MICROANATOMY

Detailed explanation-1: -Your trachea is divided into two air passages called bronchial tubes. One bronchial tube leads to your left lung, the other to your right lung. For your lungs to perform their best, your airways need to be open when you inhale and when you exhale.

Detailed explanation-2: -The respiratory tract is divided into two main parts: the upper respiratory tract, consisting of the nose, nasal cavity and the pharynx; and the lower respiratory tract, consisting of the larynx, trachea, bronchi and the lungs.

Detailed explanation-3: -The TRACHEA (windpipe) is the passage leading from your pharynx to the lungs. The RIBS are bones supporting and protecting your chest cavity. They move a small amount and help the lungs to expand and contract. The trachea divides into the two main BRONCHI (tubes), one for each lung.

Detailed explanation-4: -The nose. The nose is the only part of the respiratory system that is visible externally and is the route for air entry into the respiratory system. Air is drawn in via the nostrils or external nares and enters the large nasal cavity, which is divided into two by the nasal septum.

Detailed explanation-5: -The trachea is also lined with cilia, which sweep fluids and foreign particles out of the airway to keep them out of the lungs. Further down, the trachea divides into two tubes (left and right) called bronchi (BRAHN-kye). The bronchi connect the trachea to the lungs.