This lesson will cover red blood cells by looking at
Red blood cells are also known as erythrocytes, and they make up about 45% of total blood volume. Their main role is to carry oxygen to cells and to carry carbon dioxide away. They are shaped like a disk with a little indentation in the middle of it; the shape of a red blood cell is important to its function.
An important component of red blood cells is a protein called hemoglobin, which gives the red blood cell its color. It allows the red blood cells to carry oxygen to cells and tissues. Maintaining a stable count is important for homeostasis; we need to have this stable red blood cell count in order to ensure that our cells and our tissues are getting the oxygen that they need.
Some facts about red blood cells:
Production of red blood cells is an important process for our body; this process starts with the kidneys. The kidneys play a large role in filtering blood, and, as blood is being filtered, they help to monitor oxygen levels in the blood. If the kidneys detect a decrease in oxygen levels, they are going to create and secrete a hormone called erythropoietin, abbreviated as EPO. EPO will then stimulate bone marrow to produce new red blood cells.
This is an example of a negative feedback loop, because a change was detected and then reversed to bring the body back to a homeostatic level.
The structure of a red blood cell is that of a disk with a indentation in the middle. It contains hemoglobin, which gives the cell its red color. Its function is to carry oxygen to the cells of the body, and carry away carbon dioxide. Hemoglobin is the protein that allows red blood cells to carry oxygen. Red blood cells are produced when the kidneys detect low oxygen levels in the blood. They create and secrete a hormone called erythropoietin, which in turn signals bone marrow to produce more red blood cells.
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Source: SOURCE: THIS WORK IS ADAPTED FROM SOPHIA AUTHOR AMANDA SODERLIND
Cells found in the blood that carry oxygen and carbon dioxide.
Another word for red blood cells.
The number of red blood cells in a microliter of blood.
A hormone secreted by the kidneys when oxygen levels in blood are too low to stimulate bone marrow to produce more red blood cells.