Explain Why Blood Pressure And Heart Rate Differ When Measured In A Reclining Position
Analysis:
1. Explain why blood pressure and heart rate differ when measured in a reclining position and in a standing position. When a person stands, the heart must pump blood against the pull of gravity to reach important areas such as your brain. Veins must work hard to get blood back to your heart. As a person reclines, the heart does not have to pump as hard to reach the same areas, decreasing the blood pressure. Also, a person is usually more relaxed in a reclining position, which slows breathing and heart rate. Less oxygen is needed to support the body.
It differs because your heart has to work harder when standing. the blood that reaches your legs has to travel back up through veins in your legs as gravity tries to pull it down. More blood pressure means there wont be as much flow back(veins don't have a lot of blood pressure to begin with). also to prevent back flow there are valves in your veins that close after each pass of blood. Another reason why is because while standing muscles are contracted and using ATP which leads to a need for more blood supply to …show more content…
Ectothermic organisms are also known as poikilotherms or cold blooded animals. By definition, cold blooded animals are those that cannot maintain a constant body temperature and are reliant on the environment for their body temperature.
The reason behind this is that cold blooded animals do not have sweat glands that helps mammals like human beings to sweat in order to maintain a body temperature. Hence, when the environment gets cooler, their heart beat slows down and their metabolism slows down too. When the environment is hotter, it automatically increases. As a result of this, cold blooded animals cannot take extremes in temperature and often die in such circumstances.
2.
Nothing will happen. This is due to the endothermic circulatory system which regulates and maintains a stabilized
1. Explain why blood pressure and heart rate differ when measured in a reclining position and in a standing position. When a person stands, the heart must pump blood against the pull of gravity to reach important areas such as your brain. Veins must work hard to get blood back to your heart. As a person reclines, the heart does not have to pump as hard to reach the same areas, decreasing the blood pressure. Also, a person is usually more relaxed in a reclining position, which slows breathing and heart rate. Less oxygen is needed to support the body.
It differs because your heart has to work harder when standing. the blood that reaches your legs has to travel back up through veins in your legs as gravity tries to pull it down. More blood pressure means there wont be as much flow back(veins don't have a lot of blood pressure to begin with). also to prevent back flow there are valves in your veins that close after each pass of blood. Another reason why is because while standing muscles are contracted and using ATP which leads to a need for more blood supply to …show more content…
Ectothermic organisms are also known as poikilotherms or cold blooded animals. By definition, cold blooded animals are those that cannot maintain a constant body temperature and are reliant on the environment for their body temperature.
The reason behind this is that cold blooded animals do not have sweat glands that helps mammals like human beings to sweat in order to maintain a body temperature. Hence, when the environment gets cooler, their heart beat slows down and their metabolism slows down too. When the environment is hotter, it automatically increases. As a result of this, cold blooded animals cannot take extremes in temperature and often die in such circumstances.
2.
Nothing will happen. This is due to the endothermic circulatory system which regulates and maintains a stabilized