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Canada (162,415)
BISC 101 (55)

Lab 2

3 Pages

Biological Sciences
Course Code
BISC 101
Derek Bingham

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Lab 2 – Tissue Structures 1 Part A – Tissue Comparison Objectives:  Compare two types of epithelial tissue.  Compare four types of connective tissue.  Examine the structure of nervous tissue. Procedure:  Types of tissue being examined: Epithelial – squamous, cuboidal, columnar, Connective – adipose, hyaline cartilage, fibrous, and blood, Muscle – smooth, Neural Epithelial Tissue – Squamous, Cuboidal, Columnar 1. Examine the two slides of simple epithelial tissue (cuboidal and columnar). 2. Draw two cells of each tissue type each in the space provided. From each slide, label the following structures for each cell type: cell membrane, nucleus, and cytoplasm. Calculate actual size and drawing magnification for the length of one cell in each of your drawings. 3. List the major characteristics and functions of each tissue type in Table 1. Table 1. Simple Epithelial Tissue. Tissue Characteristics Function(s) Locations in the Body (2) Allows for easy movement of materials across the Simple squamous lines air surface of the cells sacs of the lungs and lines Found primarily where Squamous Flattened cells there will be an exchange blood vessels. Stratified squamous of materials across the epithelium is the skin. surface of the lining or covering Simple cuboidal is found lining ducts of some Provides protection glands and ducts of the May be active (pumping Cuboidal Cube-shaped cells material in or out of kidney, lines blood vessels Stratified squamous lumen) or passive epithelium can be found in the skin Simple columnar can be found lining stomach, Often specialized so they intestines, digestive can do a variety of glands, gall bladder Columnar Elongated cells, “columns” functions in the tissues Stratified columnar is they line. found in male urethra and large excretory ducts of some glands Connective Tissue – Adipose, Hyaline Cartilage, Fibrous, and Blood 1. Compare four types of connective tissue on the slides that have been provided and draw them below. Lab 2 – Tissue Structures 2 2. Calculate actual size for the following: width of an adipocyte in an adipose tissue cell, length of a fibroblast nucleus in fibrous tissue slide, the width of a lacuna in hyaline cartilage, and the diameter of a white blood cell from the blood smear. 3. Fill in Table 2 with the characteristics and functions of each type of connective tissue examined above. Table 2. Connective Tissues. Tissue Characteristics Function(s) Locations in the Body (2) Adipose Most abundant cartilage in the body Contains a resilient gel as Provides smooth surfaces Ends of long bones, ground substance and for movement at joints, anterior ends of ribs, Hyaline Cartilage appears bluish-white and flexibility and support nose, larynx, trachea,
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