Distinguish between irv and erv

Expiratory reserve volume is the amount of extra air above normal that you exhale during a forceful breath out. ERV is part of the data gathered in pulmonary function tests used to diagnose restrictive pulmonary diseases and obstructive lung diseases. Ask a medical professional for a definition of expiratory reserve volume (ERV) and they’ll offer something along the lines of: “The extra volume of air that can be expired from the lungs with determined effort following a normal tidal volume expiration.” Let’s make that easier to understand. Picture yourself sitting normally and breathing as you do when you are not exerting yourself or After you breathe out, try to exhale more until you are unable to breathe out any more air. The amount of air you can force out after a normal breath (think about blowing up a balloon) is your expiratory reserve volume. You can tap into this reserve volume when you exercise and your tidal volume increases. To sum up: Your expiratory reserve volume is the amount of extra air — above a The average ERV volume is about 1100 mL in males and 800 mL in females. Respiratory volumes are the amount of air inhaled, exhaled, and stored in your lungs. Along with expiratory reserve volume, some terms that are often part of a ventilatory • Tidal volume. The amount of air you typically breathe into your • Inspiratory reserve volume. The amount of extra air inhaled — above tidal volume — during a forceful breath in. When you exercise, you have a reserve volume ...

\( \newcommand\) • • • • • • Lung volumes measure the amount of air for a specific function, while lung capacities are the sum of two or more volumes. Key Points • The lung volumes that can be measured using a spirometer include tidal volume (TV), expiratory reserve volume (ERV), and inspiratory reserve volume (IRV). • Residual volume (RV) is a lung volume representing the amount of air left in the lungs after a forced exhalation; this volume cannot be measured, only calculated. • The lung capacities that can be calculated include vital capacity (ERV+TV+IRV), inspiratory capacity (TV+IRV), functional residual capacity (ERV+RV), and total lung capacity (RV+ERV+TV+IRV). Lung Volumes and Capacities Different animals exhibit different lung capacities based on their activities. For example, cheetahs have evolved a much higher lung capacity than humans in order to provide oxygen to all the muscles in the body, allowing them to run very fast. Elephants also have a high lung capacity due to their large body and their need to take up oxygen in accordance with their body size. Human lung size is determined by genetics, gender, and height. At maximal capacity, an average lung can hold almost six liters of air; however, lungs do not usually operate at maximal capacity. Air in the lungs is measured in terms of lung volumes and lung capacities. Volume measures the amount of air for one function (such as inhalation or exhalation) and capacity is any two or more volumes (for example, how...

Inspiratory reserve volume (IRV) Expiratory reserve volume (ERV) 1 It is the maximum volume of air that can be inhaled after a normal inspiration It is the maximum volume of air that can be exhaled after a normal expiration 2 It is about 2500 – 3500 mL in the human lungs It is about 1000 – 1100 mL in the human lungs.

IRV ERV It is the Inspiratory Reserve Volume It is the Expiratory Reserve Volume It is the maximum volume of air that can be inhaled after a normal inspiration It is the maximum volume of air that can be exhaled after a normal expiration The normal value is between 2500 – 3500 mL The normal value is between 1000 – 1500 mL B) Difference between IC and EC: IC EC Inspiratory Capacity Expiratory Capacity It is the volume of air that can be inhaled after a normal expiration It is the volume of air that can be exhaled after a normal inspiration It is the sum of the Tidal Volume and Inspiratory Reserve Volume. IC = TV + IRV It is the sum of Tidal Volume and expiratory reserve volume. EC = TV + ERV The normal value is 3500 mL The normal value is 800 – 1100 mL VC TLC Vital Capacity Total Lung Capacity It is the maximum value of air that can be exhaled after a maximum inspiration It is the volume of air in the lungs after a maximum inspiration It is the sum of the IC and ERV It is the sum of the IC, ERV, and RV The normal value is 4000 mL The normal value is about 5000 – 6000 mL Note: It is an apparatus for measuring the volume of air inspired and expired by the lungs. It measures ventilation, which is the movement of air into and out of the lungs. The ventilation-perfusion ratio is another important part of PFT.

