Chapter 28, Problem 2A

Summary Introduction

To fill:

The name of the chamber of the heart that receives blood from the body.

Introduction:

Fishes live in aquatic habitats like lakes, seas, rivers, ponds, etc. Some fishes live in complete darkness at the bottom of the deep ocean whereas others live in the freezing water of the Polar Regions and have special proteins in their blood to keep the blood from freezing. There are about 24,600 species of living fishes are found.

Answer to Problem 2A

The atrium is the chamber of the heart that receives blood from the body.

Explanation of Solution

The amphibians have a three-chambered heart. The atrium is completely divided by tissue into two atria. The oxygenated blood goes to the left atrium from the lungs and the deoxygenated blood goes to the right atrium from the body. The ventricle remains undivided in amphibian.

Conclusion

The atrium is the chamber of the heart that receives blood from the body.