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In the text that accompanies the section titled Respiratory System, you will find a section on the pulmonary arteries. What is the origin of the right and left pulmonary arteries? *

Which body part is the cranium located in? *

What is the gateway to the gastrointestinal tract? *

In the video 'What are drugs and how do they work? Understanding receptor theory better', how many types of drugs did the speaker mention? *

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