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Physiology

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Respiration

Question
19 out of 33
 

Anoxic hypoxia is because of: (LQ)



A Decreased pO2 in arterial blood

B Increased pO2 in arterial blood

C Increased pCO2 in blood

D Increased pO2 in venous blood

Ans. A Decreased pO2 in arterial blood

ANOXIC HYPOXIA

Hypoxia due to disordered pulmonary mechanisms of oxygenation. It may be due to reduced

oxygen supply, respiratory obstruction, reduced pulmonary function or inadequate

respiratory movements PO2 of arterial blood is reduced. Q

ANEMIC HYPOXIA

Hypoxia due to a decrease in hemoglobin concentration or in the number of erythrocytes in the

blood. Here pO2 is normal but there is hypoxia due to reduced oxygen carrying capacity of

blood. Q

STAGNANT HYPOXIA

Hypoxia due to insufficient peripheral circulation as occurs in cardiac failure shock arterial

spasm and thrombosis In this condition there is normal p02 and hemoglobin concentration Q

HISTOTOXIC HYPOXIA

In this kind of hypoxia Oxygen delivery to the tissues is adequate but due to action of some

toxic agent (e g cyanide) tissues are unable to use it Q

Respiration Flashcard List

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