An isometric contraction is the kind of contraction that leads to development of tension but no increase in length.
An isometric contraction occurs as the muscle produces tension without changing the angle of a skeletal joint. Isometric contraction is a static muscle action that helps to maintain the posture. For example, the antigravity muscles. It occurs in the biceps when the arms may be holding a weight. In such a posture, the biceps enlarge due to holding of weight and produces tension but do no increase in length. It stops the flexion of elbow. In such contraction, no work is done, and lesser amount of heat energy is released in comparison to isotonic contractions.
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Answer:
It was a test of strength for the people.
Explanation:
Back in Greek times, people competed in the Olympics. That's where it all started. They would do games in honor of their gods. The main ones they celebrated were:
Nike, goddess of victory
Zeus, lord of the sky
Apollo, god of the sun and music
Hermes, god of thieves.
Answer:
The correct approach will be "Postsynaptic neuron".
Explanation:
- Neuron coordination usually takes place through microscopic gaps, considered synaptic clefts. Hundreds as well as thousands of several other neurons can interact between each neuron.
- A signal-sending neuron expresses chemicals known as neurotransmitters, which attaches to a receptor on either the transmitting neuron's ground.
Answer:
In this milestone decision, the Supreme Court ruled that separating children in public schools on the basis of race was unconstitutional. It signaled the end of legalized racial segregation in the schools of the United States, overruling the "separate but equal" principle set forth in the 1896 Plessy v. Ferguson case.
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