The Lungs
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14 Terms
Large surface area
Thin walls
Good Ventilation
Good blood supply
Adaptations for gas exchange
faster diffusion of gases across the surface
Reasons for Large Surface area
Shortest possible diffusion distance
Thin Walls
air so that diffusion gradients can be maintained
Reasons for good ventilation
maintain a high concentration gradient so diffusion occurs faster
Reasons for good blood supply
Bone structure that surround and protect the lungs
Also aid breathing by moving
Ribs
Muscles between the ribs that control movement
Intercostal muscles
Sheet of connective tissue and muscle at the bottom of the thorax that changes the volume of the thorax
Diaphragm
Windpipe that connect the mouth and nose to the lungs
Trachea
Goblet cells
Ciliated epithelial cells
Tissues lining the trachea
produce mucus
Goblet cells
sweep mucus to the mouth
Ciliated cells
smaller tubes that connect bronchus to alveoli
Bronchioles
Tiny moist air spaces where gas exchange takes place
Alveoli
Note 
Flashcards (49)