Roman Saini is teaching live on Unacademy Plus
HUMAN PHYSIOLOGY Presented By Roman Saini
Course Structure 1. 2. 3. 4. 5. 6. 7. Human Digestive System Human Respiratory System Human Circulatory System Human Excretory System Human Skeletal System Human Neural System Human Endocrine System
2. HUMAN RESPIRATORY SYSTEM 1. 2. 3. 4. 5. 6. 7. Respiration Parts of Respiratory System Breathing Respiratory Volumes and Capacity Transport of Gases (O, and CO,) Regulation of Respiration Disorders of Respiratory System
Respiration The cells of the human body require a constant stream of oxygen to stay Oxygen (O2) is utilized by the organism to indirectly break down nutrient e Cells in organism utilize oxygen for metabolism and produce energy along alive molecules like glucose and to derive energy for performing various activities. with substances like Carbon Dioxide(CO2) which is harmful Therefore O, has to be continuously provided to the cells and CO2 produced by the cell have to be released out. This process of exchange of O from the atmosphere with CO, produced by the cells is called Breathing,commonly known as Respiration Human being have well developed respiratory system comprising two lungs e
Animals have evolved different mechanism for the transport of oxygen to the cells and for the removal of carbon dioxide from there. Mechanism of breathing vary among different groups of animals depending mainly on their habitats and levels of organization. Gills are used by most of the aquatic arthropods and molluscs. Lungs are used by the terrestrial forms of living beings for the exchange of gases Among vertebrates fishes use gills whereas reptiles, birds and mammals respire through lungs. e e Amphibians like frog can respire through their moist skin also. Mammals have a we system.
Parts of Respiratory System Respiratory System Upper Respiratory Tract Lower Respiratory Tract 1. Trachea 2. Bronchi 3. Bronchioles 4. Alveoli 5. Lungs Nasal Cavity 2. Nostrils 3. Nasopharynx Larynx Respiratory Centers-Respiratory Rhythm Centre Pneumotaxic Centre