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What does the human diaphragm do?
It contracts and relaxes to help pull air into the lungs and push it back out. The diaphragm contracts and moves lower which expands the ribs and allows air to move into the lungs. When it relaxes, the ribs contract and push air back out of the lungs.
How do the lungs move?
The diaphragm is a strong wall of muscle on the bottom of the chest cavity. As this wall of muscle expands downward, a vacuum is created which pulls air into the lungs. As the diaphragm returns to it's original position, air is pushed out of the lungs.
How do muscles work in pairs to move the body?
When one muscle of a pair contracts, the other muscle of the pair relaxes to allow movement of the body part.
How do muscles work pairs to move the body?
When one muscle of a pair contracts, the other muscle of the pair relaxes to allow movement of the body part.
What muscle compress and move downward when you inhale?
the diaphragm. It is right above the heart and lungs, and expands and contracts when you breathe in and out. You can almost feel it move down a little, when you release air.
Why do lungs have no muscle built in them?
Lungs do not need to contain muscle tissue because their function is to exchange gases (oxygen and carbon dioxide). The diaphragm is a muscle just under your ribs that contracts and relaxes to expand and deflate the chest cavity. As the diaphragm does its job, air floods into the lungs (which are more or less bags of tissue). The reason the air floods into the lungs has to do with air pressure and the tendency of molecules to move to places where they will be less crowded.
How does the triceps and biceps work together to straighten your arm?
When lowering arm biceps relax and triceps contracts. When one contracts the other relaxes when you move it forward and downward.
What happens to the muscle as the arm moves down?
One group of muscles contracts, and the other group extends. As an arm moves down, the bicep muscle (the one that faces the front side of the body and goes from the shoulder to the elbow) relaxes. When the muscle relaxes, it goes from being contracted to elongated. This relaxation happens at the same time that the tricep muscle (the one that faces the backside of the body and goes from the shoulder to the elbow) contracts. This happens because the human body's skeletal muscles have what can be considered compliments. I say this to mean that when a muscle relaxes, there is a muscle that contracts simultaneously. Therefore, they move antagonistically to each other. This is to serve the purpose of creating specific movements that help assist in locomotion. On the molecular level of what happens when a muscle contracts and relaxes, the actin and myosin filaments in muscle fiber overlap to contract and separate to relax.
The muscular system allows our bones to do what?
Your brain sends impulses to nerves in your muscles when you desire to move. When the muscle contracts or relaxes, it puts on or releases tension of the ligaments connecting muscle to bone, causing motion.
Do lungs have musles?
yes because organs are made up of tissues and so are muscles and for the lungs to move they need the muscle. So yes your lungs do have muscles.
How do skeletal muscles work together?
Skeletal muscles have an antagonistic relationship. To move about a joint one muscle contracts while its opposite muscle relaxes. For example, movement of the forearm is done through the bicep and tricep along the elbow joint.as one muscle contracts, the other relaxes
What is the muscle that contracts to let air in and relaxes to push out air?
The primary muscle responsible for air entering the lungs is the diaphragm. The diaphragm is a dome-shaped muscle that lies just below your lungs, internally separating the thoracic cavity from the abdominal cavity. When you take in a deep breath, your diaphragm (along with other accessory muscles) contracts and flattens while your chest wall expands creating a negative pressure within the thoracic cavity. This allows air to move from an area of high pressure to an area of lower pressure during inhalation.
