3.3 Flashcards

1
Q

What are the functions of blood

A
  • Transporting nutrients, wastes, and gases around the body
  • Leukocytes play a role in immune response
  • Platelets are important in haemostasis
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2
Q

What are the components of blood

A
  • Plasma
  • Red blood cells
  • Buffy coat: WBCs and platelets
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3
Q

Function of blood plasma

A
  • Carries antibodies
  • Transports dissolved solute
  • Carries nutrients and water
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4
Q

Function of WBCs

A

Immune response

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5
Q

Function of platelets

A

Important for haemostasis

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6
Q

Function of erythrocytes

A

Carrying oxygen and CO2 to and from the lungs

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7
Q

Erythropoiesis flow chart

A

Pluripotent SS -> myeoloid progenitor -> erythroblast -> RBC

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8
Q

What can lymphoid progenitors become?

A

B and T lymphocytes

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9
Q

What can myeloid progenitor cells become?

A
  • Megakaryocytes
  • Granulocyte precursor
  • Erythrocyte precursor
  • Monocyte precursor
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10
Q

Haemostasis process outline

A
  • Vascular spasm (constrict -> limits blood)
  • Platelets bind to exposed collagen, form platelet plug
  • Platelets secrete factors -> fibrinogen cleaved to become fibrin; coagulation phase
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