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Pressure within the thorax decreases and air is drawn into the lungs

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Elza Olson

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2y ago

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What are the three phases of breathing?

The three phases of breathing are:The Active phase which is known as (inhalation/ inspiration).Phase 2. gas exchange in the lungs also known as (Internal exchange).The Passive phase which is known as (exhalation /expiration).


Which phase of breathing inhalation or exhalation is considered active and passive?

Inhalation is an active process and exhalation is a passive process


The diaphragm contracts during what phase of respiration?

The diaphragm contracts during the inhalation phase of respiration. When it contracts, it moves downward, increasing the volume of the thoracic cavity and causing air to rush into the lungs.


What is the deep muscle of the thorax that promote the inspiratory phase of breathing?

The diaphragm is the primary muscle responsible for the inspiratory phase of breathing in the thorax. It contracts and moves downward, increasing the volume of the thoracic cavity and allowing air to enter the lungs. This action helps in the intake of oxygen during inhalation.


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.


Do you inhale or exhale when the diaphragm expands and arches upward?

When the diaphragm expands and arches upward, it creates more space in the chest cavity, allowing air to rush in. This is called the inhalation phase of breathing, so you would be inhaling during this process.


Inhalation is active phase of breathing?

Actually, inhalation is considered a passive process because it is driven by the contraction of the diaphragm and the external intercostal muscles. These contractions create a negative pressure in the chest cavity, allowing air to be pulled into the lungs. Exhalation, on the other hand, is considered an active process, involving the relaxation of these muscles to push air out of the lungs.


What phase happens during mitosis?

Prophase.


What happens s?

DNA replication happens during s-phase.


What happens the temperature during a phase change?

nothing


What happens during exhalation phase of breathing?

Exhaling is expelling used air from the lungs. During exhalation,the diaphragm moves upward while the rib cage moves downward so it goes back to its dome-shaped position


What happens during the exhalation phase breathing?

Exhaling is expelling used air from the lungs. During exhalation,the diaphragm moves upward while the rib cage moves downward so it goes back to its dome-shaped position