Answer:
The correct answer will be option D- blocking Cl channel.
Explanation:'
Quinidine is a stereoisomer of quinine derived from the bark of Cinchona plants which is used in the medication of the heart as class I antiarrhythmic agent. This alkaloid decreases the automaticity and increases the duration of the cellular action potential of the heart.
This alkaloid acts by blocking the neurotransmission through blocking of sodium and potassium channels responsible for the depolarization in non-nodal tissues like atrial cells, ventricular cells. This decrease in the neurotransmission of an action potential depends on the Ca⁺² ions and the quinidine can also act by blocking the Ca⁺² channels as well as B adrenergic receptor.
Thus, option D-blocking Cl channel is the correct answer.
Answer:
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Explanation:
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Answer:
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Answer:
What effect does atmospheric pressure and gravity have on the human body?
Explanation:
<u><em>What is the effect of atmospheric pressure on living beings</em></u><u> </u>?: - Increases the speed of breathing and the volume of air inspired by hyperventilation. - Heart rate and blood flow are increased. - The body produces more red blood cells and hemoglobin to improve the ability to transport oxygen from the blood.
<u><em>Zero gravity is the closest thing to floating, but little has been said about its long-term effects on the human body</em></u><em>:</em> - Vertebral stretching. - Bone loss and muscular atrophy. - Space adaptation syndrome. - Fluid displacement. - Loss of heart conditions.
The main components of fitness are;
- Endurance
- Flexibility
- Strength.
<h3>What is fitness?</h3>
The term fitness refers to the fact that the body has enough energy and stamina to carry out all the daily activities that a person ought to carry out. We know that engaging in fitness avoid different kinds of diseases. This is why fitness is very important in preventive medicine.
The main components of fitness are;
- Endurance
- Flexibility
- Strength.
Learn more about fitness:brainly.com/question/16289258
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