Here is an essay on the ‘Respiration in Humans’ for class 7, 8, 9, 10, 11 and 12. Find paragraphs, long and short essays on the ‘Respiration in Humans’ especially written for school and college students. Essay on the Respiration in Humans Essay Contents: Essay on the Definition of Respiration Essay on the Forms of Respiration Essay on the Respiratory [...]
The air as it enters the lungs meets with two types of resistances: 1. Elastic Resistance 2. Non-Elastic Resistance. Type # 1. Elastic Resistance: Elastic resistance is exerted by the elastic tissue of the lung parenchyma and surface tension of intra-alveolar fluid. Elastic tissues of the lungs obey Hooke's law which means that change in volume of lungs is directly [...]
The expansion of the lungs during inspiration follows the enlargement of the thoracic cavity in all its diameters by the contraction of the respiratory muscles. These are mentioned below: 1. Diaphragm: A dome-shaped muscle separating the abdominal wall from the thoracic cavity, with vertically running fibres at the periphery and horizontally running fibres at the centre ending in the central [...]