Internal Respiration
*Internal Respiration
-It is the exchange of gases that takes place between the blood and the tissue cells.
-This is the opposite of what happens in the lungs.
-In this process, oxygen is unloaded and carbon dioxide is added into the blood.
-When the carbon dioxide diffuses out of tissue cells, it enters the blood and joins with water to form carbonic acid. This quickly releases bicarbonate ions.
-Most conversions of carbon dioxide actually take place inside the RBC's. Here there is a special enzyme that speeds up this reaction. Bricarbonate ions diffuse out into plasma, where they are then transported.
-At the same time, oxygen is released from hemoglobin and the oxygen diffuses quickly out of the blood to enter the tissue cells.
-As a result, blood is poorer in oxygen and richer in carbon dioxide than that leaving the lungs.
*Homeostatic Imbalance
-Impaired Oxygen Transport: Inadequate oxygen delivery to body tissues is called hypoxia. This condition is easy to recognize in fair skinned individuals because their skin and mucosae take on a bluish cast. In dark skinned individuals it is more difficult to detect hypoxia because it is only observed in the mucosae and nailbeds. Hypoxia may be the results of anemia, pulmonary disease, impaired, or blocked, blood circulation.
-Carbon Monoxide Poisoning: This is a unique type of hypoxia. Carbon monoxide is an odorless, colorless gas that competes with oxygen for a binding spot on hemoglobin. CO is so competitive that it crowds out or displaces oxygen. This is the leading cause of death from fire. It kills victims softly and quietly. This does not have characteristics like hypoxia, instead, the victim has a throbbing headache and will be confused. In rare cases, the skin becomes cherry red. Those with CO poisoning are given 100 percent oxygen until the carbon monoxide has been cleared from the body.
-It is the exchange of gases that takes place between the blood and the tissue cells.
-This is the opposite of what happens in the lungs.
-In this process, oxygen is unloaded and carbon dioxide is added into the blood.
-When the carbon dioxide diffuses out of tissue cells, it enters the blood and joins with water to form carbonic acid. This quickly releases bicarbonate ions.
-Most conversions of carbon dioxide actually take place inside the RBC's. Here there is a special enzyme that speeds up this reaction. Bricarbonate ions diffuse out into plasma, where they are then transported.
-At the same time, oxygen is released from hemoglobin and the oxygen diffuses quickly out of the blood to enter the tissue cells.
-As a result, blood is poorer in oxygen and richer in carbon dioxide than that leaving the lungs.
*Homeostatic Imbalance
-Impaired Oxygen Transport: Inadequate oxygen delivery to body tissues is called hypoxia. This condition is easy to recognize in fair skinned individuals because their skin and mucosae take on a bluish cast. In dark skinned individuals it is more difficult to detect hypoxia because it is only observed in the mucosae and nailbeds. Hypoxia may be the results of anemia, pulmonary disease, impaired, or blocked, blood circulation.
-Carbon Monoxide Poisoning: This is a unique type of hypoxia. Carbon monoxide is an odorless, colorless gas that competes with oxygen for a binding spot on hemoglobin. CO is so competitive that it crowds out or displaces oxygen. This is the leading cause of death from fire. It kills victims softly and quietly. This does not have characteristics like hypoxia, instead, the victim has a throbbing headache and will be confused. In rare cases, the skin becomes cherry red. Those with CO poisoning are given 100 percent oxygen until the carbon monoxide has been cleared from the body.