GROSS ANATOMY

Detailed explanation-1: -The circulatory system helps maintain normal body temperature. Arteries usually carry blood high in oxygen toward the heart.

Detailed explanation-2: -The blood plays a role in temperature regulation. It distributes heat throughout the body, from the core to the surface and vice versa. By changing the blood flow to the skin, the body can control heat exchange at its surface with its surroundings.

Detailed explanation-3: -Our internal body temperature is regulated by a part of our brain called the hypothalamus. The hypothalamus checks our current temperature and compares it with the normal temperature of about 37°C. If our temperature is too low, the hypothalamus makes sure that the body generates and maintains heat.

Detailed explanation-4: -The nervous system regulates the cardiovascular system with the help of baroreceptors and chemoreceptors. Both receptors are located in the carotids and aortic arch. Also, both have afferent signals through the vagus nerve from the aortic arch and afferent signals through the glossopharyngeal nerve from the carotids.

Detailed explanation-5: -It starts with how colder temperatures affect our body and circulation. Cold air causes our arteries to tighten, which restricts blood flow to the heart and increases our blood pressure. It also means less oxygen travels to the heart, which is already working heard to keep the rest of the body warm.