BLOOD CIRCULATION ONLINE QUIZ

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Questions and Answers

What is the lifespan of red blood cells approximately?

About a decade
About a year (correct)
About a month
About a week

Which type of blood cell primarily increases during infections?

White blood cells (correct)
Red blood cells
Platelets
Alveoli

What is the iron-containing molecule found in red blood cells?

Hemoglobin (correct)
Carbonic acid
Ferric oxide
Plasma

What is the primary function of red blood cells?

Transport respiratory gases (B) Signup and view all the answers

Which cells are responsible for defending the body against bacterial infections?

White blood cells (B) Signup and view all the answers

What process would likely be affected by an abnormality in platelets?

Fighting bacterial infections (B) Signup and view all the answers

People with antigen A on their red blood cells can give blood to which blood types?

A and AB (A) Signup and view all the answers

What system transports fluid between cells to the bloodstream?

Lymphatic system (A) Signup and view all the answers

What is an essential role of platelets?

Promote clotting (B) Signup and view all the answers

Which blood component is responsible for transporting cholesterol?

Plasma (B) Signup and view all the answers

Which of the following is not a function of the human cardiovascular system?

Filtering wastes out of the blood (A) Signup and view all the answers

Which heart chamber receives blood from the venae cavae?

Right atrium (D) Signup and view all the answers

What is the role of the ventricles in the heart?

Chambers that pump blood to the lungs and body (A) Signup and view all the answers

The vessels that carry deoxygenated blood are known as:

Pulmonary arteries (D) Signup and view all the answers

Blood entering the right atrium is primarily:

Deoxygenated (D) Signup and view all the answers

Which chamber of the heart receives oxygenated blood from the lungs?

Left atrium (B) Signup and view all the answers

What part of the heart initiates the heartbeat?

Bundle of cells at the right atrium (B) Signup and view all the answers

Which type of blood vessel has the thickest layer of muscle?

Artery (C) Signup and view all the answers

What distinguishes veins from arteries, related to blood flow?

Veins have thin walls and valves to prevent backflow (A) Signup and view all the answers

What are the smallest and most numerous blood vessels in the body?

Capillaries (D) Signup and view all the answers

Flashcards

Function of Cardiovascular System

The cardiovascular system's role in distributing nutrients, carrying waste, and maintaining body temperature.

Heart Chamber (Vena Cavae)

The right atrium receives deoxygenated blood from the body (venae cavae).