The Circulatory System Quizziz Review Q's

What are the functions of the circulatory system?

• The heart is an organ that pumps blood.

• The circulatory system includes your heart and blood arteries. The circulatory system's primary role is to transport oxygen, nutrients, and hormones throughout your body's muscles, tissues, and organs. The circulatory system also removes waste from cells and organs so that your body can get rid of it.

• False

THIS chamber of the heart PUMPS blood to the body.

How much RBCs are in one pint of blood?

• There are about 3.4 trillion RBCs in one pint of blood.

• There are about 1.4 trillion RBCs in one pint of blood.

• There are about 3.2 billion RBCs in one pint of blood

• There are about 2.4 trillion RBCs in one pint of blood.

Why is blood circulation important?

• The importance of blood circulation is due to the fact that without it, people would die extremely quickly. White blood cells, for example, are transported as part of the circulatory system; these cells combat infection and protect people from potentially lethal foreign organisms.

• A blood cell issue occurs when your red blood cells, white blood cells, or the smaller circulating cells known as platelets, which are essential for clot formation, are affected.

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What's the difference between arteries and veins?

• Veins carry blood away from the heart, while veins are the ones that bring blood to the heart.

• Arteries carry blood away from the heart, while veins are the ones that bring blood back to the heart.

• Arteries carry blood away from the heart.

• Veins bring blood back to the heart.

What is the main function of a RBC?

• Red blood cells are responsible for lots of things,.

• Red blood cells are accountable for hauling oxygen from your lungs to your body's tissues. Your tissues create energy with oxygen and discharge a waste, recognized as carbon dioxide.

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True or False: The veins have thicker walls than the arteries because of the higher pressure they have to withstand.

• True, arteries withstand lower pressure and thus have thinner and less elastic valves

• False, arteries withstand higher pressure and thus have thicker and more elastic walls

What is blood largely composed of? More specifically, what makes up the water in the blood?

• Platelets

• White Blood Cells

• Plasma

True or False: RBC's are developed in your body’s soft bone tissue (bone marrow) and released into your bloodstream after they fully mature.

• True, RBC's are developed in your body's soft bone tissue.

• False, RBC's are not developed in your body's soft bone tissue.

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How many months do RBCs live for?

• RBCs live about 5-6 months with an average lifespan of 125 days.

• RBCs live about 3-4 months with an average lifespan of 120 days.

• RBCs live about 1-2 months with an average lifespan of 100 days.