Jan 1, 2026 · Science Biology Biology questions and answers 12. When the diaphragm contracts, thoracic volume__and intrapulmonary pressure a. decreases; decreases b. decreases; increases c. …

When the diaphragm contracts, it partiallyfills the pleural cavity with airascends into the thoracic cavitydescends into the abdominal cavityfills the pleural cavity with serous fluid

Jan 1, 2026 · Question: During quiet expiration:a. the diaphragm contracts decreasing the size of the thoracic cavityb. intra-alveolar pressure decreases causing air to flow out of the lungsc. the …

Question: A. During (INHALATION or EXHALATION), the diaphragm contracts. B. During exhalation, the pressure in the thoracic cavity increases. True or False C. The carbon dioxide concentration of the …

Feb 1, 2026 · Which best describes what happens during exhalation?The diaphragm contracts, intrapulmonary pressure increases, air flows outThe diaphragm relaxes, intrapulmonary pressure …

Question: Inspiration begins asMultiple Choicethe diaphragm relaxesthe diaphragm contractsthe lungs expandthe lungs contractthe external and internal intercostals contract

During forced exhalation the internal intercostals contract the diaphragm contracts the external intercostals contract the scalenes contract If osmolarity is mOsM, the osmorecepiors …

Jan 1, 2026 · . When the diaphragm contracts: SELECT ALL THAT APPLY a. the size of the thoracic cavity increases. b. lung volume increases as the lungs are forced to expand c. the intra-alveolar …

Question: Exhalation begins when o A. Inspiratory muscles relax o B. Diaphragm contracts o C. Blood circulation is the lowest o D. Inspiratory muscles relax and diaphragm contracts ean o E. Inspiratory …

When the diaphragm contracts (is pulled downward), occurs. a hiccup inhalation exhalation the lungs deflate