Trace the correct path of an oxygen molecule moving from your alveoli into the blood.

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

Lumen of alveolus → endothelium of capillary → basement substance → epithelium of alveolus → blood

Lumen of alveolus → epithelium of alveolus → endothelium of capillary → basement substance → blood

Lumen of alveolus → basement substance → epithelium of alveolus → endothelium of capillary → blood

Lumen of alveolus → epithelium of alveolus → basement substance → endothelium of capillary → blood

answer is A.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

The diffusion membrane is made up of three major layers namely, the thin squamous epithelium of alveoli, the endothelium of alveolar capillaries and the basement substance in between them. The oxygen molecule must first move through the alveolar epithelium, then the basement substance and then the endothelium.

Watch 3-min video & get full concept clarity