Anatomy & Physiology Circulatory #1

Question

Which is a waste product that is eliminated by the circulatory system?

Answers

  1. Oxygen
    • Rationale:

      Oxygen is transported by the circulatory system; however, it is not a waste product removed by this system.

  2. Thyroxine
    • Rationale:

      Thyroxine, a thyroid hormone, is transported by the circulatory system; however, it is not a waste product removed by this system.

  3. Carbon dioxide
    • Rationale:

      Carbon dioxide (CO2) is a waste product of oxygen consumption within the body that is removed by the circulatory system.

  4. Potassium chloride
    • Rationale:

      Potassium chloride is an electrolyte that is transported by the circulatory system; however, it is not a waste produced removed by this system.

Overview

The circulatory system within the human body provides the cells with freshly oxygenated blood from the heart in addition to removing waste products from these same cells.

Explanation

Learning Outcomes

The circulatory system supplies and transports the human body with electrolytes, hormones, nutrients, and oxygen. It also plays a vital role in controlling the body’s acid-base balance (i.e., pH), hemostasis, resistance against infection, removal of waste products and temperature. One waste product that is removed from the human body by the circulatory system is carbon dioxide, a waste product of oxygen consumption.

Test Taking Tip

Ask yourself which choice is classified as a waste product within the blood to determine the correct answer for this question.

Video Rationale