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.
Overview of blood flow through vessels in a closed circulatory system.
A parish nurse checks the blood pressure of a church member
meds for heart failure
Vessels of the heart: Posterior
A Change of Heart
Development of the Heart