functions of the human respiratory system

• function of the nose

  one of the primary sources of the intake of air in the body. vellus hairs in the nose are used as a filter for the air to dispose of any dust or unwanted substances.
• function of the pharynx

  directs airflow from the nose through the larynx to the lungs. contains tissue called epiglottis that prevents food from going down the larynx.
• function of the larynx

  protects the lower respiratory tract from aspirating food into the trachea. contains vocal chords that allow us to make noise
• function of the trachea


  passageway where air is taken to the lungs
• function of the lungs

  allows oxygen to be taken into the body while also lettin the body get rid of carbon dioxide in the air breathed out.
• function of the bronchi

  carry air to and from the lungs
• function of the bronchioles


  to deliver air to a diffuse network of alveoli in the lungs
• function of the alveoli


  the location of gas exchange of oxygen and carbon dioxide in the human respiratory system