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What happens If a muscle is applied to a load that exceeds the muscle's maximum tension?
The muscle length will not change during a contraction.
Does the Z line shorten during muscle contraction?
Yes, the Z line shortens during muscle contraction.
The muscle decreases in muscle length during contraction but tension is the same?
Isotonic contraction
What muscle contraction occurs in the biceps brachii during the upward phase of the bicep curl?
a concentric contraction- a concentric contraction involves the muscle length, shortening during a contraction! YA-trick-YA!
What happens to the Z line during muscle contraction?
During muscle contraction, the Z line moves closer together, causing the muscle to shorten and generate force.
What happens to a muscle contraction if there is an excess amount of either Ca2 plus or ATP present during the contraction?
During muscle contraction the actin heads pull the sarcomere closed
During muscle contraction....... attach to ...............?
Troponin
In addition to myosin what other protein is involved in skeletal muscle contraction?
Myosin acts with Actin during muscle contraction
What band shortens during skeletal muscle contraction?
during skeletal muscle contraction ,I band and H zone shortens. Sarcomeres
What are the differences between the a and i bands in terms of their function and structure?
The A band is the dark band in a sarcomere that contains thick myosin filaments and does not change length during muscle contraction. The I band is the light band that contains thin actin filaments and shortens during muscle contraction. The A band provides stability and structure, while the I band allows for muscle contraction and relaxation.
During muscle contraction calcium attaches to what?
Troponin
What is the function role of t tubules?
Enhance cellular communication passage for nervous stimulation during muscle contraction.
