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Tissue = a group of cells and cell products with similar structure and function.

Tissue = a group of cells and cell products with similar structure and function. There are four 1 o tissues in the body:. Epithelium Connective Muscular Nervous. Functions of Epithelial Tissue. Physical Protection Regulate Exchange Provides Sensation Produce Secretions.

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Tissue = a group of cells and cell products with similar structure and function.

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  1. Tissue = a group of cells and cell products with similar structure and function. There are four 1o tissues in the body: • Epithelium • Connective • Muscular • Nervous

  2. Functions of Epithelial Tissue • Physical Protection • Regulate Exchange • Provides Sensation • Produce Secretions

  3. Characteristics of Epithelial Tissue

  4. Epithelial Tissue Tight Junctions Desmosomes

  5. Classification of Epithelia 1. Number of cell layers A) Single layer of cells = Simple Epithelium B) Several layers of cells (more than one) = Stratified Epithelium 2. Shape of Exposed (apical) cells Squamous epithelium - Thin and flat. Cuboidal epithelium - Short cube-shaped hexagonal boxes. Columnar epithelium - Taller than it is wide. Transitional epithelium - Changes shapes (from squamous to cuboidal).

  6. Classification of Epithelia Simple(1 cell layer) Stratified(more than 1 cell layer) 1) Simple Squamous Epithelium 5) Stratified Squamous Epithelium Keratinized = Epidermis of skin Glomerular capsule; Alveolus Mesothelium; Endothelium Non-keratinized = esophagus, cheek 2) Simple Cuboidal Epithelium 6) Stratified Cuboidal Epithelium Ducts of sweat glands Renal tubules; Thecal follicle (thyroid gland) Ducts of salivary glands 7) Stratified Columnar Epithelium 3) Simple Columnar Epithelium Male urethra Stomach, Small and Large Intestines 4) Pseudostratified Ciliated Columnar Epithelium 8) Transitional Epithelium Urinary bladder, ureter Trachea, larynx, bronchi

  7. Simple Squamous Epithelium

  8. Simple Cuboidal Epithelium

  9. Simple Columnar Epithelium

  10. Pseudostratified Ciliated Columnar Epithelium

  11. Stratified Squamous Epithelium

  12. Stratified Cuboidal Epithelium

  13. Stratified Columnar Epithelium

  14. Transitional Epithelium

  15. Structural Classification of Simple and Compound Exocrine Glands

  16. Modes of Secretion

  17. Connective Tissue Fluid Connective Tissue • Blood • Lymph Connective Tissue Proper 2) Dense • Regular • Irregular • Elastic • Loose • Areolar • Adipose • Reticular Supporting Connective Tissue • Cartilage • Hyaline • Elastic • Fibrocartilage • Bone • Spongy • Compact

  18. Connective Tissue Fluid Connective Tissue Blood– in blood vessels and heart Lymph – in lymph vessels and lymph nodes Connective Tissue Proper Loose 1) Areolar - Papillary region of dermis, around blood vessels, C.T. of membranes 2) Adipose - Hypodermis, eye sockets, renal fat capsule 3) Reticular - Spleen, lymph node, capsule of liver and kidney Dense • Regular – Tendons, ligaments • Irregular – Joint capsules Reticular region of dermis 3) Elastic – Elastic ligaments, walls of arteries, penile ligaments Supporting Connective Tissue Cartilage • Hyaline – nose, trachea, larynx, Costal cartilage, articular cartilage • Elastic – epiglottis, external ear • Fibrocartilage – intervertebral disc, pubic symphysis, menisci Bone • Spongy – inner portion • Compact – outer portion

  19. Areolar Tissue

  20. Adipose Tissue

  21. Reticular Tissue

  22. Dense Regular Connective Tissue

  23. Dense Irregular Connective Tissue

  24. Elastic Tissue

  25. Hyaline Cartilage

  26. Elastic Cartilage

  27. Fibrocartilage

  28. Fluid Connective Tissue Hematopoietic stem cells produce blood and lymph cells

  29. Bone Tissue Compact Bone

  30. Spongy Bone

  31. Muscle Tissue Skeletal Cardiac Smooth Nervous Tissue Neurons and Glial cells

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