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Resistance of air passages refers to the degree to which air flow is impeded as it travels through the respiratory system. This resistance is influenced by factors such as the size of the airways, the presence of inflammation or obstruction, and the elasticity of the lung tissue. High resistance can make breathing difficult and may be a characteristic of conditions like Asthma or chronic obstructive pulmonary disease.
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What is airway resistance and how does it affect work of breathing?
Airway resistance refers to the obstruction or restriction of airflow in the respiratory passages. Increased airway resistance makes it harder for air to flow in and out of the lungs, requiring more effort and energy during breathing. This results in an increased work of breathing as the respiratory muscles have to work harder to overcome the resistance and maintain adequate ventilation.
What is air resistance and what are the two factors that air resistance depends on?
Air resistance is the force that opposes the motion of an object through the air. It depends on the speed of the object and its surface area exposed to the air.
When an object falls through the air encounters air resistance its overall speed will be than if it had not encountered air resistance?
The resistance do obstruct the object. The object always travel slower with air resistance. Air resistance is higher with velocity and the object falling through air would have a limited velocity that it can't go through.
Is air a source of resistance?
Yes, air can provide resistance to objects moving through it. This resistance, known as air resistance or drag, is caused by air molecules colliding with the moving object and can slow down its motion.
What are the factors that effect air resistance?
The factors that affect air resistance include the speed of the object (higher speed leads to greater air resistance), the surface area of the object (larger surface area experiences more air resistance), the shape of the object (streamlined shapes experience less air resistance), and the air density (higher air density increases resistance).
What is it where the lung fails to expand because there is blockage of the air passages or pneumothorax?
In atelectasis, the lung fails to expand because there is a blockage of the air passages or pneumothorax.
What is air resistance and what are the two factors that air resistance depends on?
Air resistance is the force that opposes the motion of an object through the air. It depends on the speed of the object and its surface area exposed to the air.
What force slows objects moving through the air?
Air resistance
What is airway resistance and how does it affect work of breathing?
Airway resistance refers to the obstruction or restriction of airflow in the respiratory passages. Increased airway resistance makes it harder for air to flow in and out of the lungs, requiring more effort and energy during breathing. This results in an increased work of breathing as the respiratory muscles have to work harder to overcome the resistance and maintain adequate ventilation.
Why does the oscillation of a pendulum gradually slows down after a certain interval of time?
Energy is gradually lost, through air resistance, and resistance in the string.Energy is gradually lost, through air resistance, and resistance in the string.Energy is gradually lost, through air resistance, and resistance in the string.Energy is gradually lost, through air resistance, and resistance in the string.
Does smoking block the air passages to your lungs?
YES
What are small air passages that extend from the trachea?
bronchi
When an object falls through the air encounters air resistance its overall speed will be than if it had not encountered air resistance?
The resistance do obstruct the object. The object always travel slower with air resistance. Air resistance is higher with velocity and the object falling through air would have a limited velocity that it can't go through.
Passages through which air enters the lungs?
Passages through which air enters the lungs is called the bronchi which branch off of the trachea.
How does surface area affect air resistance?
air resistance affects
Explain how resistance in the air passages compliance elasticity of the lungs and the surface tension in the alveoli affect the flow of air in and out of the lungs?
Air tends to flow from high pressure to low pressure. If the pressure in the lungs exceeds that pressure at the mouth (which is usually atmospheric pressure), then air will flow out of the lungs. During normal inhalation, the diaphragm muscle contracts, pushing the abdominal contents, but increasing the volume on the thoracic cavity (the chest). Since at first the volume of the lungs increases as it is pulled with the diaphragm, the intrathoracic pressure decreases, and air moves into the lungs. If the pressure in the lungs were to increase relative to the air at the lips then air would move out. The elasticity of the lungs tends to make the lungs want to assume a smaller size (like the elasticity of a stretched rubber band). This force in addition to the force of expiratory muscles if they are being used will increase pressure in the lung (under normal circumstances this is basically intrathoracic pressure). However, the velocity of the flow of air is limited by airways resistance. [This is similar to V=IR from electricity voltage = current x resistance] In the case of the lung, the flow is proportional to the change in pressure (delta pressure intrathoracic pressure vs atmospheric pressure) and inversely proportional to the airways resistance. So resistance in the air passages with slow the flow of air out of the lung. Now you might think that one could easily overcome airways (air passages) resistance's negative affect on flow by increasing the pressure in the lungs. Unfortunately this cannot be done without increasing the airways resistance too. Because as I try to squeeze air out of my alveoli with more pressure that pressure is transmitted throughout the lung and to my small airways that are compressible and thus if a bear were to hug me and try to squeeze air out of me faster this would also increase the airways resistance by narrowing some of the small airways, increasing resistance and decreasing flow.
What are the different types of resistance available on exercise bikes?
The different types of resistance available on exercise bikes are magnetic resistance, air resistance, and friction resistance. Magnetic resistance uses magnets to create resistance, air resistance uses air to create resistance, and friction resistance uses a brake pad to create resistance.
