Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Pulmonary Ventilation:Pulmonary ventilation is the process by which gasses flow between the atmosphere and lung alveoli. Air moves into the lungs when air pressure inside the lungs is less than the air pressure in the atmosphere and out of the lungs when the pressure inside the lungs is greater than the atmosphere pressure. Breathing in is called inhalation or inspiration. Just before each inhalation air pressure inside the alveoli is equal to the atmospheric pressures, 760 rnmHg, and the intrapleural pressure is 756 mmHg. With inspiration, the cavity of the thorax is enlarged as external intercostals muscles and the diaphragm contract causing a decrease in the intrapleural pressure to about 754 mmHg. The parietal pleura lining the cavity is pulled outward in all direction and the visceral pleura and lungs are pulled along with it. As the lung volume increases in this way the pressure inside the lungs i.e. 760 mmHg drops to 758 mmHg. Thus a pressure difference is established between the atmosphere and alveoli and air flows into the lungs from the atmosphere. Breathing out or exhalation (expiration) starts when the inspiratory muscles and diaphragm relaxes, the dome of the diaphragm moves up, the ribs are depressed leading to decrease in the lung volume and increase in the lung pressure (763 rnm Hg). Air flows out form the area of higher pressure to the area of lower pressure in the atmosphere. The elastic recoil of the chest wall and the lungs is due to the recoil of elastic fibers and the inward pull of surface tension due to the alveolar fluid. A thin layer of alveolar fluid coats the surface of the alveoli and exerts a force known as surface tension. Exhalation is a passive process while inhalation or inspiration is an active process.
BRONCHOSCOPY: Bronchoscopy is the passage of lighted bronchoscope into the bronchial tree. Bronchoscopy may be performed with rigid steel of flexible fiberoptic instruments.
Q. Pathophysiology of Chronic wasting disease? We all know that heart attack i.e. myocardial infarction is not the beginning but a last stage representing acute clinical manife
DISEASES OF POULTRY - Poultry birds suffer from a variety of diseases - Nutritional - Rickets Viral - Ranikhet Bact -
Use of trichomoniasis in pregnancy Trichomoniasis in pregnancy has been associated with adverse pregnancy outcomes (D Soper, Am J Obstet Gynecol 2004; 190:281). Metronidazole
Define the Functional Properties of Proteins? a) Hydration properties (dependent on protein-water interactions), which include properties like swelling, adhesion, dispersibilit
What is Radioactivity ? Radioactivity : Some isotopes, called radioisotopes, have unstable nuclei that release high energy particles or radiant energy, or both. An example
How can the age of a tree be estimated from the analysis of the rings present on a cross section of its stem? For the growth of the tree it is essential to have formation of ne
Ranikhet disease Ranikhet disease, also known in the west as Newcastle disease, is a contagious and highly fatal disease of fowls caused by a virus of the genus Rubulavirus in
For patients with end-stage heart failure, cardiac transplantation has become a promising therapy especially with the advent of immunosuppressive therapy and more careful screenin
Chromosome partitioning depends on changes in the polymerization state of bacterial proteins that are functionally analogous to what eukaryotic protein?
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd