There are four main types of human tissue: epithelia, connective, muscular, and nervous tissue. Epithelia tissue covers surfaces and forms glands. It includes several layers and cell shapes. Connective tissue is made of cells and extracellular matrix. Its types include connective, cartilage, bone, and blood. Muscular tissue is made of muscle cells and has skeletal, cardiac, and smooth types. Nervous tissue contains neurons and supports cells in the brain, spinal cord, and nerves.

1. Tissue There are 4 types of function that has similar structures in human tissue Epithelia tissue Connective tissue Muscular tissue Nervous tissue Epithelia tissue Muscular tissue Credits

2. Epithelia tissue Cellularity- composed almost entirely of cells Polarity-apical and basal surfaces Special contacts Support by connective tissue Types of Epithelia Simple Stratified Shapes of cells Squamous Cuboidal or columnar Simple epithelia Stratified epithelia Tissue

3. Simple epithelia Single Layer There are 4 classifications Simple Squamous Simple Cuboidal Simple Columnar Psuedostratified Columnar Tissue Epithelia tissue Simple squamous Simple Cuboidal Simple Columnar Psuedostratified columnar

4. Simple squamous Single Layer of flattened cells Functions Diffusion Filtration Provide a slick Location Present in the kidney glomeruli, lining heart, blood vessels, lymphatic vessels, and serosae Tissue Epithelia tissue Simple epithelia Simple cuboidal Simple columnar Psuedostratified columnar

5. They are several layers thick They protect bladder and glands 4 different types of stratified epithelia Stratified cuboidal Stratified Columnar Transitional Squamous Tissue Epithelia tissue Stratified cuboidal Stratified Columnar Transitional Stratified squamous

6. Simple cuboidal Single Layer of cube-like cells with large, spherical central nuclei Functions Secretion Aborption Location Kidney tubules Ducts Secretary portions Tissue Epithelia tissue Simple epithelia Simple squamous Simple columnar Psuedostratified columnar

7. Simple columnar Single layer of tall cells with oval nuclei, and contain many cilia Goblet cells are often find in this layer Functions Absorption, and Secretion Cilia help move substances through internal passageways Ciliated type line Small Bronchi, Uterine tubes, and some regions of the uterus Tissue Epithelia tissue Simple epithelia Simple squamous Simple cuboidal Psuedostratified columnar

8. Single layer of cells with different heights Some don’t reach the free surface Nuclei are seen at different layers Function Secretion, and propulsion of mucus Present in the male sperm- carrying ducts (non-ciliated), and trachea (ciliated). Epithelia tissue Simple epithelia Simple squamous Simple columnar Simple cuboidal Tissue

9. Quite rare in the body Found in some sweat and mammary glands Typically 2 cell layers thick Stratified squamous Tissue Epithelia tissue Stratified Epithelia Stratified Columnar Transitional

10. Limited distribution in the body Location Pharynx, male urethra, and lining some glandular ducts Occurs at transition areas between 2 other types of epithelia. Tissue Epithelia tissue Stratified Epithelia Stratified Cuboidal Transitional Stratified squamous

11. Several cell layers, basal cells are cuboidal, surface cells are dome shaped Stretches to permit the distension of the urinary bladder Lines the urinary bladder, ureters, and part of the urethra. Tissue Epithelia tissue Stratified Epithelia Stratified Cuboidal Stratified columnar Stratified squamous

12. Thick membrane Functions Protection of underlying arcas subjected to abrasion Tissue Epithelia tissue Stratified Epithelia Stratified Cuboidal Stratified Columnar Transitional

13. Connective tissue Abundant and widely distributed tissue proper Types of connective tissue Connective tissue proper Connective tissue cartilage Connective tissue Bone Connective tissue Blood Function Binding and support Protection Insulation Transportation Types of cells of connective tissue Fibroblasts Chondroblasts Osteoblasts Hematopoietic stem cells Tissue Connective tissue proper Connective tissue cartilage Connective tissue bone Connective tissue blood

