Chapter 30, Problem 5A

Summary Introduction

Introduction:

The heart is a muscular organ, which is the central organ of the circulatory system. The main function of the heart is to pump the blood in the body through the blood vessels. The mammalian heart consists of four chambers, two auricle, and two ventricles, the auricles receive the blood from the body and lungs and the ventricles pump blood to the lungs and body.

Answer to Problem 5A

Correct answer:

Option (A).

Explanation of Solution

Explanation/justification for the correct answer:

Option (A) oxygenated blood is separated from the deoxygenated blood. The separation of the blood ensures the maximum delivery of the oxygen to the tissues. This ensures that the energy is not wasted. Hence, the correct answer is option (A).

Explanation for incorrect answer:

Option (B) the heart has three chambers and is able to pump more blood. The heart illustrated here is a four chambered heart. Hence, it is an incorrect answer.

Option (C) This system moves oxygenated blood to the lungs. The oxygenated blood in this system is directed to the body. Hence, it is an incorrect answer.

Option (D) This system moves deoxygenated blood to the body. This system moves the deoxygenated blood to the lungs. Hence, it is an incorrect answer.