Categoría: Fisiología Médica Vídeos

Más que una simple idea, es un Sueño.


The human body develops, replaces old cells with new cells, and repairs itself, with the help of cells that constantly multiply by dividing. The process begins in the cell nucleus. Identical copies of DNA molecules organize into chromatid pairs within the chromosome structure. These pairs are connected to each other at the chromosome’s centromere. In…
Leer más



Cell fragments called platelets, or thrombocytes, make up about 2 percent of blood. Platelets stop blood loss from damaged vessels. When a blood vessel tears, platelets at the site adhere to the wall of the vessel to close the tear. The shape of the platelets changes as they liberate the contents of their vesicles. This…
Leer más



When bacteria or other pathogens are present in the body, certain white blood cells categorized as phagocytes consume the microorganisms to protect the body from infection. The process of consuming the pathogen begins when the phagocyte is attracted to chemicals from the pathogen, and through receptors, binds to it. The phagocyte ingests the microbe, encasing…
Leer más

red blood cells

Red blood cells

The bloodstream delivers oxygen to cells and removes carbon dioxide waste through a process called internal respiration. In the lungs, oxygen is absorbed into the erythrocytes in the blood stream. These cells, commonly called red blood cells, contain gas-transporting molecules called hemoglobin. Oxygen binds to these molecules. The oxygenated blood then moves through the vasculature.…
Leer más