02 - Blood Flashcards
Blood represents what percentage of body weight?
a) 8%
b) 2%
c) 0.8%
d) 20%
a) 8%
Blood preserves acid-base…
Homeostasis ⚖️
Blood distributes solutes such as…
- Hormones
- Ions
- Nutrients
- Metabolic waste
The 3 main constituents of blood, suspended in the plasma, are…
- Erythrocytes (‘red blood cells’)
- Leukocytes (‘white blood cells’)
- Thrombocytes (platelets)
Haematocrit is a measure of…
Red blood cell volume
Normal haematocrit is…
42% for women and 45% for men
Plasma is 90%…
Water 💦
Plasma proteins (4)…
- Serum albumin
- Globulins
- Fibrinogens
- Regulatory proteins
Serum albumin helps maintain…
Osmotic pressure
Serum albumin is involved with the transport of…
Lipids and steroid hormones
Serum albumin is produced in the..
Liver
Globulins transport…
Ions, hormones and lipids
Globulines also include…
Immune proteins
The levels of various plasma proteins can be identified by using…
Electrophoresis
Cirrhosis is…
Low levels of albumin and clotting factors
Low levels of albumin in cirrhosis is associated with…
A lack of osmotic control leading to severe edema known as “ascites”
The gross structure of an erythrocyte can be described as a…
Biconcave disk
The structure of erythrocytes enhances their…
Surface area to volume ratio
Erythrocytes contain enzymes, haemoglobin, cytosol but no…
Mitochondria or nucleus
Red blood cells may be too small (microcytic) as the result of…
Iron deficiency anaemia
Red blood cells may be too large (macrocytic) as the result of…
Folate (B9) deficiency anaemia
Mean cell volume (MCV) is…
80-96 fL (femtolitres = 10^-15 L)
Synthesis of erythrocyctes begins in the…
Bone marrow 🦴
Erythrocytes originate from which cell type?
Multipotential hemopoietic stem cells known as hemocytoblasts
