General info and nasal cavity Flashcards
What are the other “duties” of the respiratory system
- pH regulation
- receptors for small
- filters air
- produce sounds/speech
- heat exchange
Differentiate between the upper and lower respiratory systems
upper= pharynx up -> so nose, nasal cavity, pharynx and associated structures
lower= larynx down -> larynx, trachea, bronchi, and lungs
Define the conducting zone of the respiratory system and what areas of the body belong to it
Where the filtration, warming, and moistening of air occurs
-nose/nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles and terminal bronchioles
What bones form the bony framework of the nose
frontal, nasal, and maxillae
What forms the cartilaginous framework of the nose
septal nose, lateral nose, and alar cartilage
Define external nares
openings of the nose seen on the face
Define nasal cavity
large space that lies inferior to the nasal bones but superior to the maxillae
What connects the nasal cavity to the pharynx
the internal nares
What are the internal nares also known as
choanae
What drains into the nasal cavity
the paranasal (maxillary, frontal, sphenoid, ethmoid) sinuses and the nasolacrimal ducts
What bones make up the nasal cavity
The roof=ethmoid bone
The floor =the palatine bones and palatine processes of the maxillae
The lateral walls= ethmoid bone, maxillae, lacrimal, palatine
Define nasal vestibule
anterior portion of the nasal cavity surrounded by cartilage just inside the nostrils
What forms the nasal septum
the perpendicular plate of the ethmoid, the vomer, and quadrangle (septal) cartilage
What type of cartilage forms the majority of the nasal septum
hyaline cartilage
When some one is punched in the nose and causes a deviated septum where does it usually occur
the junction of the vomer and the quadrangle (septal) cartilage
