Answer:
Type I pneumocytes.
Explanation:
Type I pneumocytes are cells that cover more than 90% of the alveolar surface, due to the fact that they are very flattened and extensive, they fundamentally facilitate gas exchange. When the pneumocytes I contact the capillaries of the alveolar wall their basement membrane fuses with that of the endothelium, so that the gases only have to cross the cytoplasm of the pneumocyte, the fused basement membranes and the cytoplasm of the capillary endothelium, a set that measures less than 1 micron thick. In the rest of the alveolar wall, between the pneumocytes and the capillaries, a layer of interstitial tissue is interposed, with amorphous substance and fibrils, which performs a support function and, as it has lymphatic vessels, drains the fluid that permanently ultrafilters from the capillaries, thus preventing it from invading the alveoli.
The answer to this question would be: fossa
Fossa is a depression like structure in the bone. This structure will provide a stable join that can only move front or back. In elbow joint, the hinge has two fossa. The olecranon fossa is located in the back and coronoid fossa on the front. In this case, the olecranon fossa is having more contribution to the joint.
B nucleic acids or c nucleotides
Answer:
can u take a closer picture? :)
Explanation: