How does the drug cyclobenzaprine work as a muscle relaxant at a cellular level? Which part of the muscle contraction is interrupted by cyclobenzaprine? Is it effective on the muscle itself or active in the central nervous system?

Q: Which of the following summarizes the role of acetylcholinesterase in muscle contraction? O opens…

A: Acetylcholinesterase (AChE) is an enzyme that breaks down the neurotransmitter acetylcholine in the…

Q: requires

A: Answer:- Striated and smooth muscle activation differ because: Let's , elaborate on all the options…

Q: Which of the following alters the force of skeletal muscle contraction?  the frequency of…

A: Skeletal muscle contraction refers to the process, that when a motor neuron signals a skeletal…

Q: You discover a mutant mouse whose skeletal muscles do not work properly.  You remove a piece of…

A: Acetylcholinesterase or acetylhydrolase is a cholinesterase enzyme primarily found at neuromuscular…

Q: depolarization of the transverse tubules (T-tubules) promote

A: Every cell in the body has a cell membrane which separate it from the external environment of the…

Q: Botox  has become popular for reducing wrinkles.  It is a dilute solution of a toxin which inhibits…

A: Botox injections block specific chemical signals from nerves, for the most part signals prompt…

Q: The organization of myosin in smooth and striated muscle:

A: Smooth muscle consists of thick and thin filaments that are not arranged into sarcomere.In skeletal,…

Q: 3) Smooth muscle contraction is regulated by: a) activation (excitation) of myosin. b)…

A: Muscles are of three types: Skeletal muscle  Smooth muscle  Cardiac muscle  Smooth muscle is an…

Q: Motor neurons innervate muscle fibers at specialized synapses called_______ . The release of…

A: In “motor neurons”, the cell bodies are located in the spinal cord, motor cortex, or brainstem. The…

Q: Describe the role of stretch receptors in skeletal muscles?

A: Skeletal muscles are voluntary muscles present in the body that are responsible for causing…

Q: Motor neurons release what type of neurotransmitter onto the motor end plate of skeletal muscles?…

A: Motor neurons of the spinal rope are essential for the central nervous system (CNS) and interface…

Q: The single-fiber twitch experiments shown here were generated by stimulating the muscle cell…

A: When a muscle is triggered by a single vibration, an action potential is generated that causes the…

Q: Why is it important to remove acetylcholine from its binding to acetylcholine receptors once the…

A: Neurotransmitters can serve as chemical messengers for ion channels, neurotransmitter mainly causes…

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: To demonstrate muscle fatigue, a student held an 8 lb dumbbell in her hand and abducted her arm…

A: Ans - the correct answer for the above question is- A) Different motor units were contracting while…

Q: An increase in the cross sectional area of muscle is known as hypertrophy. Hypertrophy allows muscle…

A: The question given is about hypertrophy. Hypertrophy is defined as an increase in tissue mass caused…

Q: How does the AP in the motor neuron cause calcium release in the muscle fiber?

A: Action potential refers to the depolarisation of neuronal membrane which is required for the…

Q: Muscle spindles are the sensory receptors that monitor the length of skeletal muscles. When the…

A: The muscles are involved in movements happening in an organism. These movements can be voluntary or…

Q: How does tetanospasmin cause muscle contraction?

A: The bacterial infection ‘tetanus’ is known to hamper the physiological activity of muscle…

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: Diaphragm Right hypochondriac region Epigastric region Left hypochondriac region Right lumbar Left…

A: There are four quadrants and nine areas in the abdominopelvic cavity. The right upper, right lower,…

Q: How is smooth muscle contraction affected by the drugs called calcium channel blockers?

A: Calcium ions move in and out of the cell with the help of calcium channels that present in cardiac…

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: We control muscle force using motor unit recruitment. When we recruit more motor units, what is…

A: The process of activating different motor units to achieve a specific level and kind of muscular…

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: When an action potential runs down the surface of the sarcolemma, the muscle doesn't immediately…

A: Muscles  play an important part in locomotion and movement. They are derived from mesodermal layer…

Q: A motor unit associated with the stimulation of skeletal muscle is designated as a 1:8 motor unit.…

A: A motor unit is made up of a motor neuron and the skeletal muscle fibres innervated by that motor…

Q: Cardiac and skeletal muscle are both “striated” types of muscle and yet they have very distinct…

A: The skeletal muscles are a part of muscle tissue in the body. They are attached to the bones by the…

Q: Which of these events occurs during the team phase, just when a muscle has been stimulated? a) Ca2…

A: Muscle stimulation The muscle contraction is stimulated by the action potential that traveled along…

Q: and placed in a solution of sodium chloride, potassium chloride, and sodium bicarbonate, will muscle…

A: Muscles contract and relax and thus produce motion. There stimulation needs action potential to be…

Q: First, explain how resting membrane potential is established in terms of ion concentration and…

A: The variation in the electric potential of the interior cellular component and extracellular matrix…

Q: What would happen without input from gamma motor neurons? A) Information about velocity would…

A: Intrafusal fibers are specialized muscle fibers. They are found in the muscle spindles. Muscle…

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: Muscle spindle structures consist of:     Extrafusal muscle fibers and gamma motor neurons…

A: Proprioception is the knowledge of position and movement of self. It can also be compared to sixth…

Q: what role does calcium play in muscle contraction? a) calcium is not involved in skeletal muscle…

A: The musculoskeletal system of the human body provides a frame and shape to the human body. This…

Q: Which of the following are part of the muscle contraction process?(More than one answer may be…

A: Muscle contraction is the basis of all skeletal movements. Skeletal muscles are composed of muscle…

Q: 17) a

A: The motor neurons innervate the skeletal muscle cells. The initiation of the muscle contraction…

Q: When curare, a neuromuscular poison, is dropped onto an isolated muscle-nerve preparation in a…

A: A normal physiology of Neuromuscular junction:nAChR are the type of acetylcholine receptor located…

Q: Acetylcholinesterase is the enzyme that breaks down and inactivates acetylcholine. Some nerve gases…

A: Nerve gas binds to acetylcholinesterase enzyme but only at 1 site. Nerve gas has a phosphorus group…

Q: Which of the following statements is true about the control of muscle glycogen phosphorylase? a) It…

A: Introduction: Glycogen phosphorylase is a key enzyme that takes part in the first step of…

Q: With muscular dystrophy, the membrane of muscle cells is destroyed. Given how muscle cells contract,…

A: Muscular dystrophy disease is comprised of thirty different genetic disorders causing progressive…

Q: Pick the right order for muscle contraction a) ATP attaches to myosin, muscle cell uses calcium,…

A: Within the muscle cell the actin and myosin interaction occurs. The acting is a cytoskeleton protein…