Respiratory System Flashcards
What are the organs of the respiratory system?
Nose
Pharynx
Larynx
Trachea
Bronchi
Lungs-alveoli
Where do gas exchanges between the blood and external environment occur?
Alveoli of the lungs
includes passageways from the nose to larynx
Upper respiratory tract
includes passageways from trachea to alveoli
Lower respiratory tract
Passageways to the _____ purify, humidify, and warm the incoming air.
Lungs
The only externally visible part of the respiratory system
Nose
What are the parts of the nose?
Nostrils
Nasal cavity
Nasal septum
Nostrils are also called _____.
Nares
It is the route through which air enters the nose.
Nostrils (nares)
It is the route through which air enters the nose.
Nostrils (nares)
What divides the nasal cavity?
Nostrils (nares)
Where are olfactory receptors located?
mucosa on the superior surface
The rest of the nasal cavity is lined with respiratory _____.
Mucosa
What are the functions of respiratory mucosa?
Moistens air
Traps incoming foreign particles
Enzymes in the mucus destroy bacteria chemically
They are projections from the lateral walls.
Conchae
What are the functions of the conchae?
Increase surface area
Increase air turbulence within the nasal cavity
Increased trapping of inhaled particles
What separates the nasal cavity from the oral cavity?
Palate
What are the two palates?
Hard palate and soft palate
True or False: The soft palate is anterior and supported by bone, while the hard palate is posterior and unsupported.
FALSE. Suli hahahhaa
Cavities surrounding the nasal cavity.
Paranasal sinuses
What bones surround the paranasal sinuses?
frontal, sphenoid, ethmoid, and maxillary bones
What are the functions of the paranasal sinuses?
Lighten the skull
Act as resonance chambers for speech
Produce mucus
Muscular passageway from nasal cavity to larynx
Pharynx
The pharynx is common called the ____.
Throat