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1 An Introduction to the Human Body • Introduction • 1.1 Overview of Anatomy and Physiology • 1.2 Structural Organization of the Human Body • 1.3 Functions of Human Life • 1.4 Requirements for Human Life • 1.5 Homeostasis • 1.6 Anatomical Terminology • 1.7 Medical Imaging • Key Terms • Chapter Review • Interactive Link Questions • Review Questions • Critical Thinking Questions • 2 The Chemical Level of Organization • Introduction • 2.1 Elements and Atoms: The Building Blocks of Matter • 2.2 Chemical Bonds • 2.3 Chemical Reactions • 2.4 Inorganic Compounds Essential to Human Functioning • 2.5 Organic Compounds Essential to Human Functioning • Key Terms • Chapter Review • Interactive Link Questions • Review Questions • Critical Thinking Questions • 3 The Cellular Level of Organization • Introduction • 3.1 The Cell Membrane • 3.2 The Cytoplasm and Cellular Organelles • 3.3 The Nucleus and DNA Replication • 3.4 Protein Synthesis • 3.5 Cell Growth and Division • 3.6 Cellular Differentiation • Key Terms • Chapter Review • Interactive Link Questions • Review Questions • Critical Thinking Questions • 4 The Tissue Level of Organization • Introduction • 4.1 Types of Tissues • 4.2 Epithelial Tissue • 4.3 Connective Tissue Supports and Protects • 4.4 Muscle Tissue and Motion • 4.5 Nervous Tissue Mediates Perception and Response • 4.6 Tissue Injury and Aging • Key Terms • Chapter Review • Interactive Link Questions • Review Questions • Critical Thinking Questions • 5 The Integumentary ...

Answer (a) Inspiratory reserve volume (IRV) Expiratory reserve volume (ERV) 1. It is the maximum volume of air that can be inhaled after a normal inspiration. 2. It is about 2500 – 3500 mL in the human lungs. 1. It is the maximum volume of air that can be exhaled after a normal expiration. 2. It is about 1000 – 1500 mL in the human lungs. (b) Inspiratory capacity (IC) Expiratory capacity (EC) 1. It is the volume of air that can be inhaled after a normal expiration. 2. It includes tidal volume and inspiratory reserve volume. IC = TV + IRV 1. It is the volume of air that can be exhaled after a normal inspiration. 2. It includes tidal volume and expiratory reserve volume. EC = TV + ERV (c) Vital capacity (VC) Total lung capacity (TLC) 1. It is the maximum volume of air that can be exhaled after a maximum inspiration. It includes IC and ERV. 2. It is about 4000 mL in the human lungs. 1. It is the volume of air in the lungs after maximum inspiration. It includes IC, ERV, and residual volume. 2. It is about 5000 – 6000 mL in the human lungs. Recently Viewed Questions of Class 11 Biology • Q:- • Q:- • Q:- • Q:- (a) atlas/axis (b) carpal/metacarpal of thumb (c) between phalanges (d) femur/acetabulum (e) between cranial bones (f) between pubic bones in the pelvic girdle • Q:- How do you distinguish between a skeletal muscle and a cardiac muscle? • Q:- • Q:- • Q:- • Q:- • Q:- Multicellular organisms have division of labour. Explain.

(a) Inspiratory reserve volume (IRV) Expiratory reserve volume (ERV) 1. It is the maximum volume of air that can be inhaled after a normal inspiration. 1. It is the maximum volume of air that can be exhaled after a normal expiration. 2. It is about 2500 – 3500 mL in the human lungs. 2. It is about 1000 – 1100 mL in the human lungs. (b) Vital capacity (VC) Total lung capacity (TLC) 1. It is the maximum volume of air that can be exhaled after a maximum inspiration. It includes IC and ERV. 1. It is the volume of air in the lungs after maximum inspiration. It includes IC, ERV, and residual volume. 2. It is about 4000 mL in the human lungs. 2. It is about 5000 – 6000 mL in the human lungs.

Answer (a) Inspiratory reserve volume (IRV) Expiratory reserve volume (ERV) 1. It is the maximum volume of air that can be inhaled after a normal inspiration. 2. It is about 2500 – 3500 mL in the human lungs. 1. It is the maximum volume of air that can be exhaled after a normal expiration. 2. It is about 1000 – 1500 mL in the human lungs. (b) Inspiratory capacity (IC) Expiratory capacity (EC) 1. It is the volume of air that can be inhaled after a normal expiration. 2. It includes tidal volume and inspiratory reserve volume. IC = TV + IRV 1. It is the volume of air that can be exhaled after a normal inspiration. 2. It includes tidal volume and expiratory reserve volume. EC = TV + ERV (c) Vital capacity (VC) Total lung capacity (TLC) 1. It is the maximum volume of air that can be exhaled after a maximum inspiration. It includes IC and ERV. 2. It is about 4000 mL in the human lungs. 1. It is the volume of air in the lungs after maximum inspiration. It includes IC, ERV, and residual volume. 2. It is about 5000 – 6000 mL in the human lungs. Recently Viewed Questions of Class 11 Biology • Q:- • Q:- • Q:- • Q:- Mention the ploidy of the following: protonemal cell of a moss; primary endosperm nucleus in dicot, leaf cell of a moss; prothallus cell of a fern; gemma cell in Marchantia; meristem cell of monocot, ovum of a liverwort, and zygote of a fern. • Q:- • Q:- • Q:- • Q:- (a) Neuron (b) Brain (c) Eye (d) Ear • Q:- • Q:-