BIOD 151 EXAM 2 QUESTIONS WITH 100% APPROVED CORRECT ANSWERS GRADED A+ FIRST CLASS PASS 2025

BIOD 151 EXAM 2 QUESTIONS WITH 100% APPROVED CORRECT ANSWERS GRADED A+ FIRST CLASS PASS 2025 BIOD 151 EXAM 2 QUESTIONS 2025   BIOD 151 EXAM 2 QUESTIONS WITH 100% APPROVED CORRECT ANSWERS GRADED A+ FIRST CLASS PASS 2025 How many lobes does the right lung have? - correct answerThree Air (and not food) pass in which of the following areas: A. Esophagus B. Nasopharynx C. Oropharynx D. Both A. and C. - correct answerNasopharynx Air and food pass in which one of the following areas: - correct answerOropharynx Ring of cartilage line much of the respiratory tract. In which of the following would cartilage not be found? Trachea Larynx Bronchi Alveoli - correct answerAlveoli Be able to label the following on a diagram - correct answera. Nasal Cavity b. oral cavity c. soft pallet d. epiglottis e. glottis f. trachea g. esophagus h. tongue What happens to the epiglottis during swallowing? - correct answerDuring swallowing the epiglottis moves inferiorly to cover the trachea. This prevents food and liquid from entering the lungs (aspiration). A premature baby is having difficulty producing surfactant. Explain problems that may occur and why? - correct answerSurfactant covers the lumina and helps keep the alveoli from sticking together during exhalation. Breathing difficulty will occur due to this because alveoli are not functioning properly Explain the difference between type I and type II alveoli cells. - correct answerType I alveolar cells: make up about 95% of alveolar epithelium and form a very thin, simple squamous epithelium of the alveoli in junction with capillaries Type II alveolar cells: Make up 5%, dispersed throughout the type I cells, produce and secrete pulmonary surfactant on alveolar surface so they can stay open, can divide to replace damaged Type I cells. True/ False: Negative pressure is used to move air into the lungs? - correct answerTrue: Inhale - causes air to rush inside the lungs because it wants to move from area of high pressure to an area of low pressure Exhale - causes air to rush outside lungs because it wants to move from an area of high pressure to an area of low pressure True/False: During inhalation the diaphragm contracts to pull the lungs open? - correct answerTrue True/False: During inhalation the rib cage lifts in an upward motion to open and expand the lungs - correct answerTrue True/False: as the thoracic cavity expands and the lung volume increase the density of gases filing the lungs decreases? - correct answerTrue Boyles law = high volume in container = lower pressure in container. Pressure and density have a direct relationship True/False: when the diaphragm rises, thoracic pressure increases and air naturally flows out of the lungs. - correct answerTrie (air naturally flows out of the lungs because of the pressure difference. Boyles law states that gas volume is: a. directly proportional to temp b. inversely proportional to temp c. directly proportional to pressure d. inversely proportional to pressure e. both a and b - correct answerD. inversely proportional to pressure typical respiratory epithelium contains all of the following except which one? cilia, layers, tall and narrow cells, mucus producing cells, goblet cells - correct answerLayers Which one of the following tracheal cartilages are paired? Thyroid, Cricoid, Arytenoid, Epiglottal - correct answerAtytenoid Which of the following is not true of the pleurae? A. The pleurae are membranes that cover surfaces tal pleurae covers surfaces surrounding the lungs c. visceral pleurae cover the diaphragm d. a health pleural cavity is nearly empty of air or fluid - correct answerc. visceral pleurae covers the diaphragm - parietal covers surface around the lungs (ribcage, diaphragm, mediastinum) - visceral covers the lungs which of the following is not true of the bronchioles? A. bronchioles can contain respiratory epithelium B. bronchioles can contain simple squamous epithelium C. bronchioles can contain fossa and mucus D. Bronchioles contain cartilage and goblet cells E. bronchioles contain cilia and mucus - correct answerC. Bronchioles can contain fossae and mucus which one of the following is not true of respiratory physiology? A. Tidal volume is the maximum amount of air able to be inhaled beyond normal inhalation B. Tidal volume is the amount of air inhaled and exhaled in one cycle of quite breathing C. Inspiratory reserve volume is the maximum mouth of air able to be inhaled beyond normal inhalation D. expiratory reserve volume is the maximum mouth of air able to be exhaled beyond normal exhalation - correct answerA. Tidal volume is the maximum amount of air able to be inhaled beyond normal inhalation which of the following is true of the respiratory physiology calculations? A. Vital capacity (VC) = ERV + TV B total lung capacity (TLC) = VC + RV C. inspiratory capacity (IC) = TC + RV D. Functional residual capacity (FRC) = IRV + TV - correct answerB total lung capacity (TLC) = VC + RV