Answer:
yes because without it people would go suicidal from the stress.
- someone already asked this question.
Pay attention to class if that's the field you wanna be in bro?
Answer:
You should probably ask if they fell forward or backwards and how they fell on it and go from there
Explanation:
hope this helps a bit
Answer: Atrioventricular valves
Explanation:
These are the mitral and tricuspid valves, which are suit between the atria and the ventricles and prevent back flow from the ventricles into the atria during systole. The function of the subvalvular apparatus is to keep the valves from prolapsing into the atria when they close.