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ch 22 Respiratory
Ch 22 handout
| Question | Answer |
|---|---|
| functions of respiratory system | 1) air passage and movement 2) exchange of gases (oxygen and CO2) 3) Produce speech - larynx 4) maintain ph of blood |
| made of ethmoid bone, cartilage and ciliated epithelial | Nose |
| ciliated epithelium and goblet cells which produce mucous | NASAL MUCOSA *** |
| parts of paranasal sinuses (air cavities) | frontal, maxiliary, sphenoidal and ethmoid |
| three pharyngeal regions | nasopharynx, oropharynx, laryngopharynx |
| -pharyngeal region behind the nasal cavity, passage for air. | nasopharynx |
| -pharyngeal region that are both passage for air and food | oropharynx and laryngopharynx |
| oropharynx's later walls | palantine tonsils |
| 3 functions of larynx | 1) provides passageway to trachea from pharynx 2) voice production (vocal cords) 3) acts as a switching mechanism to route air and food into proper channels. |
| structures of larynx | 1) thyroid cartilage 2) epiglottis 3) vocal cords |
| large piece of cartillage on anterior surface of neck. usually called "adam's apple" | Thyroid cartillage |
| upper cartilage acts as a flap, with swallowing, it prevents food, air or fluid from entering into the larynx and going into trachea | epiglottis |
| composed of muscle and elastic ligaments covered by mucus membrane. located on either side of glottis, below the epiglottis, vibrates and produces sounds | vocal cords |
| transports air from upper airway to brochi and lungs | trachea |
| paired organs located on either sides of the heart, encircled and protected by the rib cage. | lungs |
| bottom portion of lungs, sits on diaphragm | base |
| superior tip of lungs at level of clavicle | apex |
| indentation on medial surface of each lung where primary bronchus and pulmonary artery and vein enter lungs | hilus |
| pleura-serous membrane that lines chest wall | parietal |
| pleura-serous membrane lies on surface of lungs | visceral |