Examlex
During the final phase of prenatal development, called the fetal stage, the vital structure that is developing is the _____.
Blood pH
The measurement of acidity or alkalinity in the blood, essential for maintaining homeostasis and normal bodily function.
Respiratory Center
A region of the brain stem involved in the regulation of breathing rhythm and depth.
Intracellular Enzymes
Enzymes that function within the cells to facilitate metabolic processes and biochemical reactions.
Sodium-Potassium Pump
A cellular mechanism that uses ATP energy to transport sodium ions out of the cell and potassium ions into the cell, crucial for maintaining cell potential.
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