14. Connective tissue proper Just one cell Fibroblasts 2 types of connective tissue proper Loose Dense Tissue Connective tissue Connective tissue proper: Loose Connective tissue proper: Dense

15. Connective tissue bone Hard, calcified matrix Osteocytes can be found in Lacume, and vas cularized Stores calcium, minerals and fats Tissue Connective tissue

16. Connective tissue blood Red and white cells in a matrix Function Transport of respiratory Gases Nutrients wastes Tissue Connective tissue

17. Nervous tissue Branched neurons with long cellular processes and support cells Location Brain Spinal cord Peripheral nerves Tissue Connective tissue

18. Connective tissue proper: Loose 3 types of connective tissue proper: Loose Areolar Adipose Reticular Tissue Connective tissue Connective tissue proper Loose Connective tissue proper: reticular Loose Connective tissue proper: Adipose Loose Connective tissue proper: Areolor

19. Loose Connective tissue proper: Areolar Gel-like matrix with all 3 connective tissue fibers Wraps and eushions organs Widely distributed throughout the body There are fibroblasts, maerophages, mast cells, and some white blood cells Tissue Connective tissue Connective tissue proper Loose Connective tissue proper: reticular Loose Connective tissue proper: Adipose

20. Loose Connective tissue proper: Adipose Matrix similar to areolar connective tissue with closely packed adipocytes Reserved food stores Local fat deposits serve nutrients needs of highly active organs Tissue Connective tissue Connective tissue proper Loose Connective tissue proper: reticular Loose Connective tissue proper: Areolor

21. Loose Connective tissue proper: reticular Loose ground substance with reticular fibers They form a soft internal skeleton They found in lymph nodes, and the spleen Tissue Connective tissue Connective tissue proper Loose Connective tissue proper: Areolar Loose Connective tissue proper: Adipose

22. Connective tissue proper: Dense 2 types of connective tissue proper: Dense Dense regular Dense irregular Tissue Connective tissue Connective tissue proper Dense Regular Dense irregular

23. Connective tissue proper: Dense regular Fibroblasts Found in tendons, ligaments, and aponearoses Parallel collagen fibers with a few elastic fibers Tissue Connective tissue Connective tissue proper Dense irregular Dense elastic

24. Connective tissue proper: Dense irregular Irregularly arranged collagens fibers with imperceptible network of collagen fibers Forms the costal cartilage In embryonic skeleton, the end of long bones, nose, trachea, and larynx Tissue Connective tissue Connective tissue proper Dense elastic Dense regular

25. Hyaline cartilage Chondrocyte lie in lacunae Supports, reinforces, cushions, and resists compression Forms the costal cartilage Tissue Connective tissue Connective tissue proper Elastic cartilage Fibrocartilage

26. Connective tissue cartilage 3 types Hyaline cartilage Elastic cartilage Fibro cartilage Ground substance Chondrocyte Tissue Connective tissue Connective tissue proper Hyaline cartilage Elastic cartilage Fibrocartilage

27. Elastic cartilage Similar to hyaline cartilage but has more elastic Maintain shape structure while allowing flexibility Tissue Connective tissue Connective tissue proper Hyaline cartilage Fibrocartilage

28. Fibrocartilage Matrix similar to hyaline cartilage Provides tensile strength and absorbs compression shock Tissue Connective tissue Connective tissue proper Hyaline cartilage Elastic cartilage

29. Muscle tissue 3 types of muscle tissue Skeletal Cardiac Smooth Common in body Has contractions Tissue Skeletal Cardiac Smooth

30. Muscle skeletal tissue Long, cylindrical, multi nucleate cells with obvious striations Initiates and controls voluntary movement Tissue Cardiac Smooth Muscle tissue

31. Muscle cardiac tissue Branching, striated, uni nucleate cells interlocking at intercalated discs Found in the walls of the heart Tissue Muscle tissue Skeletal Smooth

32. Muscle smooth tissue Sheets of spindle-shaped cells with central nuclei Found in the walls of hollow organs Tissue Muscle tissue Skeletal Cardiac

33. Credits Pictures by Andrew Green, Nikki Caros, David Na Information by David Na By David Na