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:
Personal family system
Explanation:
A family in which parents and children all participate in negotiations as to where to go on vacation, what college the child will go to, how to handle family holidays, and other decisions is operating under personal type of family system where parents and children all participate in negotiations of everything they do such as where to go on vacation, what college the child will go to, how to handle family holidays, and other decisions.
Answer:
Explanation:
Because there's a balance between buyers and sellers, economics provides a massive average of what anything that can be bought and sold is worth to the buyer, and what is acceptable to the seller.
This is determined not by the commodity itself, but by the average the currency used by all the population involved.
From this perspective, a child would be afraid of the dark if previous experiences in the dark were negative.
On May 11, 1846, President James Polk updated Congress on recent events concerning Texas. The emissary he sent to Mexico with an offer of cash in exchange for disputed lands was rudely rebuffed. Then, Mexicans opened fire on Americans at the Rio Grande River, killing 16. "War exists," Polk declared.
