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Thoracic volume has somthing to do with heart and lungs. I don't know the exact definition but i hope this will helpThe overall Thoracic volume of Apatosaurus has been estimated at 1,700 liters allowing for a 500-liter, four-chambered heart (like birds, not three-chambered like reptiles) and a 900-liter lung capacity. An Apatosaurus is the biggest of a long neck dinosaur.
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How do you find thoracic gas volume?
Thoracic gas volume can be measured using techniques such as helium dilution or nitrogen washout. These methods involve introducing a known volume of inert gas into the lungs and measuring the decrease in concentration over time to calculate the thoracic gas volume. Alternatively, thoracic gas volume can also be estimated using body plethysmography, which determines lung volume changes during breathing.
When the volume of the thoracic cage decreases what pressure increases?
When the volume of the thoracic cage decreases, the pressure inside the thoracic cavity increases. This increased pressure aids in exhalation by forcing air out of the lungs.
What happens to the pressure and volume inside the thoracic cavity when you pull the rubber diaphragm down the lung model?
When the diaphragm is pulled down, the volume of the thoracic cavity increases, and the air pressure in the thoracic cavity decreases. This causes inhalation.
What happens to the thoracic cavity when the diaphragm relaxes?
When the diaphragm relaxes, the volume of the thoracic cavity decreases. The resultant decrease in thoracic cavity leads to an increase in the pressure. This increase in pressure leads to the exhalation of air out of the lungs into the atmosphere.
Does the diaphragm cause an increase or decrease in thoracic volume?
The diaphragm causes an increase in thoracic volume. When the diaphragm contracts and moves downward, it creates more space in the thoracic cavity, allowing the lungs to expand and fill with air during inhalation.
Does thoracic volume increase or decrease during inhalation?
Thoracic volume increases during inhalation as the diaphragm contracts and moves downward, and the rib cage expands outward and upward. This creates more space in the thoracic cavity, allowing the lungs to expand and draw in air.
What happens to the volume of the thoracic cavity during the respiratory cycle?
During inspiration, the volume of the thoracic cavity increases as the diaphragm contracts and the rib cage expands. This allows air to be drawn into the lungs. During expiration, the volume of the thoracic cavity decreases as the diaphragm relaxes and the rib cage recoils, causing air to be expelled from the lungs.
Do intercostal muscles change the volume of the thoracic cavity?
Yes. Along with the diaphram.
What is the dome-shaped muscle under the thoracic cavity and what are its functions?
The dome-shaped muscle under the thoracic cavity is the diaphragm. Its function is to contract to increase the volume of the thoracic cavity, thereby decreasing pressure in the lungs and causing inspiration.
When air moves into the lungs when the diaphragm muscle?
Descends. When you inspire, the diaphragm descends, the thoracic volume inreases, the intra-thoracic pressure drops. The difference in the environmental pressure and the intra-thoracic pressure causes air to flow into the lungs.
What is the largest muscle in the thoracic region?
The largest muscle in the thoracic region is the diaphragm. It is a dome-shaped muscle that separates the thoracic cavity from the abdominal cavity and plays a crucial role in respiration by contracting and relaxing to facilitate breathing. When the diaphragm contracts, it increases the volume of the thoracic cavity, allowing air to flow into the lungs.
How is the thoracic pressure decreased during inspiration?
Inspiration causes a drop in thoracic pressure, so the blood pressure in the area may drop, so the feeling of the pulse may feel weaker (though this would have to be an extreme case). It also can cause splitting of the second heart sound as the lungs take in more blood.
