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Biology 20: Resp System > Biology 20 Circulatory System > Flashcards

Biology 20 Circulatory System Flashcards

1
Q

What is the primary function of the circulatory system?

A

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

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2
Q

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

A

True

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3
Q

What are the two main circuits of the circulatory system?

A

The systemic circuit and the pulmonary circuit.

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4
Q

Fill in the blank: The _____ carries oxygenated blood away from the heart.

A

aorta

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5
Q

What is the role of red blood cells?

A

To carry oxygen from the lungs to the body’s tissues and return carbon dioxide to the lungs.

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6
Q

Multiple Choice: Which type of blood vessel carries blood back to the heart? A) Arteries B) Veins C) Capillaries

A

B) Veins

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7
Q

What is the function of the lymphatic system?

A

To transport lymph, a fluid containing infection-fighting white blood cells, throughout the body.

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8
Q

True or False: The lymphatic system is part of the circulatory system.

A

True

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9
Q

What is lymph?

A

A clear fluid that circulates through the lymphatic system, containing white blood cells and waste products.

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10
Q

Fill in the blank: The _____ is the largest lymphatic organ in the body.

A

spleen

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11
Q

What is the function of the valves in veins?

A

To prevent the backflow of blood.

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12
Q

Multiple Choice: Which of the following is NOT a component of blood? A) Plasma B) Platelets C) Lymph D) Red blood cells

A

C) Lymph

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13
Q

What is the term for the contraction of the heart muscle?

A

Systole

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14
Q

True or False: Arteries have thicker walls than veins.

A

True

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15
Q

What is the primary gas exchanged in the lungs?

A

Oxygen

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16
Q

Fill in the blank: The _____ system helps regulate body temperature.

A

circulatory

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17
Q

What is the role of platelets in the blood?

A

To help with blood clotting.

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18
Q

Multiple Choice: Which part of the heart receives deoxygenated blood? A) Left atrium B) Right atrium C) Left ventricle

A

B) Right atrium

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19
Q

What is the purpose of the pulmonary circuit?

A

To carry deoxygenated blood from the heart to the lungs for oxygenation.

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20
Q

True or False: The heart has four chambers.

A

True

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21
Q

What are the names of the heart’s four chambers?

A

Right atrium, right ventricle, left atrium, left ventricle.

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22
Q

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

A

sinoatrial

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23
Q

What is hypertension?

A

High blood pressure.

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24
Q

Multiple Choice: Which type of blood vessel has the thinnest walls? A) Arteries B) Veins C) Capillaries

A

C) Capillaries

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25
What is the function of the capillaries?
To facilitate the exchange of oxygen, carbon dioxide, nutrients, and waste between blood and tissues.
26
True or False: The lymphatic system does not have a pump like the heart.
True
27
What is the main component of blood plasma?
Water
28
Fill in the blank: The _____ system plays a crucial role in immunity.
lymphatic
29
What type of cells do lymph nodes contain?
Lymphocytes
30
Multiple Choice: Which vessel carries oxygen-rich blood from the lungs to the heart? A) Pulmonary artery B) Pulmonary vein C) Aorta
B) Pulmonary vein
31
What is the role of the aorta?
To distribute oxygenated blood from the heart to the rest of the body.
32
True or False: Veins have valves to assist blood flow against gravity.
True
33
Fill in the blank: Blood pressure is measured in _____ over _____ (units).
millimeters of mercury (mmHg)
34
What are the two main types of circulation in the body?
Systemic and pulmonary circulation.
35
Multiple Choice: What is the primary function of white blood cells? A) Carry oxygen B) Fight infections C) Clot blood
B) Fight infections
36
What is the term for the relaxation phase of the heart?
Diastole
37
True or False: The heart can function without any nerve supply.
True
38
What is the role of the coronary arteries?
To supply blood to the heart muscle itself.
39
Fill in the blank: The _____ is a network of vessels that transport lymph throughout the body.
lymphatic system
40
What is the primary purpose of the valves in the heart?
To ensure unidirectional blood flow through the heart.
41
Multiple Choice: Which part of the heart pumps oxygenated blood to the body? A) Left atrium B) Right ventricle C) Left ventricle
C) Left ventricle
42
What is the function of the thymus gland?
To produce and mature T-lymphocytes (a type of white blood cell).
43
True or False: Blood type is determined by the presence of specific antigens on red blood cells.
True
44
Fill in the blank: The _____ is the largest artery in the body.
aorta
45
What is the term for the process of blood cell formation?
Hematopoiesis
46
Multiple Choice: Which blood component is responsible for clotting? A) Plasma B) Red blood cells C) Platelets
C) Platelets
47
What is the role of the spleen in the lymphatic system?
To filter blood and help fight infections.
48
True or False: The circulatory system is involved in the regulation of pH levels in the body.
True
49
Fill in the blank: The _____ system helps absorb fats and fat-soluble vitamins from the digestive system.
lymphatic
50
What is the primary function of the pulmonary arteries?
To carry deoxygenated blood from the heart to the lungs.
51
Multiple Choice: Which of the following is a type of white blood cell? A) Erythrocyte B) Neutrophil C) Thrombocyte
B) Neutrophil
52
What is the function of interstitial fluid?
To provide a medium for nutrient and waste exchange between blood and cells.
53
True or False: The lymphatic system helps to maintain fluid balance in the body.
True
54
Fill in the blank: The _____ is a small organ that filters lymph.
lymph node
55
What is the role of the vena cava?
To return deoxygenated blood to the heart.
56
Multiple Choice: Which type of circulation delivers oxygen to body tissues? A) Pulmonary B) Systemic C) Coronary
B) Systemic
57
What is the primary role of the heart valves?
To prevent the backflow of blood.
58
True or False: The lymphatic system is essential for the absorption of dietary fats.
True
59
Fill in the blank: The _____ helps to regulate blood pressure.
kidneys
60
What is the significance of the blood-brain barrier?
To protect the brain from harmful substances in the bloodstream.
61
Multiple Choice: Which of the following is a function of the circulatory system? A) Hormone transport B) Nutrient transport C) Waste removal D) All of the above
D) All of the above
62
What type of immunity involves the production of antibodies?
Humoral immunity
63
True or False: The body can produce antibodies against foreign antigens.
True
64
Fill in the blank: The _____ is a major site of immune response.
lymph node
65
What is the role of the right ventricle?
To pump deoxygenated blood to the lungs.
66
Multiple Choice: What is the main function of the heart? A) To filter blood B) To pump blood C) To produce hormones
B) To pump blood
67
What is the primary function of the lymphatic vessels?
To transport lymph throughout the body.

Biology 20: Resp System (6 decks)

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