221k views
5 votes
What causes exhalation?

a signal from the medulla to the mouth and nose
a signal from the alveoli to the medulla
a signal from the diaphragm to the medulla
a signal from the medulla to the lungs

User Amnesia
by
7.9k points

2 Answers

4 votes
D: A signal from the medulla you the lungs
User Corey Ogburn
by
7.8k points
4 votes

Answer:C

Explanation:Ed

User Oscaroscar
by
7.2k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.