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Why does a belly of a muscles bulge when it contract?
Because the muscle is a set volume. It can't become bigger or smaller, but It can be long and slender or short and stubby. Both these shapes take up the same volume.
What is another way to say changing mass and volume?
changing mass and volume
What are the muscles involved in changing the volume of the thorax during breathing?
The diaphragm and external intercostal muscles are primarily involved in changing the thoracic volume during breathing. The diaphragm contracts during inhalation to increase thoracic volume, while the external intercostal muscles help lift and expand the rib cage.
What increases the volume of the thorax?
Inspiratory muscles such as the diaphragm and external intercostal muscles contract to increase the volume of the thorax. This action lowers the intrathoracic pressure, allowing air to rush into the lungs during inhalation.
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.
What is an example of changing the volume of a material is?
For example changing the volume of a balloon.
What is changing shape but not changing volume?
A cloud would be an example of something changing shape but not changing volume. As a cloud moves and disperses, its shape can change while the total volume of its water droplets remains the same.
How can you change density of a substance?
You can change the density of a substance by changing its volume. Density is equivalent to mass over volume. So changing the volume affects density.
What state of matter can expand or contract depending on the volume of its container?
A gas can expand or contract depending on the volume of its container. Gases have no fixed shape or volume, and they fill the space available to them. When the volume of the container increases, the gas molecules spread out and the gas expands. Conversely, when the volume decreases, the gas molecules are compressed, causing the gas to contract.
What happens to blood pressure when the smooth muscle of an arteriole contracts?
When the radius of the smooth muscle decreases the pressure increases. So the blood pressure becomes higher
Normal skeletal muscle has what percent mitochondria?
12 percent of the volume of skeletal muscle.
What creates a greater change in volume for a cylinder changing only the radius or changing only the height?
Changing the radius.
