What is the Difference between Breathing and Respiration Respiratory system All living organisms are made up of a number of cells. Each of these cells requires oxygen to break down food and obtain energy. The intake of air rich in oxygen is the first step. This is called inhalation or breathing in. The next step involves a series of chemical reactions, which help in the … [Read more...] about What is the Difference between Breathing and Respiration
Respiratory System
Mechanism Of Respiratory System
Mechanism Of Respiratory System Respiratory centre is in Medulla Oblongeta. Mechanism of breathing involves Two Phases. (A) Inspiration (B) Expiration Inspiration: Intercostal and phrenic muscles of diaphragm contract to increase thoracic cavity, therefore outside rushes inside. Expiration: Intercostal & phrenic relex muscles. Due to decrease of thoracic cavity air … [Read more...] about Mechanism Of Respiratory System
Mammalian Respiratory System
Mammalian Respiratory SystemThe mammalian respiratory system consists of nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles and alveoli. Nostril: It is also called external nares. Nasal Chamber: Nasal septum divides nasal cavity into two nasal chamber by the nasal septum. Internal nares: There are posterior opening of nasal chambers that leads into … [Read more...] about Mammalian Respiratory System