A ppt on lung volumes and capacities::::

A Ppt on lung volume & capacities of an healthy individuals

1. Chhatrapati Shahu Ji Maharaj University , KANPUR ASSIGNMENT LUNG VOLUMES AND CAPACITIES SESSION: 2025-2026 SCHOOL OF HEALTH SCIENCES SUBJECT: REVIEW OF BASICS THERAPEUTICS Submitted to: DR. KHUSHBOO ANJUM (ASSISTANT PROFESSOR) SCHOOL OF HEALTH SCIENCES Submitted by: MAAZ KHAN MPT(NEURO) SCHOOL OF HEALTH SCIENCES

2. INTRODUCTION Lung volumes and capacities are essential measurements in respiratory physiology that help assess lung function and diagnose respiratory diseases. Understanding these measurements is crucial for healthcare professionals to evaluate respiratory health and develop effective treatment plans.

3. INTRODUCTION Lung volume & lung capacity depends on the age , gender , morphism of an adult & changes when these are changed. There is reduction in the lung capacities when the person is having any type of restrictive or obstructive lung disease

4. Lung volume and Capacities chart A lung volume and capacities chart is a graphical representation of the different lung volumes and capacities, illustrating the relationships between them.

5. Lung Volume Lung volumes are measurements of the amount of air in the lungs at different stages of breathing. Understanding lung volumes is essential for assessing respiratory function and diagnosing lung diseases.

6. Types of Lung Volumes Tidal Volume: TV The amount of air inhaled and exhaled during normal breathing. About 500 mL

7. Types of Lung Volumes Inspiratory Reserve Volume: IRV The maximum amount of air that can be inhaled beyond TV. Approx.3000mL

8. Types of Lung Volumes Expiratory Reserve Volume: ERV The maximum amount of air that can be exhaled beyond TV. Approx.1000mL

9. Residual Volume: RV The amount of air remaining in the lungs after maximum exhalation. Approx.1200mL This is the only lung volume which cannot be measured with a spirometer. TYPES OF LUNG VOLUMES

10. Lung Capacities Lung capacities are measurements that represent the sum of two or more lung volumes. They provide valuable information about lung function and respiratory health.

11. Types of Lung Capacities Total Lung Capacity: TLC The total amount of air in the lungs after maximum inhalation. Approx.6000mL Called a capacity because it is the sum of the 4 basic lung volumes TLC= RV+IRV+TV+ERV

12. Types of Lung Capacities Vital Capacity: VC The maximum amount of air that can be exhaled after maximum inhalation. Approx.4500mL Called a capacity because it is the sum of inspiratory reserve volume, tidal volume and expiratory reserve volume. VC= IRV+TV+ERV = TLC - RV

13. Types of Lung Capacities Functional Residual Capacity: FRC The amount of air remaining in the lung at the end of a normal expiration. Approx.2200mL The sum of residual volume and expiratory reserve volume. FRC= RV+ERV

14. Types of Lung Capacities Inspiratory Capacity: IC Maximum amount of air that can be inhaled from end expiratory position. Approx.3500mL This sum of Tidal volume and inspiratory reserve volume IC= TV+IRV

15. Respiratory Diseases Restrictive Disease: Makes it more difficult to get air in to the lungs. They “restrict” inspiration. Decreased VC; Decreased TLC, RV, FRC Includes: Fibrosis Sarcoidosis Muscular diseases Chest wall deformities

16. Respiratory Diseases Obstructive Disease Make it more difficult to get air out of the lungs. Decrease VC; Increased TLC, RV, and FRC Includes: Emphysema Chronic bronchitis Asthma

17. THANK YOU