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Flashcards in 13 hematological system Deck (14)
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1
Q

What does the word “haematopoietic” mean?

A

} Relates to all blood making processes

2
Q

What is its function?“haematopoietic”

A

} To differentiate and proliferate different stem cells to

form various components of the blood

3
Q

} All blood cells and plasma develop from

A

a stem cell that

can develop into any other cell.

4
Q

Circulating blood volume is approx

A

8% of body

weight (about 4-5 L in an adult 70 kg man)

5
Q

About half of that is plasma how many ml?

A

(2-3 Litres)

6
Q

• Consists of two parts blood

A
  1. Plasma (liquid containing water, proteins, nutrients, gases,
    hormones and waste products)
  2. Formed elements (red cells, white cells and platelets)
7
Q

Plasma

A

• Clear yellow fluid containing blood cells/other

substances, either dissolved or bound to protein

8
Q

main plasma protein

A

Albumin

9
Q

serum when no clotting factors included

A

when no clotting factors included in plasma

10
Q

Lymph

A

tissue fluid which enters lymphatic vessels after leakage at arterial end of capillaries

11
Q

The spleen

A

Involved in the physiology of blood

Four functions:

12
Q

The spleen Four functions:

A

ü Production of RBC’s in foetal development
ü Filtering old/defective RBCs
ü Immune function – lymphocytes/monocytes
ü Storage of platelets

13
Q

The spleen becomes enlarge in a number of conditions

A

ü Infections (mononucleosis, toxoplasmosis, endocarditis).
ü Cancers, for example, lymphoma and leukaemia.
ü Liver diseases (cirrhosis due to excessive alcohol use).
ü Inflammatory diseases (rheumatoid arthritis, sarcoidosis).
ü Trauma

14
Q

Signs and symptoms of an
enlarged spleen do not
occur commonly, but some
people may have:

A
§ Indigestion and a feeling
of fullness because the
enlarged spleen can
compress the stomach
§ Hiccups because of
diaphragm irritation
§ Pain in the upper
abdomen that may
radiate to the back or
shoulder blade.