Respiratory Lab

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Riverside City College *

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1

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Biology

Date

Apr 3, 2024

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pdf

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9

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P RE -L AB Q UESTIONS 1. Name two functions of the nasal cavity mucosa. The mucosa of the nasal cavity serves to moisten the air that is inhaled, to facilitate gas exchange between the bloodstream and the outside environment, as well as to trap tiny molecules. 2. Why is the trachea reinforced with cartilaginous rings? In order to protect and keep the airway open, C-shaped cartilaginous rings are reinforced on the trachea's anterior and lateral sides. 3. Starting with the nares, describe the path a molecule of oxygen takes to get to body tissue. Pharynx, Larynx, trachea, bronchi, bronchioles, aveoli, left ventricle, aorta, artery, arteriole, and capillaries . 4. What is asthma? A chronic (long-lasting) disease that affects the lungs' airways is asthma. ©eScience Labs, 2016
E XPERIMENT 1: M ICROSCOPIC A NATOMY OF THE R ESPIRATORY S YSTEM Data Tables Table 1: Experimental Observations Respiratory Image Description of Visible Structure(s) Trachea Its lining is ciliate columnar pseudostratified epithelium. Lung Simple squamous epithelium lines the alveoli, which are surrounded by alveolar cells. ©eScience Labs, 2016
Post-Lab Questions 1. Identify the labeled components in the slide image below. A: pseudostratified columnar epithelial cells B: goblet cells C: lamina propria D: cilia present over epithelial cell layer ©eScience Labs, 2016
2. Identify the labeled components in the slide image below. A: pulmonary vein B: lumen of bronchiole C: alveolar sac D: alveoli showing air space. ©eScience Labs, 2016
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