pg. 1 BIOD 151 Module 2 Exam 2 Newest 2025/ Complete 130 Actual Exam Questions with 100% Correct Verified Answers/ Graded A+
Three regions of the pharynx - Correct Answer - nasopharynx, oropharynx, laryngopharynx
nasopharynx - Correct Answer - connection between nasal cavity and pharynx - superior region of the pharynx at the back of the nose and above the soft palate
Eustachian tube - Correct Answer - connects the middle ear with the nasopharynx and allows passage of air
oropharynx - Correct Answer - central portion of the pharynx caudal to the mouth and anterior to the epiglottis
laryngopharynx - Correct Answer - inferior part of the pharynx connecting the pharynx to the opening into the larynx and esophagus
what separates the nasal cavity from the oral cavity in the mouth - Correct Answer - the hard and soft palates
three major cell types of alveoli - Correct Answer - 1) type I alveolar cells 2) type II alveolar cells 1 / 2
pg. 2 3) macrophages
what are the two epithelial cell types in the alveoli - Correct Answer - type I and type II alveolar cells
Type I alveolar cells - Correct Answer - simple squamous epithelium in junction with capillaries 95% of alveolar epithelium
Type II alveolar cells - Correct Answer - produce and secrete pulmonary surfactant that helps keep alveoli open 5% of alveolar epithelium can divide to replace damaged type I alveolar cells
alveolar macrophages - Correct Answer - dust cells
function of alveolar macrophages - Correct Answer - destroy toxic particles, allergens or infectious materials such as bacteria and other pathogens primary immune defense system of alveoli
Steps of Respiration (gas exchange) - Correct Answer - 1) breathing 2) external respiration 3) internal respiration 4) aerobic cellular respiration
breathing - Correct Answer - movement of air into and out of the lungs includes inspiration and expiration
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