Answer:
is this a question? cause i'm really confused.
Answer:
The mentally ill were sometimes experimented on with treatments that sometimes caused more harm than good.
Explanation:
This passages points out both the good intentions and the harmful consequences of trying out new treatments on human subjects in the asylums.
It states that the institutions wanted to offer new and effective treatments to the patients, but that these were rudimentary and poorly understood and developed. This lack of refinement led to worse conditions for many of the mentally ill.
Answer:
1) A cardiovascular system is an organ system that conveys blood through vessels to and from all parts of the body, carrying nutrients and oxygen to tissues and removing carbon dioxide and other wastes.
2) "Capillaries connect the arteries to veins. The arteries deliver the oxygen-rich blood to the capillaries, where the actual exchange of oxygen and carbon dioxide occurs. The capillaries then deliver the waste-rich blood to the veins for transport back to the lungs and heart. Veins carry the blood back to the heart."
3) A heart attack is a blockage of blood flow to the heart muscle.