A member asked:

How do the respiratory, circulatory and digestive systems work together to provide the energy needed for your cells to function?

5 doctors weighed in across 2 answers
Dr. Alexander Turin answered

Specializes in General Practice

The respiratory system provides oxygen for your cells to carry out oxidative energy-forming processes while simultaneously expelling carbon dioxide waste. The digestive system absorbs valuable nutrients (glucose, electrolytes, etc.) that participate in these reactions. The circulatory system is the plumbing that connects everything together.

Answered Apr 29, 2020

5.4k views

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Dr. David Malpass answered

Specializes in Pediatric Cardiology

Good question, but too complicated to answer in 400 characters or less. Consider taking a class or reading a book on human physiology. https://www.coursera.org/course/humanphysio.

Answered Feb 3, 2018

4.9k views

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