Learning Objectives Identify the four major tissue types and describe their functions. Describe the relationship between form and function for each tissue type. Discuss the types and functions of epithelial tissues. Compare the structure and function of connective tissues.
Learning Objectives Explain the structure and function of the four types of membrane. Describe the three types of muscle tissue and the structural features of each. Discuss the basic structure and role of neural tissue.
Tissues are: Collections of specialized cells and cell products organized to perform a limited number of functions Histology = study of tissues The four tissue types are: Epithelial Connective Muscular Nervous Tissues of the Body: An Introduction Tissues and tissue types
Includes glands and epithelium Glands are secretory Is avascular Forms a protective barrier that regulates permeability Cells may show polarity Tissues and tissue types Epithelial tissue
Physical protection Control permeability Provide sensation Produce specialized secretions Functions of epithelium
Perform secretory functions Perform transport functions Maintain physical integrity Ciliated epithelia move materials across their surface Specializations of epithelium
Establishing a structural framework Transporting fluids and dissolved materials Protecting delicate organs Supporting, surrounding and interconnecting tissues Storing energy reserves Defending the body from microorganisms Connective Tissues Connective tissue functions:
Distinctive collections of cells in a fluid matrix Blood Formed elements and plasma Red blood cells, white blood cells and platelets Arteries carry blood away, veins carry to the heart Capillaries allow diffusion into the interstitial fluid Lymph Interstitial fluid entering the lymphatic vessels Fluid connective tissues
Cartilage and bone support the rest of the body Cartilage Grows via interstitial and appositional growth Matrix is a firm gel containing chondroitin sulfate Cells called chondrocytes Cells found in lacunae Perichondrium separates cartilage from surrounding tissues Three types: hyaline, elastic and fibrocartilage Supporting connective tissues
You should now be familiar with: The four major tissue types and their functions. The relationship between form and function for each tissue type. The types and functions of epithelial tissues. The structure and function of connective tissues. The structure and function of the four types of membrane. The three types of muscle tissue and the structural features of each. The basic structure and role of neural tissue.