Basic Types of Tissues in Histology

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Four BASIC TYPES OF TISSUES

Epithelial

Connective characterized by the abundant extracellular matrix produced by its cells

Muscular

composed of elongated cells specialized for contraction and movement

Nervous

EPITHELIAL TISSUE

FUNCTIONS

CHARACTERISTICS

Basement Membrane

Intercellular Adhesion and Other Junctions

Gap Junctions

SPECIALIZATIONS OF APICAL CELL SURFACE

Stereocilia

Cilia

Motile Cilia

Metachronal rhythm

Primary Cilia

Nodal Cilia

CLASSIFICATION and NAMING OF EPITHELIA

TYPES OF EPITHELIA

Lining Epithelia

Simple Squamous Epithelium Single layer of flat cells with disc-shaped nuclei

Function

Location

Simple Cuboidal Epithelium

Function

Location

Simple Columnar Epithelium

Function

Location

Stratified Epithelia

Major role is protection

Stratified Squamous Epithelium

Specific types

Function

Location

Stratified Cuboidal Epithelium Provides a lining more robust than that of a simple epithelium

Stratified Columnar Epithelium

Function

Location

Transitional Epithelium Urothelium

Function

Location

Glandular Epithelia

Exocrine glands

Endocrine glands

Unicellular Exocrine Gland

MULTICELLULAR EXOCRINE GLANS

Mode of Secretion.

Holocrine secretion.

Apocrine secretion.

Mammary glands.

Exocrine glands classified by types of secretions from exocrine glands.

Epithelial Tissue. SUMMARY OF KEY POINTS.

Basement Membrane.

Intercellular Junctions.

Apical Structures of Epithelial Cells.

Epithelial Secretion/Glands.

Morphological Types of Epithelia.

CONNECTIVE TISSUE

Extracellular matrix

Ground substance

Connective tissues originate from embryonic mesenchyme

Mesenchymal Cells

CELLS OF CONNECTIVE TISSUE

Resident Cell Population

FIBROBLAST

Two Classifications of Fibroblast

Quiescent Fibroblast

Myoblast

ADIPOCYTES

MACROPHAGES AND THE MONONUCLEAR PHAGOCYTE SYSTEM

Histiocytes

Kupffer cells

Microglia

MAST CELLS

Perivascular mast cells

Mucosal mast cells line digestive and respiratory tracts

PLASMA CELLS

>> MEDICAL APPLICATION

LEUKOCYTES

>> MEDICAL APPLICATION

FIBERS

COLLAGEN

>> MEDICAL APPLICATION

COLLAGEN

RETICULAR FIBERS

ELASTIC FIBERS

Elastic lamellae

EXTRACELLULAR MATRIX

Composed of:

GROUND SUBSTANCE

GAGS

Types of GAGS

Proteoglycans

Decorin

Syndecan

Aggrecan

Multiadhesive glycoproteins.

Fibronectin.

Laminin.

Tenascin.

Osteopontin.

Interstitial fluid.

Two forces that maintain the interstitial fluid.

Colloid osmotic pressure.

>> MEDICAL APPLICATION

TYPES OF CONNECTIVE TISSUE

Dense Connective Tissue

Loose Connective Tissue (Areolar Tissue)

Dense Irregular Connective Tissue.

Location:

Dense Regular Connective Tissue.

Location:

Ligaments.

RETICULAR TISSUE

MUCOID TISSUE

Location:

Fetal organs

Two TYPES OF ADIPOSE TISSUE

White Adipose Tissue

Location:

>> MEDICAL APPLICATION

Brown Adipose Tissue

CARTILAGE

Perichondrium

Chondrocytes

MEDICAL APPLICATION

Three Major Forms of cartilage Hyaline Cartilage Elastic Cartilage Fibrocartilage

Chondrogenesis

HYALINE CARTILAGE

Embryo.

ELASTIC CARTILAGE

FIBROCARTILAGE

BONE

Compact Bone

Spongy Bone

Osteocytes.

Periosteum.

Endosteum.

Perforating (or Sharpey) fibers.

Three Major Cell types Osteocytes.

Osteoblasts.

Osteoclasts.

OSTEON.

Cement Line.

OSTEOBLASTS

OSTEOCYTES

OSTEOCLASTS

Woven Bone

BONE FORMATION (OSTEOGENESIS)

Intramembranous ossification

Endochondral ossification

INTRAMEMBRANOUS OSSIFICATION

ENDOCHONDRAL OSSIFICATION

Primary Ossification Center

Secondary Ossification Center

MEDICAL APPLICATION.

BLOOD.

Neutrophils.

Eosinophils.

Basophils.

Lymphocytes.

Monocytes.

Platelets.

HEMOPOIETIC STEM CELLS

BOX twelve-five Monocyte Destinations

PLATELETS

FINALLY

Connective Tissue SUMMARY OF KEY POINTS

Cells of Connective Tissue

Ground Substance

Fibers of Connective Tissue

Types of Connective Tissue

Junqueira's Basic Histology thirteenth edition

White Adipose Tissue

Cartilage Summary of Key Points

Hyaline Cartilage

Bone Summary of Key Points

Major Cells and Matrix Components of Bone

Brown Adipose Tissue

Elastic Cartilage

Fibrocartilage

Cartilage Formation, Growth, and Repair

Periosteum and Endosteum

Junqueira's Basic Histology thirteenth edition

Osteogenesis

Blood SUMMARY OF KEY POINTS

Bone Growth, Remodeling, and Repair

Metabolic Role of Bone

Joints

Hemopoiesis SUMMARY OF KEY POINTS

Overview

The document provides a comprehensive overview of the four fundamental types of tissues in the human body, detailing their structures and functions. It emphasizes the importance of epithelial tissue and its specialized roles, as well as the relationships between different tissue types in organ formation.

Key Points

1The four basic tissue types are epithelial, connective, muscular, and nervous
2Epithelial tissue has diverse shapes and structures, serving vital functions such as protection and absorption
3Specialized structures like microvilli and cilia enhance the functionality of epithelial tissues
4Tissue organization is classified into simple and stratified based on cell layers and morphology
5Intercellular connections play a crucial role in maintaining tissue integrity and functionality

Details

Category: Biology and Natural Sciences

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