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What are the 5 parts of the lower respiratory system?

What are the 5 parts of the lower respiratory system?

The lower respiratory tract includes the following:

  • Voice box (larynx)
  • Windpipe (trachea)
  • Lungs.
  • Airways (bronchi and bronchioles)
  • Air sacs (alveoli)

What is included in the upper and lower respiratory tract?

The respiratory conducting passages are divided into the upper respiratory tract and the lower respiratory tract. The upper respiratory tract includes the nose, pharynx, and larynx. The lower respiratory tract consists of the trachea, bronchial tree, and lungs.

Is larynx in the lower respiratory tract?

The lower tract consists of the larynx, the trachea , the bronchi and the lungs.

What begins the lower respiratory tract?

The lower respiratory system begins below the epiglottis in the larynx or voice box (Figure 2). The trachea, or windpipe, is a cartilaginous tube extending from the larynx that provides an unobstructed path for air to reach the lungs. The trachea bifurcates into the left and right bronchi as it reaches the lungs.

What does the lower respiratory system include?

The lower respiratory system is the bottom half of the respiratory tract. It includes the trachea, or windpipe; the bronchi, which are the two branches of the trachea that penetrate the lungs; the lungs themselves; and the bronchioles and alveoli within the lungs, where gas exchange takes place.

What are lower respiratory diseases?

Lower respiratory infections are illnesses that affect the respiratory system below the throat. Any infection that affects the lungs and lower airways are considered a lower respiratory infection. The most common and well-known lower respiratory infections are pneumonia and bronchitis, as well as bronchiolitis in children.

What are the signs of upper respiratory infection?

Most upper respiratory infections are caused by viruses such as the common cold. Typical symptoms of upper respiratory infections include congestion, headache, sore throat, cough, runny nose, earache (occasionally), nasal congestion, low–grade fever, facial pressure, and sneezing.

What is the function of the upper respiratory system?

The other functions of the upper respiratory tract involve humidification and warming the air. The upper respiratory system is also involved in some non-respiratory functions such as sensation of smell and production of the voice. The smell is sensed by the epithelium of the nose.