The vital capacity is equal to the sum of the:
inspiratory capacity and the residual volume.
inspiratory reserve volume, tidal volume, and expiratory reserve volume.
tidal volume, residual volume, and expiratory reserve volume.
inspiratory reserve volume, tidal volume, and inspiratory capacity.
The Correct Answer is B
A. inspiratory capacity and the residual volume: Residual volume cannot be exhaled and is therefore not part of vital capacity.
B. inspiratory reserve volume, tidal volume, and expiratory reserve volume: Vital Capacity (VC) is the maximum amount of air a person can expel from the lungs after maximum inhalation.
C. tidal volume, residual volume, and expiratory reserve volume: This is incorrect because it includes residual volume (air that stays in the lungs) and excludes inspiratory reserve.
D. inspiratory reserve volume, tidal volume, and inspiratory capacity: This is incorrect because inspiratory capacity already includes tidal volume, making the calculation redundant and incomplete.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. sensory perception: Sensation is carried by the dorsal (posterior) root. If only the ventral root is damaged, sensation remains intact.
B. willed movement only: While willed movement is lost because motor commands can't reach the muscle, this is not the only thing lost.
C. reflex activity: The ventral root is the "exit" for all motor commands. Without it, both voluntary movement and involuntary motor reflexes (like the knee-jerk) are impossible in that specific area.
D. both reflex activity and sensation: Sensation is unaffected by ventral root damage.
Correct Answer is D
Explanation
A. osteoclasts: These are cells that break down bone tissue, not create blood cells.
B. osteocytes: These are mature bone cells that maintain the bone matrix.
C. yellow bone marrow: This consists mostly of adipose (fat) tissue and does not normally produce blood cells.
D. red bone marrow: This is the myeloid tissue where the production of all types of blood cells (RBCs, WBCs, and platelets) occurs.
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