What Aspects of the Structure of Lung Tissue Make Efficient

question 194

Multiple Choice

What aspects of the structure of lung tissue make efficient gas exchange possible?

• A) The enormous surface area of the bronchus and trachea, where the very thin-walled alveoli and equally thin-walled pulmonary capillaries make possible extremely rapid diffusion of gases between alveolar air and pulmonary capillary blood
• B) A small surface area and the respiratory membrane, where the very thin-walled alveoli and equally thin-walled pulmonary capillaries make possible lower diffusion of gases between alveolar air and pulmonary capillary blood and help retain oxygen in the body
• C) The enormous surface area and the respiratory membrane, where the very thin-walled alveoli and equally thin-walled pulmonary capillaries make possible extremely rapid diffusion of gases between alveolar air and pulmonary capillary blood
• D) A small surface area such as the pleura, where the very thin-walled alveoli and equally thin-walled pulmonary capillaries make possible extremely rapid diffusion of gases between alveolar air and pulmonary capillary blood

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Definitions:

Transfusion Reactions

Adverse reactions that may occur during or after a blood transfusion, including allergic reactions, febrile responses, and more severe complications like acute hemolytic reactions.

Hemoglobinuria

The presence of free hemoglobin in the urine; a rare condition caused by transfusion reactions, malaria, drug reactions, snake bites, or severe burns.

Myoglobinuria

The presence of myoglobin in the urine; can be caused by injured or damaged muscle tissue.

Phenylalanine

An essential amino acid that cannot be produced by the body and must be obtained from the diet, used in the biosynthesis of proteins.