Fixatives are pivotal in maintaining tissue integrity. Some of the commonly used fixatives include:
Formalin: A 10% solution of formaldehyde in water, widely used due to its effectiveness and compatibility with various staining techniques. Glutaraldehyde: Used primarily for electron microscopy, it provides excellent preservation of ultrastructural details. Bouin's solution: A mixture of picric acid, formaldehyde, and acetic acid, ideal for preserving soft and delicate tissues.