3.4 Maley Nasal cavity + Pharynx Flashcards
What does the nasal cavity house?
heats and humidifies air. houses olfactory bulb and openings to lacrimal duct and sinuses
What are the bones of the nasal cavity?
F VIPE LMN - Frontal, Vomer, Inf Nasal concha, Palatine, Ethmoid, Lacrimal, Maxillary, Nasal
What opening is above the superior nasal concha? below? Where do they each open to?
above- sphenoethmoidal recess- sphenoidal sinus.
below- superior meatus- post. ethmoid > ethmoi air
What opening is below the middle concha and where does it open to?
middle meatus- frontal, maxillary sinus and ethmoi air
What opening is below the inferior concha and where does it open to?
inf. meatus- lacrimal duct
What pathways supply the medial and lateral walls? (internal and external carotid paths)
i. Internal carotid → ophthalmic → anterior and posterior ethmoidal → anterior septal branches
ii. External carotid → maxillary → sphenopalatine → posterior septal branches
What are the borders of the pharynx?
from behind the nasal cavity to the inferior border of C6.
Name the lymphatic areas of the pharynx and their associated tonsils
top of the nasopharynx (pharyngeal tonsils or adenoids), back of the oropharynx (palatine tonsils),
back of the tongue (lingual tonsils)
What is the retropharyngeal space?
between the constrictors and cervical vertebrae, rich in lymph nodes. Infxn can spread superiorly and inferiorly int thorax when here.
What are lymphoid tissue of the pharynx made of?
connective membranous tissue
What supplies the pharynx?
Ascending pharyngeal and superior thyroid. Some from inf thyroid off thyrocervical trunk
Innervation of Tensor and Levator Veli palatini:
Tensor V3; Levator CN10
Function of all the muscles of the soft palate is to?
assist with opening the auditory tube to equilibrate pressure between the environment and middle ear.
What are the borders of the oropharynx?
between soft palate and epiglottis
What are the borders of the laryngopharynx?
behind epiglottis as it transitions into the esophagus.
