformational change…

Q: Sección Release of inhibitory neurotransmitter Decreased concentration of leaky sodium channels in…

A: Resting membrane potential is the characteristic of each and every cell but neurons are special in a…

Q: In muscles, acetylcholine is released by the _________________________and opens specific channels…

A: Answer : Motor  neuron , Sodium Ion

Q: Neuromuscular Junction: -Activation of nicotinic ACh receptors in the motor end plate results in…

A: The junction between a motor neuron and a muscle fiber by which the nerve can communicate with…

Q: How does varying the frequency effect contraction force? Which interval caused the greatest…

A: * contractions is of three types mainly Isotonic  Eccentric Concentric *Concentric contractions…