Questions and Answers
What are the two main methods of obtaining blood samples?
Vein punctures method and Capillary punctures method
When is the Vein punctures method carried out?
When the test needs a lot of amount of blood
Where can blood be taken from in the Capillary punctures method?
The side surface of the finger and the lobe of the ear
What are the components of the blood preparation and separation of plasma?
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How is the result of the blood separation process described?
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What is the main function of a microscope?
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How many objective lenses does a microscope typically have?
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What is the magnification power of the eyepiece (ocular lens)?
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What is the function of the condenser in the illumination system of a microscope?
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What is the purpose of the oil immersion objective lens?
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Study Notes
Blood Sampling Methods
- Two main methods of obtaining blood samples: Vein punctures and Capillary punctures
- Vein punctures method is carried out when a large volume of blood is required
Capillary Punctures Method
- Blood can be taken from the fingertips or earlobes in the Capillary punctures method
Blood Preparation and Separation
- Components of blood preparation and separation of plasma: blood collection, centrifugation, and plasma separation
- The result of the blood separation process is described as a clear or transparent liquid (plasma) and a solid component (blood cells)
Microscope
- Main function of a microscope: to magnify small objects or structures
- A microscope typically has 3-4 objective lenses
- Magnification power of the eyepiece (ocular lens): 10x
- Function of the condenser in the illumination system of a microscope: to focus light onto the specimen
- Purpose of the oil immersion objective lens: to increase the resolution and magnification power of the microscope
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