Some organs of the integumentary system include skin, hair, and nails. the cardiovascular system includes the heart, veins, and arteries. which best describes the relationship of the integumentary system to the cardiovascular system?
a. the hair of the integumentary system is intermediate to the veins of the cardiovascular system.
b. the hair of the integumentary system is superficial to the veins of the cardiovascular system.
c. the hair of the integumentary system is proximal to the veins of the cardiovascular system.
d. the hair of the integumentary system is distal to the veins of the cardiovascular system.

Explanation:

The integumentary system is includes hair, scales, hooves, feather and nails, which have the main function of protecting the whole body from external harm. It acts as a receptor for pressure, temperatures, pain, heat and cold, when these are higher or lower than normal, the brain give orders to act in consequence, for example, if we have cold, our body shakes to increase the temperature and not die.

Specifically, the integumentary system works with other systems of our body, it's not isolated, for example, our skin has absorption properties, which can enter to our bloodstream, that's why people with specific disease are treated with patches instead of conventional medications, these patches conduct the medicine towards the blood stream.

In this case, the answer that better fits is B, because the hair is not intermediate to the veins, is not proximal or distal to them. The hair is just superficial.