Which type of cell makes up about 90% of the alveolar surface?
A) Ciliated simple squamous epithelial cells
B) Type I pneumocytes
C) Type II pneumocytes
D) Macrophages

Name: Which type of cell makes up about 90% of the alveolar surface? A) Ciliated simple squamous epithelial cells B) Type I pneumocytes C) Type II pneumocytes D) Macrophages
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Type I pneumocytes make up about 90% of the alveolar surface area and are involved in the process of gas exchange between the lungs and the blood.

Which Type of Cell Makes Up About 90% of the Alveolar