The job of the circulatory system is to circulate, or constantly move, blood around the body. Blood carries oxygen and nutrients to cells. It also collects cellular waste like carbon dioxide so that it can be removed from the body. The circulatory system is composed of the heart, arteries, veins, capillaries and the blood transported by these tissues. Arteries, veins and capillaries are types of blood vessels. Arteries are usually represented in red on a diagram of the circulatory system because they carry oxygen-rich blood. Veins are usually represented in blue because they carry oxygen-poor blood. Capillaries are the smallest blood vessels. They are thinner than a strand of hair. If you straightened out all the blood vessels in the body, the circulatory system’s network would be 60,000 miles long. Which of these is true of blood?

Blood brings oxygen and nutrients to cells.

Blood is transported through veins only.

Blood collects capillaries from cells around the body

The main organ of the circulatory system is the heart. The heart is a fist-sized muscle a little to the left of the center of the chest. Every day, it beats about 100,000 times, pumping about 2,000 gallons of blood. The heart has four chambers: the right atrium, right ventricle, left atrium and left ventricle. Each chamber is separated by a valve. These valves work like one-way doors that keep blood flowing in the right direction. The valves open to let blood flow through, then quickly close to prevent it from flowing backward. Based on the passage, which of these is most likely true?

Blood circulates through the body in one direction.

The heart has eight separate chambers.

The human body contains about 2,000 gallons of blood.

At its core, circulation is how blood gains and loses oxygen as it moves through the body. Veins carry oxygen-poor blood from the body to the right side of the heart. The heart pumps this blood through the pulmonary arteries into the lungs. The blood picks up oxygen in the lungs and moves into the left side of the heart. The heart pumps the oxygen-rich blood through the aorta, the body’s main artery. The blood moves through arteries and capillaries to deliver oxygen and nutrients to cells all over the body. Then the newly oxygen-poor blood is carried through the veins to the right side of the heart, and the cycle of circulation begins again. Which of these is a difference between veins and arteries?

Veins flow toward the heart, and arteries flow away from the heart.

Arteries flow toward the heart, and veins flow away from the heart.

Circulatory System Quiz

Quiz

•

Science

•

8th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-LS2-3, HS-LS1-3, MS-LS1-2

+2

Standards-aligned

Jonathan Pauley

Used 4+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which organ is responsible for pumping oxygenated and deoxygenated blood throughout the body?

Lungs

Heart

Stomach

Small Intestine

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

______ is the tendency of an organism to maintain balance, a constant and stable internal environment.

Pulmonarisis

Photosynthesis

Homeostasis

Which level of organization encompasses the others?

Cells

Tissues

Organs

Organ Systems

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

the movement of blood throughout the body.

Circulation

Tissues

Homeostasis

Organ Systems

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

The circulatory system is responsible for all of the following EXCEPT:

Transporting nutrients throughout the body to cells that require it

Circulating metabolic waste such as carbon dioxide away from cells that no longer need it

Excreting waste from the body

Working with the respiratory system to circulate oxygen and carbon dioxide throughout the organism

Which of these is true?

Veins carry oxygen-poor blood, and arteries carry oxygen-rich blood.

Veins carry oxygen-rich blood, and arteries carry oxygen-poor blood.

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

The main organ of the circulatory system is the

Liver

Lungs

Heart

Head

Create a free account and access millions of resources

Create resources

Host any resource

Get auto-graded reports

Continue with Google

Continue with Email

Continue with Classlink

Continue with Clever

or continue with

Microsoft

Apple

Others

Already have an account?

Similar Resources on Wayground

20 questions

8th GRADE FINAL EVALUATION

Quiz

•

8th Grade

15 questions

Classifying Matter

Quiz

•

6th - 8th Grade

20 questions

Energy Sources

Quiz

•

7th - 10th Grade

20 questions

Oceans and Currents

Quiz

•

8th Grade

20 questions

[201] CHAPTER 5 WATER & SOLUTION

Quiz

•

8th Grade

17 questions

Science F3 Theme 2 - Strike A PT3 (Sasbadi)

Quiz

•

7th - 9th Grade

15 questions

Pop Science: DNA

Quiz

•

8th - 12th Grade

20 questions

Cell Organelles

Quiz

•

8th - 10th Grade

Popular Resources on Wayground

25 questions

Multiplication Facts

Quiz

•

5th Grade

15 questions

4:3 Model Multiplication of Decimals by Whole Numbers

Quiz

•

5th Grade

10 questions

The Best Christmas Pageant Ever Chapters 1 & 2

Quiz

•

4th Grade

12 questions

Unit 4 Review Day

Quiz

•

3rd Grade

20 questions

Christmas Trivia

Quiz

•

6th - 8th Grade

18 questions

Kids Christmas Trivia

Quiz

•

KG - 5th Grade

14 questions

Christmas Trivia

Quiz

•

5th Grade

15 questions

Solving Equations with Variables on Both Sides Review

Quiz

•

8th Grade

Discover more resources for Science

20 questions

Convection, Conduction, and Radiation

Quiz

•

6th - 8th Grade

10 questions

Exploring Heat Transfer: Conduction, Convection, and Radiation

Interactive video

•

6th - 8th Grade

10 questions

Exploring the Energy Cycle: Photosynthesis and Cellular Respiration

Interactive video

•

6th - 10th Grade

12 questions

Amoeba Sisters: Natural Selection

Interactive video

•

8th Grade

23 questions

Newton's 3 Laws of Motion

Quiz

•

8th Grade

11 questions

Force and Motion

Lesson

•

6th - 8th Grade

22 questions

Modeling Magnetic Force

Lesson

•

8th Grade

21 questions

Punnett Squares

Quiz

•

7th - 9th Grade

Circulatory System Quiz

20 questions

Which organ is responsible for pumping oxygenated and deoxygenated blood throughout the body?

______ is the tendency of an organism to maintain balance, a constant and stable internal environment.

Which level of organization encompasses the others?

the movement of blood throughout the body.

The circulatory system is responsible for all of the following EXCEPT:

Which of these is true?

The main organ of the circulatory system is the

The heart is about the size of a

a type of blood vessel that carries oxygen-poor blood from the body toward the heart.

a type of blood vessel that carries oxygen-rich blood from the heart to the rest of the body.

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science