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.
Learn more about Contractions at:
brainly.com/question/4393982
#SPJ4
Answer:
One thing it shows is the shape of the Earth's surface in a certain region/place. They show things like the shape of mountains, or the elevation of a cliff.
Answer:
Henry's law pointed out that the <em>oxygen solubility</em> is very low. This means that only small amounts of oxygen are dissolved in the plasma. Consequently, about <em>98% </em>of the oxygen in the blood must be transported within <em>plasma </em>where it attaches to the<em> protein </em>within hemoglobin molecules. Oxygen bound to hemoglobin is referred to as <em>Oxyhemoglobin</em> . Hemoglobin without bound oxygen is called M<em>ethemoglobin (metHb) or Ferrihemoglobin</em> <em> .</em>
Explanation:
Oxygen is carried in the blood in two forms: (1) dissolved in and RBC water (about 2% of the total) and (2) reversibly bound to hemoglobin (about 98% of the total). At physiological PO2 (40 < PO2 < 100 mm Hg), only a small amount of oxygen is dissolved in plasma since oxygen has such a low solubility.
The plasma is the intravascular fluid comprised of water, dissolved proteins, glucose, clotting factors, electrolytes, hormones, and carbon dioxide. Blood volume pertains to the volume of blood in the circulatory system. In general, the blood volume of an adult is about five liters.
Oxygen is transported in the blood in two ways: A small amount of O 2 (1.5 percent) is carried in the plasma as a dissolved gas. Most oxygen (98.5 percent) carried in the blood is bound to the protein hemoglobin in red blood cells. A fully saturated oxyhemoglobin (HbO 2) has four O 2 molecules attached.
The hemoglobin is then called methemoglobin (metHb) or ferrihemoglobin (Fe+3 will not bind oxygen). Ordinarily, about 1% of the hemoglobin in a red blood cell is in this form.
