Produce a list of at least 5 ways the circulatory system is involved in the
process of homeostasis and how it is accomplished.
Answers
Answer:
Single-celled organisms don’t need blood or a circulatory system to maintain homeostasis because they get nutrients from and excrete wastes directly into their environment. Humans, on the other hand, have trillions of cells and are much larger and more complex than paramecium or bacteria. This requires a more sophisticated system to help maintain homeostasis. The four major parts of the circulatory system are the heart, blood vessels, blood, and lymphatic system.
The Heart
The heart is a pump made of cardiac cells that circulates blood and lymph throughout the body. Its arteries carry oxygen-rich blood and nutrients to the tissues while the veins transport waste products to areas such as the lungs for elimination.
The parasympathetic and sympathetic nervous systems control heart rate. Through these systems, the body reacts to its internal and external environments to change the heart rate and maintain homeostasis. For example, when a person starts to exercise, the body stops parasympathetic stimulation of the heart so the rate can gradually increase, bringing more oxygen and nutrients to the muscles. Then, as the exercise gets more strenuous, the sympathetic system begins sending signals to the heart to raise the rate even more. At the same time, the increased amount of waste products coming from cells are transported out of the body at a faster rate, maintaining homeostasis.
Explanation:
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