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Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
ISBN: 9781305389892

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BuyFindarrow_forward

Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
ISBN: 9781305389892
Textbook Problem

A characteristic of blood circulation through or to the heart is that:

a. the superior vena cava conveys blood to the head.

b. the inferior vena cava conveys blood to the right atrium.

c. the pulmonary arteries convey blood from the lungs to theleft atrium.

d. the pulmonary veins convey blood into the left ventricle.

e. the aorta branches into two coronary arteries that conveyblood from heart muscle.

Summary Introduction

Introduction:

Mammals have a four-chambered heart made up of cardiac muscles comprising two upper atria that which pumps the blood into two lower ventricles. The contraction and relaxation of heart muscle help in pumping the blood.

Explanation

Justification/explanation for the correct answer:

Option (b) is, the inferior vena cava conveys blood to the atrium. Venae cavae are the blood vessels that receive blood from the entire body. Inferior vena cava transports blood from the kidney, liver, and hind limbs to the right atrium. This blood contains a high concentration of carbon dioxide and low oxygen concentration. This blood is sent to the lungs for purification. Hence, option (b) is correct.

The explanation for the incorrect answers:

Option (a) is, superior vena cava conveys blood to the head. Superior vena cava transports blood from the head to the heart. It does not transport blood from the heart to the head. So, it is an incorrect option.

Option (c) is, the pulmonary arteries convey blood from the lungs to the left atrium...

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