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What muscular organ is below the lungs It contracts and relaxes during respiration?
Wiki User
∙ 14y ago
The diaphram!!
Wiki User
∙ 14y ago
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What is the changes in size of thoracic cavity during the contraction and relaxation of diaphragm?
When the Diaphragm contracts, it is pulled down, and is pulled back up when it relaxes.Also, when you inhale, it contracts. When you exhale, it relaxes.
How does the heart contract or relax?
The heart contracts and relaxes during a cardiac cycle.
The diaphragm contracts during what phase of respiration?
inhalation
When does the lung relax?
The lung doesn't relax, it is controlled by the diaphragm When it relaxes the volume of the lungs decrease during expiration When it contracts the volume of the lungs increases during inhilation
Is diaphragm part of respirtory systems?
Diaphragm is a fibromuscular partition between the chest and the abdomen. It is part of the respiratory system in that it is one of the main muscles of respiration. When we inhale it contracts and moves downwards towards the abdomen, thus increasing the capacity of the chest and allowing the lungs to expand vertically. During exhalation it relaxes and compresses the lungs, helping in exhalation.
How is the diaphragm important?
The diaphragm is a large muscle that is located underneath the lungs. The diaphragm is important in respiration. During respiration, the diaphragm contracts, creating more space in the thoracic cavity for air to be breathed in.
Function of the cardiac muscle?
Cardiac muscle tissue is the tissue that makes up the bulk of your heart and when it contracts it will squeeze blood to your lungs through the pulmonary circuit, and to the rest your body through the systemic circuit.
What is the job of the diaphram?
The major muscle that the body uses for breathing The above answer is of course correct for the thoracic diaphragm but there are others for example the pelvic diaphragm. A diaphragm is a domed muscular wall the reperates to regions. When is contracts it flattens to increase pressure on the inside of the dome and decrease pressure on the outside of the dome. In the case of the pelvic diaphragm is domes downards and contracts to resisf the increased pressure from the thoracic diaphragm on the abdomen during inhalation.
What is it called when the diaphragm relaxes and the chest cavity becomes smaller?
During exhalation the diaphragm relaxes and the chest cavity gets smaller.
When you throw a punch does your biceip contract or relax?
The bicep relaxes during the throw (the outwards motion) and the tricep contracts. MORE: If the arm/shoulder moves backwards in the lead up to the throw then the bicep might contract during that backwards motion (in anticipation of the throw). This can give greater force to the punch but might "telegraph" the punch to the target. However the bicep is relaxed during the actual throw - it is the tricep that contracts to straighten the elbow joint.
What increases during strenuous muscular activity?
The temperature (second law of thermodynamics) The amount of lactic acid in your muscle(s) Your heartrate Your respiration rate (erm .... you'll breathe faster)
What two statements describe how the diaphragm works?
The diaphragm is a dome-shaped muscle that contracts and relaxes during breathing. When it contracts, it flattens out and pulls downwards, creating a vacuum that expands the chest cavity and draws air into the lungs. When the diaphragm relaxes, it moves back to its original dome shape, pushing air out of the lungs as the chest cavity decreases in size. This process of contracting and relaxing allows for inhalation and exhalation, enabling breathing to occur.
