Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332



Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem

In a person at rest, the largest volume of blood is in _______.

  1. a. arteries
  2. b. capillaries
  3. c. veins
  4. d. arterioles

Summary Introduction

Introduction: The regular pumping of the heart maintains a continuous flow of blood all over the body. Deoxygenated blood from the peripheral organs move towards the right atrium through the venous system and gets oxygenated in the lungs and return back to the left atrium. Then, the blood flows to the left ventricle and by subsequent contraction of the heart, the oxygenated blood gets pumped out into different body parts.


Reason for the correct answer:

The heart is a muscular pumping organ that always pumps oxygenated blood to different body parts. Based on the necessity only, the pumping rate will vary. If the body demands high oxygen for any particular function to be carried out, then a signal from that part will be passed by the nervous system. It stimulates the heart to pump at a high rate, so that the required body part will get enough oxygen. Only arterial vessels carry oxygenated blood and veins carry deoxygenated blood from different body parts. When a person is at rest, his body does not need excess oxygen other than the normal rate. Therefore, the blood volume inside the arteries would be less and the veins contain the largest volume.

Option c. is given as “veins”. When a person is at rest, the largest blood volume will be present only in veins. Therefore, option c. is the correct answer.

Reasons for the incorrect answers:

Option a...

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

Moderate alcohol use has been credited with providing possible health benefits. Construct an argument for why m...

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

What is motion?

An Introduction to Physical Science

What do enzymes do in metabolic reactions?

Human Biology (MindTap Course List)

What is the plasma membrane, and what are its main functions?

Biology: The Dynamic Science (MindTap Course List)