Anatomy Unit 1 Enrichment

1.8.1 Enrichment

1. How is the concept of homeostasis related to aging and disease? Provide examples to support your thinking.

* The concept of homeostasis is related to aging because no matter what age we are, our body is constantly changing. Homeostasis relates to disease because Our body has to maintain it at all times, especially when we are ill. If our body is weakened, it becomes harder to maintain homeostasis. When someone gets sick or severely ill, the body has to work extra hard to get everything back and running in order to maintain homeostasis.

2. When we are dehydrated, we are thirsty and drink water. Is this part of negative or positive feedback control systems? Explain your reasoning.

* It is part of a negative feedback control system, because becoming dehydrated is not very good for our body. If we stay out in the heat for a long time, we begin sweat a lot, which causes us to lose a lot of water and that’s how we become dehydrated. Our body knows how much water we should have and noticed if it’s getting too low. The body’s receptor responds to the changes of the body, the control center analyzes the information, and the effector provides a means for response to the stimulus. Then we drink water, and after a while everything gets back to normal.

3. Why would you have a hard time understanding physiology if you did not also understand anatomy?

* You would have a hard time understanding physiology if you did not also understand anatomy because of the fact that neither one of them would be complete without the other. Anatomy without physiology would leave us wondering as to how our body functions. Physiology would not exist without anatomy because there wouldn’t be any structures, and then there would be no need to explain how they function.

4. Describe the different body cavities.

* We have the Dorsal cavity that protects the nervous system. Cranial cavity which is within the skull and encases the brain. Vertebral cavity runs...