A.
To determine: The possible mechanism where the ultraviolet radiation promotes development of malignant skin lesions.
Introduction: Cancer can be defined as the uncontrolled growth and proliferation of cells that compete with the normal cells for nutrition, space and eventually cause the death of normal cells. Cancer can be of different types depending upon the type of cells, organ affected and stage. The spreading of cancer to other places in the body is called metastasis.
B.
To determine: The important clinical signs that aid in distinguishing dysplastic nevus from malignant melanoma.
Introduction: Neoplasm is referred to as an abnormal growth of cells or a tissue that forms a tumor. These can be adenoma, carcinoma, papilloma or melanoma. Chemotherapy is not a form of neoplasm.
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EBK ESSENTIALS OF PATHOPHYSIOLOGY
- Identify the indicated tissue? (stem x.s.) parenchyma collenchyma sclerenchyma ○ xylem ○ phloem none of thesearrow_forwardWhere did this structure originate from? (Salix branch root) epidermis cortex endodermis pericycle vascular cylinderarrow_forwardIdentify the indicated tissue. (Tilia stem x.s.) parenchyma collenchyma sclerenchyma xylem phloem none of thesearrow_forward
- Identify the indicated structure. (Cucurbita stem l.s.) pit lenticel stomate tendril none of thesearrow_forwardIdentify the specific cell? (Zebrina leaf peel) vessel element sieve element companion cell tracheid guard cell subsidiary cell none of thesearrow_forwardWhat type of cells flank the opening on either side? (leaf x.s.) vessel elements sieve elements companion cells tracheids guard cells none of thesearrow_forward
- What specific cell is indicated. (Cucurbita stem I.s.) vessel element sieve element O companion cell tracheid guard cell none of thesearrow_forwardWhat specific cell is indicated? (Aristolochia stem x.s.) vessel element sieve element ○ companion cell O O O O O tracheid O guard cell none of thesearrow_forwardIdentify the tissue. parenchyma collenchyma sclerenchyma ○ xylem O phloem O none of thesearrow_forward
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