Introduction to Histology

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What is the purpose of dehydration in tissue processing?

To remove lipids from the tissue

To clear the tissue

To fix the tissue

To remove water from the tissue (correct)

What is the ideal temperature range for melting para n?

Above 70 degrees Celsius

Between 46 and 68 degrees Celsius (correct)

Below 40 degrees Celsius

At room temperature

What type of microtome is used for fresh, unprocessed tissues?

Fluorescent Microtome

Cryomicrotome (correct)

Microtome

Polarized Microtome

What is the function of hematoxylin in staining?

Stains basophilic structures Signup and view all the answers

What is the final step of staining in tissue processing?

Washing with alcohol Signup and view all the answers

What type of microscope is used to study structures that are polarized?

Polarized Microscope Signup and view all the answers

What is the purpose of fixation in tissue processing?

To preserve the tissue structure Signup and view all the answers

What is the primary function of the ECM in forming tissues?

To provide structure and support to the cells Signup and view all the answers

What is the main objective of fixation in histology?

All of the above Signup and view all the answers

What is the result of the reaction between the fixative and the protein in tissue fixation?

A gel-like substance that preserves tissue structure Signup and view all the answers

Which of the following is an example of physical fixation in everyday life?

Sun-drying vegetables and fruits Signup and view all the answers

What is the basic structural and functional unit of a body?

Cell Signup and view all the answers

What is the term for the breakdown of tissues by the body's own enzymes?

Autolysis Signup and view all the answers

What is the characteristic of cells that form a tissue?

They have the same structure and function Signup and view all the answers

What is the primary function of an electron microscope?

To see the ultra structures of the tissue in light and dark colors Signup and view all the answers

What type of electron microscope is used to observe processed tissues?

Transmission Electron Microscope Signup and view all the answers

What is the purpose of autoradiography?

To use radioactive material to study a tissue Signup and view all the answers

What is the main goal of histology?

To observe and detect normal structures of tissues Signup and view all the answers

What is the purpose of cell and tissue culture?

To put cells in in-vitro conditions Signup and view all the answers

What is the function of immunohistochemistry?

To identify some types of tumors using antibodies Signup and view all the answers

What is the purpose of enzyme histochemistry?

To use enzymes to observe tissues upon a reaction Signup and view all the answers

What is the limitation of tissue observation?

The processing of the tissue Signup and view all the answers

What is the relationship between histology and tissue observation?

Histology is the study of tissues to observe and detect normal structures of tissues Signup and view all the answers