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[06] Cardiovascular System > [05] Blood Components and Functions > Flashcards

[05] Blood Components and Functions Flashcards

1
Q

What are the main components of blood?

A
  • Plasma
  • Red blood cells
  • White blood cells
  • Platelets
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2
Q

What is the role of plasma in blood?

A
  • Carries nutrients
  • Carries hormones
  • Carries waste products
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3
Q

What is the percentage of water in plasma?

A

About 92%

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4
Q

What else is present in plasma apart from water?

A
  • Proteins
  • Electrolytes
  • Nutrients
  • Waste products
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5
Q

What is the role of red blood cells (RBCs)?

A

Carry oxygen from the lungs to the body’s cells

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6
Q

What gives red blood cells their color?

A

Hemoglobin

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7
Q

What is the lifespan of a red blood cell?

A

Approximately 120 days

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8
Q

What is the role of white blood cells (WBCs)?

A

Defend the body against disease

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9
Q

What are the different types of white blood cells?

A
  • Neutrophils
  • Lymphocytes
  • Monocytes
  • Eosinophils
  • Basophils
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10
Q

What is the role of platelets in blood?

A

Clot formation to stop bleeding

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11
Q

What is the process of clot formation called?

A

Hemostasis

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12
Q

What is the normal count of white blood cells?

A

4,500 to 11,000 WBCs per microliter of blood

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13
Q

What is the normal count of red blood cells?

A
  • Men → 4.7 to 6.1 million cells per microliter
  • Women → 4.2 to 5.4 million cells per microliter
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14
Q

What is the normal count of platelets?

A

150,000 to 450,000 platelets per microliter of blood

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15
Q

What is the role of lymphocytes?

A

Produce antibodies and coordinate the action of other immune cells

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16
Q

What is the role of neutrophils?

A

Engulf and destroy bacteria and fungi

17
Q

What is the role of monocytes?

A

They become macrophages and engulf and destroy pathogens and damaged cells

18
Q

What is the role of eosinophils?

A

Fight parasitic infections and play a role in allergic reactions

19
Q

What is the role of basophils?

A

Release histamine during an allergic reaction

[06] Cardiovascular System (7 decks)

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