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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. |