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What is the sequence of muscle action that take place during inhalation and exhalation?
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Does the rib expand during inhalation or exhalation?
The ribs expand during inhalation. This creates negative pressure on the lungs and draws air into them. During exhalation the rib cage gets smaller, compressing the lungs, in a sense, and forcing air out.
What are abnormal breath sounds heard during inhalation or exhalation called?
Crackles
Which muscle under the lungs pulls down when humans breathe in?
When the lungs are expanded, this action takes place due to the diaphragm contracting during inhalation. During exhalation, the diaphragm relaxes.
What is a dome shaped muscle found under the rib cage which assists during inhalation and exhalation?
Diaphragm
What happens to animals during respiraton?
Respiration is the exchange of gases such as oxygen and carbon dioxide, not to be confused with ventilation, which is inhalation and exhalation
Which position should the ribs be kept in during inhalation and exhalation?
keep your chest stable, you dont need to raise your chest
What muscle contract during inhalation and what muscles contract during exhalation?
The intercostal muscles, (muscles between the ribs), contract.
What sequence correctly shows the path of carbon dioxide during respiration?
External respiration is the exchange of oxygen and carbon dioxide between the lungs, body and the outside environment; the breathing process known as inhalation and exhalation. Upon inhalation, air enters the body and is warmed, moistened, and filtered as it passes to the alveoli of the lungs. Oxygen diffuses from the alveoli to the bloodstream, then into the red blood cells. Simultaneously, carbon dioxide in the blood is diffused from the blood to the alveoli, and exhalation expels the carbon dioxide from the alveoli.
What is a sinus arrhythmia?
This is an irregular cardiac rhythm due to a variation in the sinus rhythm -- the heartbeat usually increases during inhalation and decreases during exhalation. This condition is common in children and young adults.
What step in ventilation requires muscle work?
The inhalation phase. During the inhalation phase, the diaphragm contracts and this requires energy expenditure. The exhalation phase, on the other hand, only involves passive muscle recoil of the diaphragm and does not require work or energy.
Describe the movement of the ribcage and diaphragm during exhalation?
I believe the ribs are there to protect our lungs, heart etc. When we breath in, what we are actually doing is telling our diaphragm to contract, which moves it in a downwards motion. This caused pressure in our lungs to lower which pulls in air.
When the heart rate varies with respirations this is called?
This is called sinus arrhythmia. It is a normal phenomenon where the heart rate increases during inhalation and decreases during exhalation. It is more commonly seen in younger individuals and can be a normal finding.
