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D170 W15 Epithelial and Connective Tissues Williams What are the four basic types of tissue in the body? What are the two forms of epithelial tissue? What are the six functions of epithelial tissue? List. What are the six special characteristics of epithelial tissue? List and describe in 1 sentence. What is the difference between the apical and basal side of epithelia? What are two ways that epithelia are classified? Complete the following table to compare and contrast the types of epithelia in the human body. Epithelial type Simple squamous # of layers Type(s) of cells Function Examples Simple cuboidal Simple columnar Pseudostratified columnar Stratified squamous Stratified cuboidal Stratified columnar Transitional Skip section on glands Describe the structure and function of the following features of epithelial cells. Note whether these features are found on the apical side, basal side, or lateral side of the cells. Tight junction – Adhesive belt junction – Desmosome – Gap junction – Basal lamina – Basement membrane – Microvilli – Cilia – Draw a typical epithelial cell and label these structures. What are the four classes of connective tissue in the body? Be able to describe the following special characteristics of connective tissue: Extracellular matrix – Ground substance – Fibers – Describe the structure and function of the types of cells found in connective tissue: Fibroblasts and fibrocytes – Chondroblasts and chondrocytes – Osteoblasts and osteocytes – Adipose cells – White blood cells – Macrophages – Mast cells – Summarize the structure and function of the types of fibers found in connective tissue in one sentence: Collagen fibers – Reticular fibers – Elastic fibers – Describe the structure and function of ground substance. Complete the following table to compare and contrast the types of connective tissue proper in the human body. Connective tissue proper type Function Type(s) of cells ECM make-up Type(s) of fibers Examples Areolar (loose) Adipose (loose) Reticular (loose) Dense irregular Dense regular Elastic (dense) Skip sections on cartilage, bone, blood, and covering and lining membranes Examine the Focus Figure 4.11 and complete the activity in your Mastering A&P pre-class assignment regarding this figure. You will need to be able to recognize simple photomicrographs of epithelial and connective tissue. Take the histology quiz in PAL to prepare. Key terms and structures: Epithelial tissue Cilia Tight junctions Adhesive belt junction Basal lamina Microvilli Gap junction Desmosomes Basement membrane Apical surface Basal surface Squamous Cuboidal Columnar Simple Stratified 8 types of epithelial tissue Connective tissue Connective tissue proper Extracellular matrix (ECM) Ground substance Fibers Collagen fiber Reticular fiber Elastic fiber Fibroblasts Fat cells Chondroblasts Osteoblasts White blood cells Macrophages Mast cells Loose connective tissue Dense connective tissue Areolar tissue Adipose tissue Reticular tissue Dense irregular tissue Dense regular tissue Elastic tissue
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