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BIO202-CH22-Nose-thr
BIO202 - Ch 22 - Nose & Throat - Marieb/Hoehn - RioSalado - AZ
Question | Answer |
---|---|
The nasal vestibule is lined with __. | skin containing sebaceous & sweat glands & hair follicles (vibrissae). |
Nasal cavity lined w/what 2 mucous membranes. | Olfactory (small receptors) & respiratory (pseudostratified) columnar ciliated & goblet cells). |
Serous cells in respiratory mucosa secrete? | Watery fluid w/enzymes including lysozyme & defensins. |
Why does nose run when cold outside? | The cilia in mucus membrane become sluggish & don't conduct mucus down throat. |
The curved conchae __. | greatly increase mucosal surface area exposed to air & enhance air turbulance in the cavity. |
Few particles larger than __ nanometers make it past nasal cavity. | 6 |
What reclaims heat & moisture during exhalation? | Conchae & nasal mucosa |
rhinitis | Inflammation of nasal mucosa - "runny nose" |
The pharynx is commonly called? | The throat |
3 regions of pharynx | nasopharynx, oropharynx, & laryngopharynx |
Nasopharynx serves only as __. | an air passageway - uvula closes off to prevent food from entering - continuous w/nasal cavity. |
Swollen adnoids block the __. | nasopharynx |
The tubal tonsils help protect __. | middle ear from infections likely spread from nasopharynx. |
As nasopharynx blends into oropharynx, the epithelium changes from __. | pseudostratified columnar to a more protective stratified squamous. |
The palatine & lingual tonsils are found where? | Embedded in the oropharyngeal mucosa. |
The laryngopharynx is continuous w/ __ posteriorly. | esophagus |
The adam's apple is the __. | laryngeal prominence |
The framework of the larynx. | 9 cartillages connected by membranes & ligaments. |
The __ seals the larynx when we swollow. | Epiglottis - 9th cartilage - elastic - covered by tastebud - containing mucosa. |
The true vocal cords are __. | The pearly white vocal folds that vibrate & produce sound. |
Vocal folds close during? | Valsalva's maneuver - lifting heavy load & emptying the rectum - defecation. |
Windpipe | Trachea |
3 layers of trachea | mucosa (goblet cell-containing pseudostratified), submucosa (CT w/seromucous glands) & adventitia (CT & hyaline cartilage). |
patent | open |
In trachea, food contacting mucosa of __ causes violent coughing. | carina |
Choking closes off the __. | trachea - Heimlich maneuver can open. |