11 public questions tagged with this topic.
Tuberculosis primarily affects the lungs, causing symptoms such as persistent cough and difficulty in breathing.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Drugs and Alcohol Abuse - Opioids Cannabinoids Cocaine Adolescence
The lungs excrete carbon dioxide, which is a byproduct of cellular respiration.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Micturition Disorders and Accessory Excretory Organs
The pulmonary artery carries deoxygenated blood from the right ventricle to the lungs for oxygenation.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Circulatory System - Comparative and Evolutionary Aspects
The pulmonary vein carries oxygenated blood from the lungs to the left atrium of the heart.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation ECG and Blood Vessels
The pulmonary vein carries oxygenated blood from the lungs to the left atrium of the heart.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation ECG and Blood Vessels
Pulmonary circulation carries deoxygenated blood from the right ventricle to the lungs and returns oxygenated blood to the left atrium.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Human Heart - Structure and Cardiac Cycle
The capillaries surrounding the alveoli facilitate the exchange of oxygen and carbon dioxide between blood and air.
Ref: NCERT Class 11 Biology Chapter 14: Breathing and Exchange of Gases Transport of Carbon Dioxide and Regulation of Respiration
The primary driving force for oxygen diffusion in the lungs is the partial pressure gradient between alveolar air and blood.
Ref: NCERT Class 11 Biology Chapter 14: Breathing and Exchange of Gases Exchange of Gases and Transport of Oxygen
Low temperature and high oxygen partial pressure favor the binding of oxygen to hemoglobin in the lungs.
Ref: NCERT Class 11 Biology Chapter 14: Breathing and Exchange of Gases Exchange of Gases and Transport of Oxygen
During forceful expiration, intercostal muscles relax, and abdominal muscles contract to push air out of the lungs.
Ref: NCERT Class 11 Biology Chapter 14: Breathing and Exchange of Gases Respiratory Organs and Human Respiratory System
Main respiratory organ in adult tetrapods is lung paired endodermal outgrowths from ventral foregut undergoing branching morphogenesis forming bronchial tree terminating in alveolar sacs in mammals, parabronchial lungs with air sacs in birds, faveolar lungs in reptiles, sac-like septate lungs in amphibians increasing diffusion surface and surfactant reducing surface tension. Ventilated by aspiration breathing using intercostal and diaphragmatic muscles creating negative intrathoracic pressure. Gills persist only in fish and amphibian larvae, skin supplement amphibians, tracheae insects, thus pulmonary dominance defines tetrapod aerial gas exchange.
Ref: Campbell Biology 12th ed. Chapter 42 Tetrapod Respiration; NCERT Class 11 Chapter 19 Breathing Organs
