BIO 227 City Colleges of Chicago Thyroid Histology and Pancreas Histology Paper

Science

Bio 227

City Colleges of Chicago Harry S Truman College

BIO

Question Description

Please i need help with both assignments, whatever you need is on it, and please do not copy from the internet my professor uses turnit in for plagiarism. and please i need Thyroid histology done first.

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Pancreas Histology Instructions: • Complete this lab activity • Submit by no later than 11:59 pm. on the due date outlined by the course calendar (Assessments -> Assignments -> Lab Worksheets -> Pancreas Histology) • Please refer to the “Histology Guide” resource (Table of Contents -> Histology Guide -> Search -> Endocrine Glands -> Pancreas) 1. Following is a histological representation of the pancreas. Identify the labelled structure: A: B: B A 2. Endocrine tissue makes up ________ % of the pancreas and is organized into _______. 3. What are the two major types of endocrine cells located within the islets of Langerhans? a. b. 4. Fill in the below table with the hormone that is released from each cell type found in the pancreatic islets. In the last column, briefly describe the actions of each hormone. Cell type Alpha cells Beta cells Hormone released Actions 5. The condition of low blood glucose is termed ____________. a. When blood glucose levels are low, the pancreas secretes the hormone ______. b. In response to the released hormone: i. The liver increases synthesis of new glucose, this process is called ________. ii. The liver breaks down ________ into _______, this process is called ______. 6. The condition of high blood glucose is termed ____________. a. b. c. d. When blood glucose levels are high, the pancreas secretes the hormone ______. What are three tissue types that have receptors for insulin? What are the Glucose Transporters (GLUTs)? In response to insulin: i. The liver cells store glucose in the form of _________. The synthesis of this high glucose storage molecule is called ________. ii. Adipose tissue uptakes glucose -> synthesizes ________. iii. Skeletal muscle cells uptake glucose as an ________ source to fuel contraction. 7. Regarding the classification and transport of both insulin and glucagon: • What structural class do they belong to? • Does blood transport them bound to proteins or freely dissolved? • Do they bind to membrane-bound or intracellular receptors? 8. Exocrine tissue makes up ________ % of the pancreas and is organized into _______. 9. Exocrine tissue secretes ________ for digestion. 10. Diabetes Mellitus • What is diabetes mellitus? • Describe the underlying mechanism for diabetes mellitus type I? • Describe the underlying mechanism for diabetes mellitus type II? o What receptor dynamic is associated with this mechanism? Explain. Thyroid Histology Instructions: • Complete this lab activity • Submit by no later than 11:59 pm. on the due date outlined by the course calendar (Assessments -> Assignments -> Lab Worksheets -> Thyroid Histology) • Refer to the “Histology Guide” resource (Table of Contents -> Histology Guide -> Search -> Endocrine Glands -> Thyroid and Parathyroid Glands) 1. Please refer to the following microscopic structure of the thyroid gland. Identify the labeled structures A-D. A. B. C. D. • • • The structural unit of the thyroid is --------------. Thyroid follicles consist of a layer of simple cuboidal epithelium enclosing a cavity filled with a gel like viscous iodine rich material called --------------containing a glycoprotein called ---------------which contains the --------------hormones. The Inerfollicular spaces are filled by reticular connective tissue, adipose tissue, blood vessels and --------------- cells which produce --------------- hormone. 2. Please refer to the thyroid gland diagram shown below. Label letters A-D. A. B. C. D. 3. Refer to the serum TRH, TSH and T3/T4 serum levels. Identify the patient with each of the following conditions: Grave’s disease, iodine deficiency, destructive tumor of the anterior pituitary gland, proliferative tumor of the anterior pituitary gland Patient Serum TRH Serum TSH Serum T3 & T4 A Low Low Elevated B Elevated Elevated Low C Elevated Low Low D Low Elevated Elevated Patient A: Patient B: Patient C: Patient D: 4. For each hormone in the left-hand column, fill in the below table with the stimulus for release, secretory gland, target cells or tissues on which each hormone acts; and the effects of the hormones on those target cells or organs for each hormone. Hormone Thyroid Hormones (T3 and T4) Calcitonin Parathyroid Hormone (PTH) Stimulus for Secretory Release Gland (Humoral, Hormonal, Neural) Target Cells / Tissues Effects ...
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