Lecture 9 Flashcards
What is the conducting zone
the nose, nasal cavity, larynx, trachea, bronchial tree
What are the functions of the conducting zone
allows air while away and asleep
warms and filters air
conducts speech
What is midline of the nasal cavity?
nasal septum
What is superior line of the nasal cavity?
cribriform plate
What is the inferior line of the nasal cavity?
hard and soft plate
What is lateral line of the nasal cavity?
3 conchae, each with meaatus below
What lines the nasal cavity
respiratory epithelium
What epithelial cells are in the nasal cavity
columnar epithelium with cilia
what cells in the nasal cavity secrete mucus
mucous cellos
what cells in the nasal cavity secret a watery substance with digestive enzymes
serous cells
what cells in the nasal cavity are an extra cellular matrix for epithelium
basal lamina
what cells in the nasal cavity act as a supporting system for epithelium
lamina propia
___________ is the 6 inch skeletal muscle tube connecting nasal cavity and mouth to larynx and esophagus
pharynx
_____________- serves only for air and food passage, posterior to nasal cavity, auditory tube, lined with respiratory type epithelium
nasopharynx
_______________ serves for air and food passage , posterior to oral cavity, extends from soft palate to epeiglottis
oropharynx
during swallowing _______________ moves superiorly to keep food out of nasal cavity
soft palate
The epithelium in the eorropharynx is different from columnar eepithelium it is now ______________
stratified squamous epithelium
__________________ framework of cartilage suspended from the hyoid bone
larynx
What are the 3 functions of the larynx
- sound production
- another airway
- switching mechanism food/air
_____________ is inferior to mandible in anterior part of jaw, is a c shaped bone attached to tongue, neck muscles move it up and down
hyoid bone
__________ is c shaped cartilage seen externally as an Adams apple and is attached to the hyoid bone by the ethyrohyoid bone. Large in males after puberty
thyroid cartilage
ring shaped cartilage, anchored to thyroid cartilage by crcothyroid membrane
cricoid cartilage
__________ spoon shaped elastic cartilage. Stalk attached anterior thyroid cartilage, hyoid bone, and base of the tongue
epiglottis