EXSS 175 - EXAM 3 REVIEW Questions with Detailed Verified Answers

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EXSS 175 - EXAM 3 REVIEW
Questions with Detailed Verified
Answers


Question: Nose and Nasal Cavity


Ans: warm, moistens, and filters air as it it inhaled


Question: pharynx


Ans: passageway for air, leads to trachea


Question: larynx


Ans: the voice box, where vocal cords are located


Question: trachea


Ans: keeps the windpipe open // lined with fine hairs called cilia which filter
air before it reaches the lungs


Question: brochi


Ans: two branches at the end of the trachea, each lead to a lung


Question: bronchioles

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Ans: a network of smaller branches leading from bronchi into the lung
tissue and ultimately to air sacs


Question: alveoli


Ans: the functional respiratory units in the lung where gases are
exchanges


Question: purposes of the respiratory system


Ans: gas exchange, regulation of blood pH, sensory receptors, air
filtration, vocal sounds


Question: key processes of respiratory system


Ans: pulmonary ventilation, alveolar (external) respiration, tissue
(internal) respiration


Question: pulmonary ventilation


Ans: movement of air in and out of lungs


Question: alveolar (external) respiration


Ans: movement of gases between lungs and blood


Question: tissue (internal) respiration

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Ans: movement of gases between blood and cells


Question: pathway of airflow


Ans: nose + nasal cavity / pharynx / larynx / trachea / bronchi


Question: pleural membrane


Ans: visceral: lines lungs


parietal: lines cavity


Question: pleural cavity


Ans: spaces between membranes containing lubricating fluid


Question: layers of the heart wall


Ans: 1. epicardium


2. myocardium (95% of heart is cardiac muscle)


3. endocardium


Question: pericardium


Ans: membrane surrounding and protecting the heart


Question: fibrous pericardium