Structure of the human respiratory system
The human respiratory system consists of the nose, the pharynx, the trachea, two bronchi, and two lungs, It is called also the respiratory apparatus, the ventilatory system and it is used for the process...
Tagged: Two lungs
How do your body cells get rid of the excretory materials?
The excretory materials are carbon dioxide, nitrogenous wastes, excess salts, and excess water, They are the waste materials which produced inside the cells and the body must get rid of them.
Blood circulation in circulatory system, major & minor circulation
The blood circulation Blood circulation is the path of the blood throughout the body. It can be divided into two small circulations which are minor (pulmonary) blood circulation, and major (systemic) blood circulation.