Answer:
You are not sure whether the condition is serious.
Explanation:
I think the question is not full , it must be more than you put in the image because it’s not showing any type of medicines.
Answer:
I believe the Thoracic cavity is part of the Ventral cavity
Explanation:
Srry i can’t answer this because i don’t know what was the video you watched you would have to rewatch it a find out that’s the best i can help