The lower respiratory system, or lower respiratory tract, consists of the trachea, the bronchi and bronchioles, and the alveoli , which make up the lungs. These structures pull in air from the upper respiratory system, absorb the oxygen, and release carbon dioxide in exchange.
What are the 5 parts of the lower respiratory system?
- Voice box (larynx)
- Windpipe (trachea)
- Lungs.
- Airways (bronchi and bronchioles)
- Air sacs (alveoli)
Which of the following organ is not part of the lower respiratory system?
Which of the following organs is not part of the lower respiratory system? upper respiratory tract . You just studied 155 terms!
Which of the following is not a part of respiratory system?
Which of the following is NOT part of the respiratory (breathing) system? trachea .
What is the difference between the upper and lower respiratory system?
The upper respiratory tract includes the nose, pharynx, and larynx . The lower respiratory tract consists of the trachea, bronchial tree, and lungs. These tracts open to the outside and are lined with mucous membranes. In some regions, the membrane has hairs that help filter the air.
What is a lower respiratory illness?
Lower respiratory tract infections are any infections in the lungs or below the voice box. These include pneumonia, bronchitis, and tuberculosis . A lower respiratory tract infection can affect the airways, such as with bronchitis, or the air sacs at the end of the airways, as in the case of pneumonia.
How does the lower respiratory tract develop?
Development of the lower respiratory tract begins on day 22 and continues to form the trachea, lungs, bronchi, and alveoli . The process divides into five stages: embryonic, pseudoglandular, canalicular, saccular, and alveolar stage.
Where is the lower respiratory tract located?
Lower respiratory tract: Composed of the trachea, the lungs, and all segments of the bronchial tree (including the alveoli), the organs of the lower respiratory tract are located inside the chest cavity . Trachea: Located just below the larynx, the trachea is the main airway to the lungs.
Where does the lower respiratory system begin?
The lower tract consists of the larynx, the trachea , the bronchi and the lungs. The trachea, which begins at the edge of the larynx , divides into two bronchi and continues into the lungs. The bronchi divide into smaller bronchioles, which branch in the lungs forming passageways for air.
How does the respiratory system work with the circulatory system?
The respiratory system works with the circulatory system to provide this oxygen and to remove the waste products of metabolism . It also helps to regulate pH of the blood. Respiration is the sequence of events that results in the exchange of oxygen and carbon dioxide between the atmosphere and the body cells.
What is respiration the process of?
Respiration is a chemical reaction that happens in all living cells, including plant cells and animal cells. It is the way that energy is released from glucose so that all the other chemical processes needed for life can happen. Do not confuse respiration with breathing (which is properly called ventilation).
What are the two main requirements for respiration?
- the structures through which gas exchange occurs must be thin so the diffusion can occur easily.
- this membrane must be kept moist. ...
- to ensure enough exchange there must be a rich blood supply present ( 760 square feet)
Is epiglottis upper or lower respiratory?
Included in the upper respiratory tract are the Nostrils, Nasal Cavities, Pharynx, Epiglottis, and the Larynx. The lower respiratory tract consists of the Trachea, Bronchi, Bronchioles, and the Lungs.
What is normal expiration?
The process of normal expiration is passive , meaning that energy is not required to push air out of the lungs. Instead, the elasticity of the lung tissue causes the lung to recoil, as the diaphragm and intercostal muscles relax following inspiration. ... As the diaphragm relaxes, air passively leaves the lungs.
What is the main function of lungs in a human body?
Lung Health & Diseases
Your lungs are part of the respiratory system, a group of organs and tissues that work together to help you breathe. The respiratory system's main job is to move fresh air into your body while removing waste gases .
What are the signs of a lower respiratory infection?
- Congestion or runny nose.
- Dry cough.
- Sore throat.
- Low-grade fever.
- Mild headache.
