What is the largest organ in the human body by surface area?
A. Brain
B. Heart
C. Liver
D. Skin
The largest organ in the human body by surface area is the skin. It covers the enre external surface of the body and has an average surface area of about 20 square feet in adults.
Therefore, the Correct Answer is D.
More Questions on TEAS 7 Science
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Q #1: What is the name of the valve that separates the left atrium and left ventricle in the heart?
A. Aortic valve
B. Mitral valve
C. Tricuspid valve
D. Pulmonary valve
Answer Explanation
The mitral valve is located between the left atrium and left ventricle of the heart and helps to regulate the flow of blood between these chambers. It consists of two leaflets or flaps that open and close in response to changes in pressure as the heart beats.
During diastole, when the heart is relaxed and filling with blood, the mitral valve opens to allow blood to flow from the left atrium into the left ventricle. During systole, when the heart contracts to pump blood out of the left ventricle and into the systemic circulation, the mitral valve closes to prevent backflow of blood into the left atrium.
The mitral valve is one of four valves in the heart that help to ensure the unidirectional flow of blood through the heart and the rest of the circulatory system. Problems with the mitral valve, such as mitral valve prolapse or mitral stenosis, can lead to a range of symptoms and complications, including shortness of breath, fatigue, chest pain, and heart failure.
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Q #2: What is the chemical formula for water?
A. H2O
B. CO2
C. NaCl
D. C6H12O6
Answer Explanation
The chemical formula for water is H2O. It consists of two hydrogen atoms and one oxygen atom.
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Q #3: What is the largest organ in the human body by surface area?
A. Brain
B. Heart
C. Liver
D. Skin
Answer Explanation
The largest organ in the human body by surface area is the skin. It covers the enre external surface of the body and has an average surface area of about 20 square feet in adults.
