The diaphragm has several functions:
Cavity Barrier
The diaphragm is a flat sheet of muscle between the thoracic cavity (contains the lungs and heart) and the abdominal cavity (contains the stomach, liver, spleen, intestines, galbladder, pancreas, etc.) The diaphragm rests just below your lungs, and just above your liver, stomach, and spleen. It is shaped like an upside-down bowl, with the edges of the round bowl tightly fastened all around the inside of your rib cage. At rest, the top of the bowl points up, toward your lungs.
.
Breathing
When the muscles in the diaphragm contract, the "bowl" flattens out and pulls down - into your abdominal cavity, toward your belly button. This downward movement coupled with the flattening of the muscle sheet increases the volume (the size) of the thoracic cavity. The increased volume creates a negative pressure (a vacuum) upon your lungs, and this negative pressure in turn causes your lungs to expand. As the lungs expand, air rushes in through your nose and mouth. This series of events is the means by which you inhale.
Both the diaphragm and the lungs have a natural elastic quality, so when you relax the diaphragm muscles, it returns to it's bowl shape, thus creating a positive pressure on your lungs, allowing them to return to their smaller size, in turn causing you to exhale.
Note that breathing is also facilitated by the rib muscles, called intercostal muscles. The diaphragm works together with the intercostal muscles to expand and contract the thoracic cavity to enable breathing.
.
Material Expulsion
When you contract the muscles in the diaphragm, it flattens out and pushes downward, creating positive pressure upon the abdominal cavity. This increased pressure can assist expelling substances out of the abdominal cavity during regurgitation (throwing up), urination (peeing), and defecation (pooping).
.
Hiccups
While arguable as a useful function, the diaphragm is responsible for hiccups. Hiccups occur when the diaphragm involuntarily spasms, causing a sudden rush of air into the lungs. The unanticipated inrush of air often momentarily forces the epiglottis closed, and it is the closing of this flap that causes the classic "hiccup" sound.
.
Further Information
For more information, follow the related links below.
it is an insert that prevents the sperm from going any further. it blocks them from swimming to fertilize the egg. it does not kill the sperm or protect from STDsC 3,4 and 5. ( 345 keeps the diaphragm alive )
Yes it does, only no air is supplied because it is in amniotic fluid. The lungs and the diaphragm function during fetal development in order to prepare for breathing air after birth. During the time in the uterus, the gas exchange is done by the mother through the umbilical cord and her lungs.
The diaphragm is important for breathing as it contracts and relaxes to help expand the lungs and allow air in. It also plays a role in maintaining posture and supporting the organs in the abdominal cavity. Strengthening the diaphragm can improve breathing efficiency and overall lung function.
The vessels that supply blood to the diaphragm are the inferior phrenic arteries and branches of the musculophrenic artery. These blood vessels provide oxygenated blood to the diaphragm, which is essential for its function in breathing.
The abnormal downward displacement of the diaphragm is commonly known as diaphragmatic eventration. This condition happens when the diaphragm muscle becomes weak and allows abdominal organs to move up into the chest cavity, affecting breathing and lung function. Treatment options may include surgery to correct the positioning of the diaphragm.
gthrs
Allows people to breath
to hold the light
The diaphragm reduces the light from under the stage which can improve the image contrast.
The diaphragm reduces the light from under the stage which can improve the image contrast.
The diaphragm reduces the light from under the stage which can improve the image contrast.
The role of diaphragm is to vary the amount of light passing through the aperture.
The role of diaphragm is to vary the amount of light passing through the aperture.
The diaphragm reduces the light from under the stage which can improve the image contrast.
The diaphragm reduces the light from under the stage which can improve the image contrast.
The diaphragm reduces the light from under the stage which can improve the image contrast.
The heart is anchored to the diaphragm in order to keep it in place. The diaphragm also reduces friction to the outer membranes of the heart.