Answer to Question 1
D
The heart supports perfusion, the movement of blood into and out of the lungs to the organs and tissues of the body. The primary functions of the lungs include ventilation, the movement of air in and out of the lungs, and diffusion, the movement of gases between air spaces and the blood-stream. Respiration is the exchange of oxygen and carbon dioxide during cellular metabolism.
Answer to Question 2
A
Feedback:
Good Samaritan laws provide legal immunity to passersby who provide emergency first aid to victims of accidents. Therefore, the law is applicable to the nurse as well; moreover, the nurse did not accept any compensation for the service provided. The law is equally applicable to everyone, but does not provide absolute exemption from prosecution in cases of negligence. Paramedics, ambulance personnel, physicians, and nurses who stop to provide assistance are still held to a higher standard of care because they have training above and beyond that of average lay people. In cases of gross negligence, health care workers may be charged with a criminal offense.
heart model front
BLOOD CELLS
Exercise increases the heart rate.
Unlabeled Fetal Pig Heart
The common rail on a Cummins diesel engine. A high-pressure pump (up to 30,000 PSI) is used to ...
In amphibians, lizards, snakes, and turtles, the heart has three chambers: two atria and one ventric