asked 189k views
3 votes
In which part of the human respiratory system does actual oxygen exchange take place?

1.Bronchi

2.Trachea

3.Diaphragm

4.Alveoli

asked
User Xbd
by
7.8k points

2 Answers

5 votes
The alveoli. These little air sacs are found on the end of the bronchioles and are the place where oxygen enters the blood and the carbon dioxide leaves.


answered
User Quick Learner
by
7.8k points
7 votes

Answer:

D. Alveoli

Step-by-step explanation:

I had the K12 test

answered
User Shy Agam
by
8.3k points
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