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Transcript 
An-Najah National University
Faculty of Medicine
Department of Physiology
Anatomy and Physiology 1
7102101
Instructor: Heba Salah
Chapter 2:
Part 1:
Cells and Tissues
Anatomy of the Generalized Cell: Nucleus,
and Plasma Membrane
Anatomy of the Cell
Cells are not all the same
All cells share general structures
Cells are organized into three main regions:
Nucleus
Cytoplasm
Plasma membrane
The Nucleus
Control center of
the cell
Contains genetic
material (DNA)
Three regions
Nuclear membrane
Nucleolus
Chromatin
Structure of Plasma Membrane
Specialization of the Plasma Membrane
Microvilli:
Finger-like projections that
increase surface area for
absorption
Membrane junctions:
Tight junctions
Desmosomes
Gap junctions
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