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ch 9 h. biology

QuestionAnswer
What is the trachea? windpipe a tube connecting the larynx to the primary bronchi. Its walls consist of connective tissue and smooth muscle reinforced by C-Shaped cartilaginous rings. The rings prevents trachea from colapsing.
What are bronchioles? The bronchi branch into a few secondary bronchi that also branch, until the branches become about 1mm in diameter
What are aveoli multidude of air pockets
The Lungs? cone shaped, in thoracic cavity. right has three lobes and the left has two alowing room for the heart
pleura? Each lung is enclosed with. and 2 layers of serous membrane that produces serous fluid
The Alveoli? lungs have 300million each sac is surronded by capillaries
What type of exchange goes on between air in the alveoli and the blood in the capillaries Gas exchange
Inspiration? inhalition, moves in the lungs
expiration exhaliation, moves air out of lungs
Surfactant lines the alveoli of human lungs. a film of lipoprotien that lowers the surface tension of water and prevents the alveoli from collapsing
Tidal Volume small amount of air moving in and out with each breath abt 500mL
Vital Capacity The maximum volume of air that can be moved in plus the maximum amount that can be moved out during a single breath
What is the diaphragm a skeletal muscle between the lungs. Its function is breathing and venalation
What will happen if air enters the intrapleura space Collapse of lungs
What gas diffuses from the tissue to the blood oxegyn
Internal Respiration exchange between tissues and blood
External Respiration exchange between air sacs and blood
Created by: cdc018
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