Understanding the Path of Carbon Dioxide in the Human Body

How does air initially enter the human body?

• Through the skin

• Through the ears

• Through the nose

• Through the mouth

What is the primary function of oxygen once it is absorbed into the bloodstream?

• To regulate body temperature

• To aid in digestion

• To help in blood clotting

• To support the process of respiration

During respiration, what is released alongside energy?

• Carbon dioxide

• Hydrogen

• Oxygen

• Nitrogen

Where does carbon dioxide go after it leaves the bloodstream?

• Into the stomach

• Into the air sacs of the lungs

• Into the brain

• Into the liver

What is the correct path of carbon dioxide as it exits the body?

• From the bloodstream to the brain and out through the ears

• From the air sacs to the windpipe and out through the nose

• From the lungs to the stomach and out through the mouth

• From the liver to the intestines and out through the skin