Lab 3 Terms and Lesson Flashcards
Simple definition of Epithelial Tissue
Covers surfaces, lines cavities, and form
Simple definition of Muscle Tissue
Causes movement
Simple definition of Nervous Tissue
Receives and generates nerve impulses
Simple definition of Connective Tissue
Connects different tissues, provides a framework, resists pulling forces, provide immunity and stores energy
What is the most abundant primary tissue in the body?
Connective tissue
Simple definition of extracellular matrix
Fibers and ground substance synthesized and secreted by CT cells. (blasts)
Simple definition of ground substance
Fluid, semi-fluid, gelatinous, or hard substance that CT cells (blasts) secrete into the ECM
What types of fibers are found in connective tissues?
Collagen, elastic, and reticular
What is functioned determined by in the connective tissues?
Functions are determined by the properties of the extracellular matrix components
What are the five types of connective tissues?
Loose, dense, cartilage, bone, and blood
What are two types of loose connective tissue?
Areolar connective tissue and Adipose connective tissue
How are fibers arranged in loose connective tissue?
loosely arranged fibers
What type of cells enter the connective tissues?
Cells involved in body defence
What cells reside in loose connective tissues?
Fibroblasts and adipocytes
What types of fibers are found in loose connective tissue and what is their function?
Collagen, elastin, and reticular fibers provide strength, elasticity, and support
What is the consistency of ground-substance in loose connective tissue?
Semi-fluid
What are the three characteristics of Areolar connective tissue?
Cell types: Fibroblasts and immune cells
Fiber types: Collagen, elastic, and reticular
Ground Substance: Semi-fluid
What are the locations of areolar connective tissue?
Beneath all epithelial tissues
Subcutaneous layer
Papillary layer
What are the functions of areolar connective tissue?
Strength
Elasticity
Support
Nutrient diffusion
What are the three characteristics of adipose connective tissue?
Cell types: Contains adipocytes (derived from fibroblasts)
Very little extracellular matrix
Cytoplasm and nucleus are pushed to the periphery
What are the locations of adipose connective tissue?
Subcutaneous layer of skin
Around heart and kidneys
Yellow bone marrow
What are the functions of adipose connective tissue?
Stores lipids for fuel
Thermal insulation
Cushioning organs and joints
Endocrine function
What does areolar connective tissue look like?
Strings everywhere with fibroblasts. Thin elastic fibers look like hairs running across the top of the thicker fibers
What does adipose connective tissue look like?
looks like bubbles printed on a white paper