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The consequence of hypoxia is entirely dependent on its intensity, duration, and also dependent on the age, gender, and health status of the victim. Our brain uses 20% of the oxygen we breathe, so I believe that the consequences of a prolonged and intense hypoxia may cause irreversible brain cells' damage, thus leading to a fatal outcome.
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∙ 11y ago
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What is cell injury and cell death?
Series of pathologic changes due to excessive stress when adaptations are not possible.
What happens when a person has sickle cell anemia?
sickle cell anemia is releated with RBC . RBC will change in size ( microcytic ) and shap will change (sickling shap) that are cause in blokers vascular > then cause hypoxia in some organes that is cause tachycardia and shortness breath some time palor
What complex facilitator proteins that may be released into the blood stream following cell injury or death?
hemoglobin
Why is cyanide a universal poison effective in all organisms with mitochondria?
Cyanide prevents Oxygen from attaching to the Hemoglobin in blood. Even though the person is breathing they are not getting adequate perfusion to the cells. This leads to Hypoxia and eventually cell death ultimatelyorgan failure and patient death.
What causes cell walls to swell?
Swelling of the cells can occur due to cellular hypoxia which damages the sodium-potassium membrane pump. Cellular swelling is the first symptom of almost all types of injuries to cells.
What is the difference between hypoxia and ischemia?
simply, Hypoxia is less oxygen supply to cell tissues, while the Ischemia is less blood supply to cell issues.
What is cell injury and cell death?
Series of pathologic changes due to excessive stress when adaptations are not possible.
What is the difference between necrosis and ischemia?
necrosis is death of cells with underlying/ or death of cells that cause inflammation. necrosis has to have an underlying injury. ischemia is decreased blood supply to tissues/ cells due to obstruction/ constriction of vasculature - indeed, this is an injury, and can lead to necrosis of cells if not resolved quickly! Note that apoptosis is programmed cell death - i.e. nucleus control is involved, and there is no inflammation - it is clean cell death! this is awesome.
What is cellular damage?
Damage at the cellular level - such as damage to mitochondria or enzymes, damage to the DNA or damage to the cell membrane. If the damage is serious enough, this will lead to either apoptosis (programmed, controlled cell-death), or necrosis (spontaneous, unplanned death).
What is the medical term meaning cell death due to tissue injury?
necrosis
What happens when a person has sickle cell anemia?
sickle cell anemia is releated with RBC . RBC will change in size ( microcytic ) and shap will change (sickling shap) that are cause in blokers vascular > then cause hypoxia in some organes that is cause tachycardia and shortness breath some time palor
Hypoxia stimulates kidney cells to release?
Hypoxia stimulates kidney cells to release erythropoietin, which is a hormone that regulates red blood cell production. Hypoxia is a condition where a part of the body or brain is not getting sufficient oxygen. When this condition occurs, there is an increase red blood cell production.
What causes Hypoxia and what can be done to fix it?
1. too little oxygen in the inhaled air 2. inadequate ventilation (=the chest muscles and diaphragm moving air in and out of the lungs) 3. ventilation/perfusion (=blood flow) mismatch 4. Shunting (venous, unoxygenated blood flows through completely unventilated areas of the lung and mixes with oxygenated blood from functional areas of the lung going into the body - a severe form of no. 3, which doesn't improve much by giving oxygen) 5. inadequent diffusion of oxygen and carbon dioxide across the membrane between the air-filled alveoli and the blood (as in severe pneumonia or pulmonary edema) (6. "venous admixure effect" does not cause, but does worsen hypoxia - when the blood flowing into the lungs contains too much carbon dioxide (CO2) for the lungs to clear, as in acute heart failure or septic shock)
What complex facilitator proteins that may be released into the blood stream following cell injury or death?
hemoglobin
Does brain trauma injury produce necrosis or apoptosis brain cell damage?
Brain trauma can lead to cell death, necrosis. Apoptosis is planned cell death, like under fetal development, so never leads to this option.
Anything that prevents ATP formation will most likely?
results in the cell death
Why is cyanide a universal poison effective in all organisms with mitochondria?
Cyanide prevents Oxygen from attaching to the Hemoglobin in blood. Even though the person is breathing they are not getting adequate perfusion to the cells. This leads to Hypoxia and eventually cell death ultimatelyorgan failure and patient death.
