Lecture Exam 2 Study Guide

Lecture Exam 2 Study Guide - Lecture Exam 2 Study Guide...

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Lecture Exam 2 Study Guide Bio446L Human Microscopic and Gross Anatomy Fall 2010 Lecture 6; Chapters 6 and 7 – Connective tissues Briefly list structural characteristics that could be used to distinguish the two general subtypes of connective tissue proper (i.e., loose connective tissues and dense connective tissues). Loose Connective Tissue: Areolar, Adipose, Reticular Areolar: Has collagen, elastic, and reticular ribers. Loosely arranged fibers in a gelatinous ground substance. Fibroblast, macrophages, adipocytes, mast cells, and plasma cells are present. Under most epithelial. Serves as a reservoir for water in the body (edema) Adipose: Reticular collagen is present, as well as adipocytes. Closely packed cells with a small amount of gelatinous ground substance. Fat is stored here. Eyeballs, breasts, protects heart, kidneys. Typically in hypodermis Reticular: Reticular fibers present. Reticular cells present. Loosely arranged fibers in a gelatinous ground substance. Framework for blood vessels, lymphoid organs, lymph nodes, spleen, thymus, bone marrow Dense Connective Tissue: Dense Regular, Dense Irregular Dense Regular: Fibroblasts are present, as well as collagen and some elastic. Parallel arranged bundles of fibers with few cells and a little ground substance. This type of tissue provides great tensile strength. Ligaments, Tendons. Dense Irregular: Fibroblasts, and collagen- some elastic present. IRREGULARLY arranged bundles of fibers with few cells and little ground substance. High tensile strength. Dermis of skin, joint capsules. Hyaline Cartilage: Articular surfaces, tracheal rings,
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Elastic Cartilage: External ear, epiglottis Fibrous Cartilage: Vertebral discs, pubic symphysis, knee meniscus Compact Bone: Bones Describe and/or diagram the extracellular matrix (ECM) of connective tissue. Be sure to include and distinguish between: 1) the three major types of protein fibers, and 2) the gycosaminoglycans, proteoglycans, and multiadhesive glycoproteins of the ground substance. The 3 Major Types of Protein Fibers: Collagen Fibers: Made of the protein collagen, tough and flexible Elastic Fibers: Made of the protein elastin. Strong and stretchable Reticular Fibers: Made of thin collagen fibers with a glycoprotein coating. Branch frequently to form a netlike (reticulate) pattern GAGS: Glycosaminoglycans. Gags are covalently bonded to proteoglycans (large macromolecules composed of a core protein). Gags are responsible for the physical properties of the ground substance. Multiadhesive Glycoproteins: Know the major specialized cells that reside in each of the connective tissue subtypes. Areolar: Fibroblasts, macrophages, adipocytes, mast cells, plasma cells Adipose: Adipocytes Reticular: Reticular cells? Dense Regular:
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This note was uploaded on 02/21/2012 for the course BIO 89515 taught by Professor Janmachart during the Fall '09 term at University of Texas.

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Lecture Exam 2 Study Guide - Lecture Exam 2 Study Guide...

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