Structures of the respiratory system
Which tube splits into two bronchi.
The trachea
What is the primary gas needed by cells for energy?
Oxygen
What is the primary organ of the respiratory system?
The lungs
What habit damages lung tissues, impairs cilia function, and increases the risk of respiratory diseases
Smoking
What triggers a sneeze?
irritants such as dirt or allergens in the nasal passages.
What is the role of the larynx?
contains the vocal cords and is involved in sound production
What is the primary function of the respiratory system?
to supply oxygen to the blood and remove
carbon dioxide from the body.
What happens to air as it moves from the nose to the alveoli?
It becomes cleaner, warmer, and moister.
What happens to cilia in the presence of tar?
it hinders their ability to clear mucus and debris
What is the name of the tube that conducts air from the larynx to the bronchi leading to the lungs.
The trachea
The __________________ is a muscle that works together with the muscles in the rib to bring air in and out of the chest.
The diaphragm
In what part of the lungs does gas exchange occur?
The Alveoli
What is carbon monoxide?
a colorless, odorless gas that can be harmful when
inhaled
________________ is an inflammation of the bronchial tubes, often caused by
smoking or infections.
bronchitis
The __________________ is a muscular tube that connects the nasal cavity and mouth to the larynx and esophagus.
The pharynx
______________ help to move mucus and trapped particles out of the airways,
keeping the lungs clear
Cilia
What happens to oxygen in the alveoli?
It passes from the alveoli into the blood in small blood vessels called capillaries.
What is the function of the ribs in respiration?
protect the lungs and assist in the expansion and contraction of the chest cavity during breathing.
_________________ is a chronic lung condition that causes shortness of breath due to damage to the alveoli.
emphysema
What is the role of mucus in the respiratory system?
To trap inhaled debris, dust, and microorganisms to prevent lung infection.
What is the importance of the surface area of alveoli?
It maximizes the capacity for, and efficiency of, gas exchange (oxygen and carbon dioxide).
Why is carbon monoxide dangerous?
It binds to hemoglobin in the blood which prevents oxygen from properly binding with blood cells
Why is it better to breath the nose than through the trachea?
The mouth is not as effective in moistening and filtering air air.
What happens to cilia in the presence of tar?
it hinders their ability to clear mucus and debris
What is the function of the diaphragm during a sneeze?
The diaphragm and muscles between the ribs contract to force air out of the lungs rapidly.