List I | List II |
A. Residual volume | I. Air volume remains in the lungs after a normal expiration |
B. Vital capacity | II. Maximum air volume a person can breathe in after a forced expiration |
C. Tidal volume | III. Air volume remains in the lungs after a forcible expiration |
D. Functional residual capacity | Air volume inspired during a normal respiration |
List I | List II |
A. Expiratory capacity | I. TV + IRV |
B. Vital capacity | II. ERV + TV + IRV |
C. Inspiratory capacity | III. TV + ERV |
D. Functional residual capacity | IV. ERV + RV |
(a) | Inspiration occurs when there is a negative pressure in the lungs with respect to atmospheric pressure. |
(b) | Lungs do not collapse between breaths and some air always remains in the lungs because there is a negative intrapleural pressure pulling at the lungs walls. |
(c) | Expiration is initiated due to the contraction of diaphragm. |
(d) | One can consciously breathe in and breathe out by moving the diaphragm alone, without moving the ribs at all. |
(e) | The strength of inspiration and expiration can be increased with the help of additional muscles in the abdomen. |
Column I | Column II | ||
a. | Residual volume | (i) | 0.5 L |
b. | Expiratory reserve volume | (ii) | 2.5-3 L |
c. | Inspiratory reserve volume | (iii) | 1-1.1 L |
d. | Tidal volume | (iv) | 1.1-1.2 L |
Statement-A: | One can breathe out air through eustachian tubes by closing both the nose and the mouth. |
Statement-B: | External inter-costal and abdominal muscles are muscles involved in inspiration under normal breathing. |