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Magazine Problem 5
True/False: Mark the following statements concerning connective tissue proper and cartilage as true (T) or false (F). If the statement is false, correct it to make it a true statement. Adipocytes contain a large lipid droplet in their cytoplasm. The primary element in dense regular collagenous connective tissue is ground substance. Bundles of collagen fibers are arranged parallel to one another in dense irregular collagenous connective tissue. Loose connective tissue contains all three protein fiber types. Fibrocartilage has a smooth, glassy appearance due to a large amount of ground substance and few visible protein fibers
Problem 6
Which of the following statements about muscle tissue is true? a. Skeletal muscle and cardiac muscle tissues have no striations. b. Smooth muscle tissue is found in the heart. c. The cells of skeletal muscle tissue are long, tubular, and multinucleated. d. Smooth muscle cells are joined by intercalated discs.
Problem 8
The structure in the lungs known as the respiratory membrane is where gases are exchanged鈥攐xygen leaves the lungs and enters the blood, and carbon dioxide leaves the blood and enters the lungs. The respiratory membrane is composed of two extremely thin layers of simple squamous epithelium. Explain how the structure of the respiratory membrane follows its function
Problem 9
Predict what you think might happen if the respiratory membrane were instead composed of two layers of stratified squamous epithelium. Explain.
