Respiratory System Flashcards
(7 cards)
Which of the following is referred to as the “guardian of the airway”?
A) Trachea
B) Epiglottis
C) Pharynx
D) Larynx
Epiglottis
The epiglottis guards the entrance of the glottis, the opening between the vocal cords.
When a person eats and swallows, the epiglottis folds to cover the entrance of the larynx. This keeps food and liquid from entering windpipe and lungs.
What is a synonym for windpipe?
A) Trachea
B) Pharynx
C) Larynx
D) Epiglottis
Trachea
The trachea, or windpipe, is a tube that connects the pharynx and larynx to the lungs and allows for the passage of air (or “wind”).
What is the common passageway for both food and air?
A) Pharynx
B) Larynx
C) Epiglottis
D) Trachea
Pharynx
The pharynx both serves the digestive ad respiratory systems. Through the nasal cavity, it receives air and through the oral cavity, the pharynx receives air, food and water. Running down the pharynx, it is connected to the digestive system at the esophagus and to the respiratory system at the larynx.
The larynx is also termed as the “voice box.” It is connected to the pharynx superiorly and to the trachea inferiorly to serve as a connection to the respiratory system. It lies at the front portion of the neck and consists of 9 cartilages.
The epiglottis is the third, unpaired cartilage of the larynx. It is a free flap that is made up of elastic cartilage and is connected to the thyroid cartilage.
The trachea is also termed as the windpipe. Superiorly, it is attached to the larynx and serves as a connection to the respiratory system. When foreign substances are dislodged in the trachea, the cough reflex may be activated.
This refers to the pressure exerted by a gas in a mixture of gases.
A) Atmospheric pressure
B) Alveolar pressure
C) Partial pressure
D) Pleural pressure
Partial pressure
Atmospheric pressure refers to the air pressure outside the body.
Alveolar pressure refers to the air pressure within the alveoli.
Partial pressure refers to the pressure exerted by a gas in a mixture of gases.
Pleural pressure refers to the pressure in the pleural cavity.
What type of pleura covers the surface of the lungs?
A) Visceral
B) Parietal
C) Pleural cavity
D) Trachea
Visceral
Visceral pleura directly covers the surface of each lung.
Parietal pleura refers to the outer membrane which covers the mediastinum, diaphragm, and inner thoracic wall.
Pleural cavity refers to a thin space located between the two pulmonary plurae.
The trachea is also termed as the windpipe. Superiorly, it is attached to the larynx and serves as a connection to the respiratory system. When foreign substances are dislodged in the trachea, the cough reflex may be activated.
refers to the pressure inside the pleural cavity.
A) Pleural pressure
B) Partial pressure
C) Alveolar pressure
D) Atmospheric pressure
Pleural pressure
Pleural pressure refers to the pressure in the pleural cavity.
Yeah
Partial pressure refers to the pressure exerted by a gas in a mixture of gases.
Alveolar pressure refers to the air pressure within the alveoli.
Atmospheric pressure refers to the air pressure outside the body.
Small air-sacs in the lungs:
A) bursa
B) axons
C) alveoli
D) bronchi
Alveoli
Choice A. Bursa is a closed sac or pocket that contains synovial fluid. It is most commonly found in areas where friction at a joint occurs.
Choice B. An axon is the main central process of a neuron. It conducts action potentials away from the cell body of the neuron.
Choice C. At the end of the bronchioles in the lungs are little sacs filled with air and look like bunches of grapes. These are the alveoli. Alveoli are attached to the respiratory bronchioles that are a division from the terminal bronchioles. They are small, air-filled chambers where gas exchange between the air and blood takes place.
Choice D. The bronchi are the main passageway that conducts air to the lungs.
