What would happen if your patient did not have alpha cells of the pancreas?
They would not be able to secrete insulin.
They would not be able to secrete glucagon.
They would not be able to secrete somatostatin and gastrin.
They would not be able to secrete pancreatic polypeptides.
The Correct Answer is B
A. Insulin is secreted by beta cells of the pancreas, not alpha cells. Therefore, a lack of alpha cells would not affect insulin secretion.
B. Alpha cells of the pancreas are responsible for secreting glucagon, which helps raise blood glucose levels by promoting the release of glucose from the liver. Without alpha cells, glucagon secretion would be impaired.
C. Somatostatin and gastrin are secreted by delta cells and G cells, respectively, not alpha cells. Therefore, a lack of alpha cells would not prevent the secretion of these hormones.
D. Pancreatic polypeptides are secreted by F cells in the pancreas, not alpha cells. Therefore, a lack of alpha cells would not affect the secretion of pancreatic polypeptides.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. While Crohn disease can affect any part of the gastrointestinal tract, it often affects the small intestine, particularly the ileum. However, the location alone does not explain the increased risk of obstruction.
B. Certain foods, such as spicy foods, may exacerbate symptoms of Crohn disease, but this is not the primary reason it causes intestinal obstruction.
C. Crohn disease causes inflammation that can lead to the formation of granulomas, particularly in the submucosal layers. These granulomas contribute to fibrosis and narrowing of the bowel, which can lead to intestinal obstruction. This is a key feature of Crohn disease that makes it more likely to cause obstruction compared to ulcerative colitis.
D. Abdominal pain and watery diarrhea are common symptoms of both Crohn disease and ulcerative colitis, but they are not directly related to the increased risk of obstruction in Crohn disease.
Correct Answer is C
Explanation
A. Pleural effusion involves the accumulation of fluid in the pleural space, which typically causes a decrease or absence of breath sounds, not wheezing.
B. Emphysema is a type of chronic obstructive pulmonary disease (COPD) that leads to damage of the alveoli and air sacs, which may result in wheezing, but it is not the most direct cause of high-pitched wheezing.
C. High-pitched wheezing is often a result of airway constriction or narrowing, which occurs in conditions like asthma, bronchitis, or anaphylaxis. The sound is caused by turbulent airflow through narrowed airways.
D. Hemoptysis refers to coughing up blood and does not cause wheezing. It is a symptom that may be associated with various respiratory conditions, but it does not directly cause the wheezing sound.
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