Epithelial Tissues Connective Tissues and The Integument A&P 1 - Lab #6 Epithelial Tissues Connective Tissues and The Integument

Epithelial Tissues Excercise 8 Tissue - A aggregate of with similar structure and function. Histology - The science that studies tissues.

Epithelial Tissue – Groups of cells that are Protective Absorptive Secretory Transport Excretory Closely attached to each other to form tight sheets lacking in extracellular matrix and vascularization. Cells rest on basal lamina which in turn rests on connective tissue. Free on one end (Apical Surface).

Epithelial Tissue Simple Pseudostratified Stratified Ciliated Nonciliated Squamous Squamous Cuboidal Columnar Columnar Transitional Ciliated Nonciliated

Simple Squamus

Simple Cuboidal

Ciliated Columnar

Pseudo Stratified

Stratified Squamus

Stratified Columnar

Stratified Transitional

Connective Tissue Perform binding, support ,transport and nutritive functions Connective tissue has three types of fibers Collagenous (white) Fibers –Relatively large, thick bundels. Reticular Fibers - Minute network of very fine threads stains well so it looks black. Elastic (yellow) Fiber- contains elastin protein. Found in organs and tissues that must yield to changes in shape.

Connective Tissue Matrix Extra cellular fluid consisting of fibers, fluids, ground substance and or inorganic compounds form the connective tissue matrix. Cell types seen in matrix are fibroblasts, adipose cells, mast cells, plasma cells, macrophages and other types of blood cells. Ground Substance An amorphous solution or gel around the cells and fibers

Connective Tissue Connective Tissue Proper Special Connective Tissue Loose Fibrous (Areolar) Hemopoietic (Blood-Forming) Dense Fibrous Regular Support Irregular Cartilage Hyaline Reticular Elastic Adipose Fibrocartilage Bone Compact Spongy

Areolar Connective Tissue

Dense Fibrous Regular Irregular

Reticular

Adipose

Blood

Hyaline Cartilage

Elastic Cartilage

Fibrocartilage