The answer is Osteon. Osteons<span> are several millimeters long and about 0.2 millimeter in diameter; they tend to run parallel to the long axis of a bone. The </span>osteon<span>units of bone are made up of Haversian canals (HC) and Volkmann canals (VC), which run perpendicular to the long axes of </span>osteons<span> and connect adjacent Haversian canals.</span>
The following factors will decrease the amount of oxygen discharged by hemoglobin to peripheral tissues.
A) decreased temperature
B) increased pH
C) decreased amounts of DPG
D) increased tissue PO2
How oxygen is being transported?
About 97% of the oxygen used during breathing is delivered by red blood cells in the blood, while the remaining 3% dissolves in plasma. The pigment hemoglobin, which is found in RBCs, is what gives blood its red color. According to the partial pressures of oxygen, carbon dioxide, H+ concentration, and temperature, oxygen attaches to hemoglobin to create oxyhemoglobin. Up to 4 oxygen molecules can be carried by a single hemoglobin molecule. The optimum circumstances for the synthesis of oxyhemoglobin include low temperature, high H+ concentration, and oxygen partial pressure. In the alveoli, these criteria are satisfied. But in the tissues, the circumstances are different, and as a result, oxygen is separated from oxyhemoglobin.
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A- tectonic plate motion caused the Atlantic Ocean basin to increase in size
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