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The diaphragm (also called the thoracic diaphragm) is a layer of muscle extending across the bottom of the ribcage. The diaphragm separates the thoracic cavity from the abdominal cavity. A diaphragm in anatomy is generally used to describe flat structures, like the urogenital and pelvic diaphragm. However when someone speaks of "the diaphragm" they generally mean the thoracic one. With regards to respiration, the diaphragm is a crucial aspect of the process. During inhalation, the diaphragm contracts, allowing the thoracic cavity to grow (the external intercostal muscles also aid expansion) allowing the lungs to take in more air. This also decreases intra-thoracic pressure, meaning when the thoracic cavity grows it creates suction which draws air into the lungs. When the diaphragm relaxes, air is exhaled thus relaxing (opposite of contracting) the diaphragm. This entire process happens every time a breath is taken.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoThe purpose of the diaphragm is to allow the lungs to expand and contract. When the diaphragm contracts, it flattens out and causes the lungs to expand, however when it relaxes the lungs contract.
Upon the lungs expanding, air enters through the trachea to fill the vaccuum of space, this is us inhaling air.
When the lungs contract, the air is forced back out of our lungs.
The diaphragm is the muscle responsible for the expanding and contraction of the lungs to allow this air movement in and out of our body.
Wiki User
∙ 11y agoWhen you are inhalating the diaphragm contracts and moves downwards making the volume of the thoraxic cavity to enlarge. This action reduces the intra-thoracic pressure. Mechanically, by enlarging the cavity, a succion is created making air to draw into the lungs.
Wiki User
∙ 16y agoYour diaphragm contracts and expands when you breath. When the diaphragm contracts, air rushes into the lungs. When the diaphragm relaxes, air is exhaled.
Wiki User
∙ 11y agohe diaphram helps the lungs by getting the air and pyshing it in and out so you can breathe
Wiki User
∙ 13y agodiaphragm helps breathing by contracting or relaxing forcing air in and out of the lungs, located right beneath the lungs
Wiki User
∙ 11y agowhen the diaphragm contracts down it flatten the thoracic cavity floor thus expanding the lungs in a inferior direction.
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Location of lungs in context of diaphragm?
The lungs are located anterior to the diaphragm. The diaphragm is the means by which the lungs inflate and deflate.
Is the lungs above or below the diaphragm?
the lungs are above the diaphragm.
How the diaphragm helps the lungs?
Your diaphragm contracts and expands when you breath. When the diaphragm contracts, air rushes into the lungs. When the diaphragm relaxes, air is exhaled.
What muscles move the air in and out of the lungs?
I think you meant move air into the lungs. The muscle is the diaphragm.
What muscle in the lungs which contract and releases changing the volume of the lungs?
I believe that answer is the diaphragm. As the diaphragm moves up and down, it expands the lungs, and when the diaphragm goes up, the lungs release the air out again.
What is the importance of diaphragm?
The importance of diaphragm is that it helps the functionality of the lungs. The diaphragm will contract and expand so as it regulate the air pressure in the lungs.
Which of these is a muscle lungs nostrils diaphragm pharynx?
Diaphragm
How does the diaphragm work to allow the lungs to inflate?
The diaphragm is a thin band of muscle under the lungs. When it contracts, the lungs are pulled up and out, reducing the air pressure and causing oxygen to be drawn in. When the diaphragm relaxes, the carbon dioxide is pushed out of the lungs.
Is the diaphragm superior to the lungs?
Yes the liver lies below the diaphragm on the right side of the abdomen.
When air moves into the lungs when the diaphragm muscles do what?
The diaphragm moves down to make the lungs expand (inhalation)
What is a muscle that forces the lungs to expand and contract and bring air into and out of the lungs?
Lungs do not actively expand and contract by themselves. A muscle below the lungs called the diaphragm acts as a bellow, creating negative pressure within the abdominal cavity that holds the lungs to allow air to rush in and out the lungs.
What is Diaphragm?
Lungs do not contain muscle tissue. air enters your lungs when the muscular diaphragm contracts, pulling your ribs up and out. The diaphragm relaxes when you exhale.
