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- Will has just been diagnosed with melanoma on the anteromedial surface of his thigh. Melanoma is the most dangerous form of skin cancer, in large part because it tends to spread through the body (metastasize) fairly quickly. To determine if Will’s cancer has metastasized, Will’s doctor takes a sample of tissue from his lymph nodes and looks for the presence of cancer cells. If cancer cells are found in the lymph nodes, Will may have some lymph nodes surgically removed. Will’s doctor warns him that he may experience uncomfortable swelling in his leg if this happens A) Explain why Will’s doctor is looking at the inguinal lymph nodes first to determine if the melanoma has spread. (A complete answer will include an explanation of why the ymph nodes and why these lymph nodes in particular.) B) Use what you’ve learned about the lymphatic system to explain why removal of the lymph nodes may cause swelling in Will’s leg.Carina is a 15 year-old girl presents with acute-onset skin eruptions on her face. A punch biopsy obtained from her normal skin is shown in the figure below. Which of the following cells synthesize the structure labeled by the black arrow in the figure? Describe its characteristics. a. fibroblast b. plasma cells c.mast cells d.macrophagesIn the lungs of smokers, a process called metaplasia occurs in which the normal lining cells of the lung are replaced by squamous metaplastic cells (many layers of squamous epithelial cells). Functionally, why is this an undesirable body reaction to tobacco smoke? HINT Your answer should mention the structure and function of the normal lining cells of the lung.
- Systemic lupus erythematosus, or lupus, is a condition that sometimes affects young women. It is a chronic (persistent) inflammation that affects all or most of the connective tissue proper in the body. Suzy is told by her doctor that she has lupus, and she asks whether it will have widespread or merely localized effects within the body. What would the physician answer?The disease pemphigus vulgaris involves a patient’s own immune system attacking the desmosomes between the epithelial cells of the skin. What changes would you expect to see with this disease?What is/are the functions of the following: a. Lecithin Granules b. Hyaline Bipolar Granules c. Stichiocytes ........ d. Spicule
- Which of the following cells is a granulocyte? Select one: a. Lymphocyte O b. Eosinophil O c. Monocyte d. MacrophageMyelofibrosis is a disorder in which inflammation and scar tissue formation in the bone marrow impair hemopoiesis. One sign is an enlarged spleen. Why?The collagen of areolar tissue is produced bya. macrophages.b. fibroblasts.c. mast cells.d. leukocytes.e. chondrocytes.
- Monocytes are formed when stem cells divide and specialise in the bone marrow. Where in the body do these cells form macrophages? A B C D lymph nodes blood plasma bone marrow tissue fluidWhich cells are the most adherent to the subtrate (flattest)? Least adherent (roundest)? What is the advantage of each? Fibroblasts Epithelial cells Lymphocytes MacrophagesAfter his surgery, Nilesh developed fever, Prior to surgery, he was undergoing chemotherapy with drugs that are known to kill healthy bone marrow cells as well as cancerous cells. Considering this, why do you think Nilesh'fever is of particular concern to his medical team
