Which statement defines total lung capacity?
It is the air in the lungs after maximal inhalation.
It is the quantity of air that a person can move into or out of the lungs.
It is the amount of air that remains in the lungs after a normal tidal expiration.
It is the maximum volume of air that can be exhaled from the lungs after maximum inhalation.
The Correct Answer is A
A. It is the air in the lungs after maximal inhalation: Total lung capacity (TLC) refers to the total amount of air the lungs can hold after maximum inhalation.
B. It is the quantity of air that a person can move into or out of the lungs: This defines vital capacity, not total lung capacity.
C. It is the amount of air that remains in the lungs after a normal tidal expiration: This describes functional residual capacity, not TLC.
D. It is the maximum volume of air that can be exhaled from the lungs after maximum inhalation: This is the definition of vital capacity (VC), not total lung capacity.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Liver: The liver plays a role in detoxification and metabolism but is not involved in lymphocyte production.
B. Stomach: The stomach is part of the digestive system, not the immune system.
C. Small Intestine: The small intestine is involved in nutrient absorption and contains some lymphoid tissue (Peyer's patches) but is not the main site of lymphocyte production.
D. Thymus: The thymus is the organ where T-lymphocytes mature and are essential for the immune response.
Correct Answer is A
Explanation
A. Marrow: The hollow spaces within long bones contain bone marrow, which is responsible for the production of blood cells.
B. Natural killer cells: Natural killer cells are a type of lymphocyte found in the bloodstream and tissues but not directly within the hollow spaces of bones.
C. Enzymes: Enzymes are not found specifically in the hollow spaces of long bones; they are present throughout the body and are involved in metabolic processes.
D. Plasma cells: Plasma cells are derived from B cells and are primarily located in lymphatic tissue and bone marrow but do not fill the hollow spaces of long bones.
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