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When you breath which muscle is doing the main contraction to force air in and out?
Wiki User
∙ 15y ago
The diaphragm, a muscle below the lungs, contracts to pull air into the lungs. In order to forcefully exhale, both the abdominal muscles and the internal intercostal muscles can be contracted to compress the lungs.
Wiki User
∙ 10y ago
Wiki User
∙ 15y agothe diaphragm. when you breathe, the diaphragm contracts which helps to expand the thoracic cavity and when you exhale the diaphragm relaxes. The diapragam
Wiki User
∙ 15y agointercostals, diaphragm, and other muscles of the thoracic wall.
Wiki User
∙ 9y agoThe main muscles used fro breathing is he diaphragm.
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What factors affect muscle contraction?
the degree of muscle stretch is affect the strength or force of skeletal muscle contraction
What is the mechanical force of muscle contraction is generated by?
The mechanical force of muscle contraction is generated by a sliding of thin filaments past thick ones.
The force of a muscle contraction is not affected by?
the amount of ATP in the muscle cells
A contraction in which a muscle exerts force lengthens and is overcome by a resistance?
Eccentric contraction (isotonic)
What is the most common form of force muscle production?
The most common form of muscle force production is the concentric contraction force.
What is muscle force and its vector representation?
Muscle force is the force produced by the contraction of a muscle. Force vectors, torque vectors, and difference vectors can all be used to help describe this force.
What is a mucle contraction?
A muscle contraction happens when too much force or stress is forced upon a muscle cavity. Dr. Whitmore PHD
How does the frequency of stimulation affect the amount of force generated by the muscle?
Increasing the stimulus to an isolated muscle increases the strength of a contraction. A muscle begins to contract when the stimulus is given; however, if the muscle does not finish contracting before the next stimulus hits, then the force of the contraction will increase to finish the contraction. This is known as wave summation.
What type of contraction in which the muscle fibers do not shorten are called?
If the muscle can not shorten because the muscle is trying to move a load that is greater than the force, then the contraction is isometric.
In a concentration contraction the muscles shorten to produce movement?
True.
What is it called when a muscle applies force without moving?
isometric contraction
What is measured by the amount of time a muscle group can sustain a contraction?
Muscle strength measures the amount of force a muscle can exert during contraction. The determining factor of strength is the fast twitching fibers.
