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gue 23.20 gureFin this handout) For quite breathing at rest, a. b. 3. Which musc

ID: 3512396 • Letter: G

Question

gue 23.20 gureFin this handout) For quite breathing at rest, a. b. 3. Which muscles are activated during inhalation? Exhalation? Where in the brain stem sets the basal respiration rate? 4. In terms of forced expiratory volume in 1 sec (FEV), normal individuals can expire approximately 80% of the vital capacity in 1 second a. If someon e has obstructive lung diseases, such as emphysema or chronic bronchitis, the airways narrow considerably. How would you expect these conditions affect the vital capacity (VC)? FEV,? FEV./VC? If someone with restrictive lung diseases with normal airway resistance, such as abnormalities of the pleura or the chest wall, how would you expect these conditions affect vital capacity (VC)? FEV,? FEV,/VC? b.

Explanation / Answer

3.

a) The muscles involved in quite breathing are DIAPHRAGM and to a lesser extent EXTERNAL INTERCOASTAL

b) Respiratory centers present in MEDULLA OBLONGATA and PONS in the brain stem set the basal respiration rate

4.

a) Obstructive lung disease

b) Restrictive lung disease

(Hope the answer is clear to you. Thank you )