Consider the following statements regarding Tidal Volume (TV):
I. Volume of air inspired or expired during a normal respiration. II. Value is approximately 500 mL. III. A healthy man can inspire or expire approximately 6000 to 8000 mL of air per minute. IV. Value is approximately 2500 to 3000 mL per breath.
Statements I, II, and III are correct: TV is approximately 500 mL per breath, translating to 6000-8000 mL/min in a healthy man. Statement IV is incorrect because 2500-3000 mL is the Inspiratory Reserve Volume (IRV), not TV.
Question 42 of 100
📘 CLASS XI
Analyze the statements regarding Inspiratory Reserve Volume (IRV):
I. Additional volume of air a person can inspire by a forcible inspiration. II. Averages 2500 mL to 3000 mL. III. Averages 1000 mL to 1100 mL. IV. Represents volume of air remaining in lungs after forced expiration.
Statements I and II are correct: IRV is the forcible inspiration volume averaging 2500-3000 mL. Statement III is incorrect because 1000-1100 mL is ERV. Statement IV is incorrect because air remaining after forced expiration is Residual Volume (RV).
Question 43 of 100
📘 CLASS XI
Examine the statements regarding Expiratory Reserve Volume (ERV):
I. Additional volume of air a person can expire by a forcible expiration. II. Averages 1000 mL to 1100 mL. III. Averages 500 mL. IV. Combined with Tidal Volume gives Expiratory Capacity.
Statements I, II, and IV are correct: ERV is forcible expiration volume averaging 1000-1100 mL, and TV + ERV = Expiratory Capacity (EC). Statement III is incorrect because 500 mL is TV.
Question 44 of 100
📘 CLASS XI
Consider the following statements regarding Residual Volume (RV):
I. Volume of air remaining in the lungs even after a forcible expiration. II. Averages 1100 mL to 1200 mL. III. Can be directly measured by a simple spirometer. IV. Included in Functional Residual Capacity (FRC) and Total Lung Capacity (TLC).
Statements I, II, and IV are correct: RV is air remaining after forced expiration (1100-1200 mL) and is part of FRC (ERV + RV) and TLC (VC + RV). Statement III is incorrect because RV cannot be measured directly by simple spirometry as it never leaves the lungs.
Question 45 of 100
📘 CLASS XI
Regarding Inspiratory Capacity (IC), analyze the following statements:
I. Total volume of air a person can inspire after a normal expiration. II. Includes Tidal Volume and Inspiratory Reserve Volume (TV + IRV). III. Includes ERV + RV. IV. Value equals approximately 3000 to 3500 mL.
Statements I, II, and IV are correct: IC is total volume inspired after normal expiration, equal to TV + IRV (approximately 3000-3500 mL). Statement III is incorrect because ERV + RV is Functional Residual Capacity (FRC).
Question 46 of 100
📘 CLASS XI
Regarding Expiratory Capacity (EC), consider the following statements:
I. Total volume of air a person can expire after a normal inspiration. II. Includes Tidal Volume and Expiratory Reserve Volume (TV + ERV). III. Includes IRV + RV. IV. Value equals approximately 1500 to 1600 mL.
Statements I, II, and IV are correct: EC is total volume expired after normal inspiration, equal to TV + ERV (approximately 1500-1600 mL). Statement III is incorrect because EC is TV + ERV, not IRV + RV.
Question 47 of 100
📘 CLASS XI
Examine the statements regarding Functional Residual Capacity (FRC):
I. Volume of air that will remain in the lungs after a normal expiration. II. Includes Expiratory Reserve Volume and Residual Volume (ERV + RV). III. Value equals approximately 2100 to 2300 mL. IV. Includes Tidal Volume and Inspiratory Reserve Volume (TV + IRV).
Statements I, II, and III are correct: FRC is the volume remaining in the lungs after a normal expiration and equals ERV + RV (approximately 2100-2300 mL). Statement IV is incorrect because TV + IRV constitutes Inspiratory Capacity (IC), not Functional Residual Capacity (FRC).
Question 48 of 100
📘 CLASS XI
Consider the following statements regarding Vital Capacity (VC):
I. Maximum volume of air a person can breathe in after a forced expiration. II. Maximum volume of air a person can breathe out after a forced inspiration. III. Includes ERV, TV, and IRV. IV. Includes Residual Volume (RV).
Statements I, II, and III are correct: Vital Capacity is the maximum volume of air a person can breathe in after forced expiration or breathe out after forced inspiration, equal to ERV + TV + IRV. Statement IV is incorrect because VC excludes Residual Volume (RV).
Question 49 of 100
📘 CLASS XI
Regarding Total Lung Capacity (TLC), analyze the following statements:
I. Total volume of air accommodated in the lungs at the end of a forced inspiration. II. Includes RV, ERV, TV, and IRV. III. Equals Vital Capacity + Residual Volume (VC + RV). IV. Equals Inspiratory Capacity + Expiratory Capacity.
Statements I, II, and III are correct: TLC is the total volume accommodated in the lungs at the end of forced inspiration, equal to RV + ERV + TV + IRV or VC + RV. Statement IV is incorrect because IC + EC counts TV twice and omits RV.
Question 50 of 100
📘 CLASS XI
Match the respiratory capacity and volume definition combinations correctly:
I. IC = TV + IRV II. EC = TV + ERV III. FRC = ERV + RV IV. VC = ERV + TV + IRV
All four relationships are accurate mathematical derivations of pulmonary capacities from respiratory volumes.
