1. The slide below is a section of the small intestine. In this tissue, the collagen fibers are interwoven and irregularly arranged (i.e. they run in more than one direction), which provides great structural strength. The tissue is well suited for areas where tension is exerted from many different directions, such as the dermis of the skin, submucosa of the gastrointestinal tract and fibrous capsules of organs and joints. It also forms fascia, the tough, white material that surrounds muscles.
What classification of connective tissue is the area marked by 1?
2. The tissue below is a loose connective tissue comprised of a semi-fluid ground substance containing several kinds of loosely-arranged fibers and cells. This is the most widespread type of connective tissue. It is found in every microscopic section of the body, fastening down the skin, membranes, vessels and nerves as well as binding muscles and other parts together. There are two types of fibers, the most numerous of which are thicker, lightly-staining collagenous fibers that crisscross the matrix in a random fashion. Thinner, more darkly stained elastic fibers composed of the protein elastin can also be seen. The principal type of cells seen are lightly-staining fibroblasts that secrete the matrix materials. Identify the marked areas.
These short answer questions belong to Biology. The 1st and the 2nd questions discuss about the connective tissue of small intestine and to identify the marked areas of a loose connective tissue.
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