Tissue types

Simple squamous epithelium

Rapid diffusion, filtration, and secretion in alveoli, endothelium, and mesothelium

Simple Cuboidal Epithelium

absorption and secretion in kidney tubules; has lumen and basement membrane

Simple Columnar Epithelium

simple columnar cell with lumen, basement membrane, and goblet cell; for absorption and secretion (mucin) in digestive lining

Pseudostratified Columnar Epithelium Ciliated

pseudostratified cell, basement membrane, cilia; for protection, mucin secretion, and movement by cilia; in respiratory tract

Stratified Squamous Epithelium: Non-Keratinized

stratified squamous cells, basement membrane, lumen; protects underlying tissue in vagina, oral cavity, pharynx, esophagus and anus

Stratified Squamous Epithelium: Keratinized

stratified squamous cells, keratinization (dead on top); protects underlying tissue in epidermis

Stratified Cuboidal Epithelium

stratified cuboidal cell, basement membrane, lumen; protection and secretion; large ducts of exocrine glands and parts of male urethra

Stratified Columnar Epithelium

stratified columnar cell, basement membrane, lumen; protection and secretion in male urethra and large ducts of exocrine glands

Transitional Epithelium

domed apical surface, basement membrane, lumen; distension and recoil in urinary bladder, ureters and parts of urethra

Mesenchyme

common origin for all other connective tissue types in embryo, fetus, and adult tissues

Areolar Connective Tissue

Fibroblasts, elastic fibers, collagen fibers, ground substance; packs and binds organs surrounding nerves, vessels, and subcutaneous layer

Adipose Connective Tissue

Adipocytes; protects, stores fat, and insulates in subcutaneous layer surrounding kidneys

Reticular Connective Tissue

reticular fibers, ground substance; stroma of lymphatic organs in spleen, liver, lymph

nodes, and bone marrow

Dense Regular Connective Tissue

collagen fibers, fibroblast nuclei, ground substance; unidirectional strength and flexibility in tendons and ligaments

Dense Irregular Connective Tissue

collagen fibers, fibroblast nuclei, ground substance; tensile strength in all

directions in dermis and organ capsules

Elastic Connective Tissue

elastic fibers, ground substance; provides framework and supports organs in the walls of large arteries

Hyaline Cartilage

chondrocyte in lacuna, extracellular matrix; smooth surfaces for

movement at joints, model for bone growth, supports soft tissue; ends of long bones, fetal skeleton, costal cartilage, most of the larynx, trachea, and nose