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CYTOLOGY

Definition of Cytology
• The study of cell structure its Functions and behavior,

Cell Discovery

• Robert Hooke first observed cells in 1665 using a microscope

Cell Theory

• Proposed by Schleiden, Schwann, and Virchow, it
states:
• Allliving organisms are composed of cells,
• Cells are the basic units of
structure and function in
organisms.
• All cells arise from pre- existing cells.,

Types of Cells

• Prokaryotic cells: No nucleus or membrane-bound organelles (e.g., bacteria)
• Eukaryotic cells: Have a nucleus and membrane-bound organelles (e.g., animal and plant cells)

Cell Structure

• Cell membrane: Semi- permeable barrier.
• Nucleus: Control center containing DNA.
• Cytoplasm: Jelly-like substance containing organelles
• Organelles: Structures like mitochondria, ribosomes, ER, Golgi apparatus, etc.
6. Cell Functions
• Metabolism, growth, reproduction, and response to stimuli.

7. Importance of Cytology
Basis for understanding diseases, genetics, and therapies like cancer treatment.

Let us treat nervous system together.

Good morning everyone