What stimulates the release of calcium from the SR: Select one: O a. The activation of the sodium- voltage gated channels on the SR O b. The opening of the calcium ligand-gated channels on the SR O c. The action potential O d. The activation of the Calcium pumps

Q: This patient was given potassium ions intravenously and regained normal muscle functioning in a very…

A: Potassium is a mineral, our body cells need this, it regulates our major body parts functions such…

Q: This patient's hypokalemia was due to his profuse sweating the previous day and the subsequent loss…

A: Potassium is a mineral, our body cells need this, it regulates our major body parts functions such…

Q: After the action potential reaches its peak, the potential across the membrane falls toward its…

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Q: The resting membrane potential of a neuron or muscle cell is a. equal to the potassium equilibrium…

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Q: the given below option what step causes a sarcomere to shorten? cross-bridge formation  calcium…

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Q: A graded potential (a) decreases with distance from the point of stimulation. (b) spreads passively…

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Q: What is the function of acetylcholinesterase? O a. to prevent undesired continuous contractions O b.…

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Q: In order to excite a skeletal muscle, the neurotransmitter must bind to: a)calcium channels. b)…

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Q: The neurotransmitter that initiates events leading to skeletal muscle contraction is A. creatine…

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Q: Order the following events of excitation and excitationcontraction coupling. Put 1 by the first…

A: A motor neuron is responsible for the transmission of a stimulus to the muscle tissues. A motor unit…

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Q: In EMG measurement the ground electrode normally attached to: * O Muscle Bell O Muscle Tendon Most…

A: Electromyogram (EMG) is used to record the action potential generated by muscle fibers during the…

Q: The EMG is a recording of: * The action potentials of the motor nerves supplying the muscle fibers.…

A: Introduction: Action potential is a short-lasting event in which the electrical membrane potential…

Q: One neuron and all the skeletal muscle cells it stimulates make up one The position on the muscle…

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A: Calcium channel blockers are used as medications to treat hypertension as they lower blood pressure.…

Q: The greater the influx of calcium into the presynaptic axon terminal, the greater the O magnitude of…

A: An action potential in the presynaptic cell produces an influx of Ca2+which promotes the exocytosis…

Q: Identify the molecule which binds calcium ions after they enter the synaptic bouton via VG Ca++…

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Q: Acetylcholinesterase is an important molecule in the engine end plate to share: a) stimulates…

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Q: What step DIRECTLY causes a sarcomere to shorten? cross- bridge formation  calcium transport into…

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Q: If calcium cannot be returned to the SR quickly after a muscle contraction, how would this affect…

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Q: At a normal NMJ, action potentials in the skeletal muscle cell can be blocked directly by? O A.…

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Q: An ion that is essential for muscle contraction is Ca2+.  Which of the following statements about…

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Q: What event occurs immediately before the movement of tropomyosin? Initiation of the power stroke…

A: Skeletal muscles are a special type of muscles made up of contractile tissue. They are a type of…

Q: Unlike in adult rats, muscle fibers in newborn rats Select one: O a. Removing a limb bud O b.…

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Q: An ion that is essential for muscle contraction is Ca2+.  Which of the following statements about…

A: calcium ions play a very important role in muscle contraction. Actin and myosin work together during…

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Q: Mr. White has cerebral palsy and suffers severe muscle spasms as a result of his condition. He is…

A: Muscles are tissues that are capable of contracting and relaxing. Muscle contraction is necessary…

Q: Unlike in adult rats, muscle fibers in newborn rats Select one: O a. Removing a limb bud O b.…

A: Muscle fibres are made up of only one muscle cell. They assist in the management of the body's…

Q: Which of the following statements about action potentials and information transmission in the…

A: Introduction Action potential:- It is defined as a transitory, fast, sudden, and propagating change…

Q: ne calcium binding protein in muscle is called:

A: Actin protein: It is found both in cytoplasm and in cell nucleus. Actin is highly abundant…

Q: The role of calcium in neural transmission is that it enables the axon terminals to effectively

A: Answer- a. secrete neurotransmitter into the synapse via exocytosis.

Q: Action potentials in heart muscle cells have a prolonged plateau phase caused by ______through…

A: The heart muscle cells has 5 phases in their cardiac action potential ; namely phase 0 , 1 , 2 , 3 ,…

Q: Consider the three calcium-binding proteins - Calmodulin, T roponin C and Calbindin Dok: a. What are…

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Q: Parathyroid hormone (PTH) O allows the kidneys to retain calcium. O increases calcium excretion by…

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