Respiratory system

Bronchitis is a common respiratory illness triggered by viruses, bacteria, irritants such as smoke, and

In healthy people, mucus is transparent and clear in appearance. If you are coughing up yellow mucus

Pneumonia is an infection in one or both lung. It can be triggered by fungi, bacteria, or bacterias.

When you breathe, the thin tissues that line your lungs and chest wall, called the pleura, rub together.

You’re coughing, you’ve got a fever, and your chest feels like it’s clogged with mucus.

When you have a respiratory tract infection or a lung-related condition, your lungs produce a thick substance

What is Phlegm? As the name suggests, this is a condition where cough is connected with sputum production.

Blood in saliva might come from bleeding throughout the digestion system or respiratory system.

Coughing up blood is the spitting up of blood or bloody mucus from the lungs and throat (respiratory tract).

A pulmonary embolism is a blood clot that takes place in the lungs. What is blood clots in lungs? 

The head cold, also referred to as the cold, is generally a mild illness, however it can affect your

Bronchitis is an inflammation of the lining of your bronchial tubes, which carry air to and from your lungs.