Blood Plasma, Haematology (physiology) Flashcards

1
Q

Three components of the blood

A

Plasma (makes up 55% of the blood)
Buffy coat (<1%, consist of platelets and WBC)
Erythrocytes (makes up 45% of the blood)

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2
Q

What are the constituents of blood plasma? (5)

A

Proteins
Nonprotein nitrogenous substances
Electrolytes
Respiratory gases
Organic nutrients

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3
Q

What are the three groups of plasma proteins?

A

Albumin (60% of total plasma proteins)
Globulins (36% of total plasma proteins)
Fibrinogen (4% of total plasma proteins)

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4
Q

Name the protein that haemoglobin binds to

A

Haptoglobin

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5
Q

Functions of plasma proteins include: (5)

A

-Role as reserve proteins.
-Role for coagulation of blood.
-Transportation of mechanisms.
-Maintenance of osmotic pressure in blood.
-Role in viscosity of blood.

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6
Q

What are the inorganic ions found in blood? (6)

A

-Potassium
-Sodium
-Calcium
-Phosphate
-Hydrogen carbonate
-Chloride

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7
Q

What is an acute plasma protein (APP)?

A

Any protein whose concentration increases by 25% or more during certain inflammatory disorders.

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8
Q

What are examples of APP? (4)

A

-Fibrinogen
-C-reactive protein
-Serum amyloid A
-alpha 1-acid glycopreotein

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9
Q

C-reactive protein release is triggered by?

A

-Infection, trauma and surgery.

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10
Q

What causes the ff:
1. Moderate changes in CRP
2. Small changes in CRP

A
  1. Strenuous exercise, childbirth and heat stroke.
  2. Psychological stress and several psychiatric illnesses.
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