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Blood > Composition and Function > Flashcards

Composition and Function Flashcards

1
Q

What is the major component of blood?

A

Plasma

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2
Q

How many litres of blood does the average person have?

A

5 litres

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3
Q

Proteins are a large component of plasma. What else does plasma contain?

A 
Nutrients
Electrolytes
Dissolved Gasses
Signalling Molecules
Waste Products
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4
Q

What are the three main components of the formed elements of blood?

A

Erythrocytes
Leukocytes
Thrombocytes

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5
Q

What component makes up 92% of plasma?

A

Water

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6
Q

Globulins are proteins found in blood plasma. What are the three types of globulins?

A

Alpha
Beta
Gamma

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7
Q

One of the functions of blood is regulation. What factors does blood regulate?

A

Temperature
pH
Ion concentration of interstitial body fluids
Cell water content

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8
Q

What is the pH of blood?

A

7.35 - 7.45

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9
Q

What is the function of the fibrinogen proteins which exist in blood plasma?

A

Fibrinogens are clotting factors

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10
Q

Waste products are carried in blood plasma. Give examples of waste products.

A 
Urea
Creatinine
Ammonia
Uric acid
Bilirubin
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11
Q

What is the function of thrombocytes?

A

Thrombocytes play a key role in haemostasis and blood clotting

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12
Q

What is the haematocrit?

A

The percentage of red blood cells in the blood

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13
Q

What are the three main functions of blood?

A

Transport
Regulation
Protection

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14
Q

How do the components of plasma effect osmotic pressure?

A

The molecules in the plasma exist in high concentrations resulting in the diffusion of water into the blood vessels via osmosis

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15
Q

Give examples of nutrients carried in the blood.

A 
Amino acids
Monosaccharides
Fatty acids
Glycerol
Vitamins
Minerals
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16
Q

What is the name of the family of proteins in blood plasma which carry steroid hormones and fatty acids and act as a buffer?

A

Albumins

17
Q

What are electrolytes and what are their function in the blood plasma?

A

Small inorganic ions which hell regulate and maintain osmotic pressure

18
Q

What is serum?

A

Serum is plasma without coagulation factors

19
Q

What is the haematocrit in healthy males and females?

A

Males 45%

Females 40%

Blood (6 decks)

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