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week 14

QuestionAnswer
Which part of the digestive tract is responsible for most nutrient absorption? the small intestine
What is the main function of bile during digestion? It helps break down fats into smaller droplets for easier digestion.
Which layer of the gastrointestinal wall contains smooth muscle that moves food along? The muscularis layer
Where does the majority of chemical digestion begin? the stomach
Which structure prevents food from entering the trachea during swallowing? The epiglottis
What tiny air sacs in the lungs allow gas exchange to occur? Alveoli
Which muscle is the primary driver of breathing during quiet inspiration? The diaphragm
What is the role of pulmonary surfactant? It reduces surface tension and keeps the alveoli from collapsing.
Which part of the respiratory tract warms and filters incoming air? The nasal cavity
What happens to thoracic volume when the diaphragm contracts? Thoracic volume increases, allowing air to move into the lungs.
Created by: coby337
 

 



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