Exchange and transport 0.0 / 5 ? BiologyExchange and transportASOCR Created by: Alicebull2305Created on: 01-05-14 12:44 What are the walls of the trachea made up of? Cartilage 1 of 10 What is the role of goblet cells? Secrete mucus to trap particles 2 of 10 During expiration what happens to the diaphragm? Relaxes and is pushed up 3 of 10 What is the tidal volume? Volume of air moved in and out at rest 4 of 10 Why does blood bring CO2 to the lungs? Maintain diffusion gradient 5 of 10 What happens to the pressure in the chest cavity during inspiration? Drops below atmospheric pressure 6 of 10 What type of epithelium is found in the walls of the alveolus? Squamous 7 of 10 How does the capillary wall reduce diffusion distance? One cell thick 8 of 10 Smooth muscle mainly makes up what wall in the respiratory system? Bronchioles 9 of 10 What is the role of cilia in the trachea? Waft mucus up the airway to the back of the throat 10 of 10
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