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Why can the lungs expand and contract Is it because of muscular walls?
Wiki User
∙ 13y ago
It is because of the diaphrahm.
Wiki User
∙ 13y ago
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What produces lubricating fluid that reduces friction when the lungs expand?
Pleura
The thoracic cavity is surrounded by a stiff rib cage while the abdominal cavity has a softer muscular wall Why?
The thoracic cavity contains the heart and lungs, both of which are constantly expanding and contracting. The ribs in the thoracic cavity serve both as protection and support, allowing the lungs to expand and contract without running the risk of putting itself into a dangerous situation, including even external threats (or more likely itself). The abdominal contents, opposingly, are more muscular and less prone to damage, and do not need such excessive protection. Moreover, other areas such as the brain are encased in a cranial cavity of bone, and like the thoracic cavity, the organs enclosed are quite fragile. The abdominal cavity, also, contains the stomach, which may expand, which is impossible when a layer of bone is surrounding it, as is expelling it's wastes into the pelvic cavity.
What happens when air is blown into a balloon?
Air is transferred from your lungs into the balloon, where it diffuses inside the balloon and due to the elastic tendancies causes it to expand from the pressure of the increasing amount of air you blow in.
Where in the body would you find the diaphragam?
The diaphragm is the muscle below the lungs, and above the stomach, responsible for breathing. The diaphragm works by pulling tighter, thus decreasing the pressure in the lungs, pulling air in through the trachea. To exhale, the diaphragm relaxes, and chest muscles contract, pushing the air back out.
Why do you say that the lungs work like a train station?
because you throat vibrates when you sing or speak
Is it true that lungs can expand and contract because they are muscular walls?
No. They expand because there's a diaphragm that sits below the lungs and make them expand
How is the muscular system and respitory system connected?
The muscles that cause the lungs to expand and contract and those in the windpipe are part of the muscular system. The circulatory system carries Oxygen from the lungs to the muscles, then carries carbon dioxide from the muscles to be expelled by the lungs. The blood vessels throughout the body have integrated muscle.
How does the respiratory system work together with the circulatory system and muscular system?
The circulatory system carries the oxygen full/lacking blood to and from the lungs. The muscular system makes the lungs expand and contract so the air can flow in and out of the lungs and out the capillaries.
When the diaphragm and other respiratory muscles contract the lungs will experience what?
Inspiration - the process of breathing in. The lungs expand and take in air.
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.
What two parts help expand and contract the chest cavity while breathing?
The lungs and diaphragm.
What part makes your lungs inflate (expand) and deflate (contract)?
Using your muscles to voluntarily force the diaphragm lower into the abdomen will cause air to be drawn into the lungs. Lowering the lung pressure in this way is the only way to expand your own lungs. It is possible to expand them using compressed air, as with a ventilator or CPAP device (continuous positive airway pressure).
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.
How do the two lungs work together?
Your lungs are placed in the thorax. Your thorax or chest expand and contract. So that your lungs get and gives air. This happens simultaneously. So the lungs work together.
What is diaphragm and what does it do?
It's just below the lungs and is essential for breathing. The diaphram is what moves causing the lungs to expand and contract making air come in and out.
What are the bones surrounded the lungs?
The bones surrounding the lungs are the ribs. They are designed to shield the lungs from injury and allow them to fully expand and contract under normal operation.
Does your chest expand because your lungs inflate or do your lungs inflate because your chest expands?
There are no muscles in the lungs that help inhale or exhale, this is the job of the diaphragm.
