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importance of cardiac muscles with sporting example.

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importance of cardiac muscles with sporting example.

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This muscle is responsible for pumping blood through the heart chambers and into the blood vessels the heart beats non stop about 100,000 times each day, it can do this because of the cardiac muscle. Its does this by contracting when it is relaxed it fills your heart with blood. Unlike other muscles the cardiac muscles never gets tired, it works constantly without pausing to rest. It consists of specialized fibers which do not tire. The cardiac muscle is also controlled but it is also an involuntary muscle which can continue to function without the generation of nerve impulses, so it works automatically.the best sporting example would be long distance running as the cardiac muscles will be used in this sport mostly as your heart is important in long distance running as pumps vital oxygen and blood to muscles that need it most during activity

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cardiac muscles-  Coordinated contractions of cardiac muscle cells in the heart pump blood out of the atria and ventricles to the blood vessels of the left body and right lungs in the circulatory systems.

Smooth muscles-  The smooth muscle in the uterus helps a woman to push out her baby during child birth. In the bladder, smooth muscle helps to push out urine. It also determines the flow of blood in the arteries. Smooth muscle move food through the digestive tract.

Skeletal muscles-  Just about all body movement, from walking to moving your neck is caused by skeletal muscle contraction. Your skeletal muscles in your body function continuously to maintain your posture, making one tiny adjustment after another to keep your body upright so you are not a blob on the floor.

REFERENCE

Skeletal, smooth and cardiac muscle - BBC

Smooth Muscle Examples - YourDictionary

Cardiac muscle - Wikipedia

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cardiac muscle is specialized tissue that is found only in the heart. It has characteristics similar to both smooth and skeletal muscle tissue, as well as specialized properties, that allow it to function with fast but sustained contractions, rapid conduction and coordinated movement.(https://upload.wikimedia.org/wikipedia/commons/thumb/7/7e/1020_Cardiac_Muscle.jpg/350px-1020_Cardiac_Muscle.jpg)

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Produces movement, maintains posture, stabilizes joints and generates heat for the body. Characteristics of this are  contractility which shortens which causes movement of the structures to which the muscles are attached.  Then excitability is the ability to react or contract in response to chemical or electrical signals.  (http://4.bp.blogspot.com/-oIXNTkKeg8E/U6BP8-7gnYI/AAAAAAAAAeM/r9mSvVzB0hE/s1600/Striated+skeletal+muscle+tissue.jpg)

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Muscle tissue in which the contractile fibrils are not highly ordered, occurring in the gut and other internal organs and not under voluntary control. Smooth muscles are found in the walls of your organs like your intestines, stomach, arteries, veins and capillaries. They work without you even realising and the muscular walls of your intestines contract to push food through your body.  (https://www.google.co.uk/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwir1MHH-PzWAhUCPxQKHQwiA7MQjRwIBw&url=https%3A%2F%2Fwww.britannica.com%2Fscience%2Fsmooth-muscle&psig=AOvVaw2dIdfe05m_mKjVy_z3i-Jd&ust=1508511272510640)