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Biology > Blood > Flashcards

Blood Flashcards

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1
Q

What is the primary function of the circulatory system?

A

To transport blood, nutrients, gases, and waste products throughout the body.

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2
Q

True or False: The heart is a muscle that pumps blood through the circulatory system.

A

True

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3
Q

Fill in the blank: The main components of the circulatory system are the heart, blood, and ______.

A

blood vessels

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4
Q

What are the two main types of circulation in the circulatory system?

A

Systemic circulation and pulmonary circulation.

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5
Q

Multiple choice: Which blood vessel carries oxygen-rich blood away from the heart?

A

Arteries

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6
Q

What is the role of veins in the circulatory system?

A

To carry deoxygenated blood back to the heart.

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7
Q

True or False: Arteries have thinner walls than veins.

A

False

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8
Q

Fill in the blank: The largest artery in the body is the ______.

A

aorta

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9
Q

What is the name of the liquid component of blood?

A

Plasma

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10
Q

Multiple choice: Which type of blood cell is responsible for oxygen transport?

A

Red blood cells

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11
Q

What is the function of white blood cells in the circulatory system?

A

To fight infections and protect the body against disease.

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12
Q

True or False: The heart has four chambers.

A

True

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13
Q

Fill in the blank: The two upper chambers of the heart are called ______.

A

atria

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14
Q

What is the function of the valves in the heart?

A

To prevent backflow of blood.

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15
Q

Multiple choice: Which part of the heart receives deoxygenated blood from the body?

A

Right atrium

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16
Q

What is the term for the process of blood circulation starting from the heart to the lungs and back?

A

Pulmonary circulation

17
Q

True or False: Blood pressure is a measure of the force of blood against the walls of blood vessels.

A

True

18
Q

Fill in the blank: The ______ node is known as the heart’s natural pacemaker.

A

sinoatrial

19
Q

What is the average resting heart rate for adults?

A

60 to 100 beats per minute.

20
Q

Multiple choice: Which condition is characterized by high blood pressure?

A

Hypertension

21
Q

What is the primary role of capillaries in the circulatory system?

A

To facilitate the exchange of oxygen, carbon dioxide, and nutrients with tissues.

22
Q

True or False: The circulatory system is also known as the cardiovascular system.

A

True

23
Q

Fill in the blank: The ______ system works closely with the circulatory system to transport hormones.

A

endocrine

24
Q

What type of blood vessel has the thinnest walls?

A

Capillaries

25
Q

Multiple choice: Which component of blood helps in clotting?

A

Platelets

26
Q

What is the function of the pulmonary veins?

A

To carry oxygenated blood from the lungs to the heart.

27
Q

True or False: The left ventricle pumps blood to the lungs.

A

False

Biology (4 decks)

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