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Blood Composition and Functions Quiz

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Questions and Answers

Blood is composed of two main components. What are they?

Plasma and leukocytes

Plasma and erythrocytes (correct)

Erythrocytes and thrombocytes

Leukocytes and thrombocytes

What is the function of blood plasma?

Carrying nutrients

Transporting oxygen

Dissolving and suspending various cells and cell fragments (correct)

Forming blood clots

What is the normal pH range of blood?

6.0 to 6.5

7.0 to 7.5

8.0 to 8.5

7.35 to 7.45 (correct)

What is the ABO blood group system based on?

Presence or absence of antigens on red blood cells Signup and view all the answers

What is the RH factor in blood?

A protein found on red blood cells Signup and view all the answers

Which of the following is NOT one of the major structures of the cardiovascular system?

Lungs Signup and view all the answers

Where is the heart located in the body?

In the thoracic cavity Signup and view all the answers

What is the approximate size of the heart?

12 cm long, 9 cm wide, and 6 cm thick Signup and view all the answers

Where does two-thirds of the mass of the heart lie?

To the left of the body midline Signup and view all the answers

What is the mediastinum?

A mass of tissue that extends from the sternum to the vertebral column Signup and view all the answers