What type of cells secrete insulin?
Alpha cells
Beta cells
Acinar cells
Plasma cells
The Correct Answer is B
B. Beta cells are the pancreatic cells responsible for secreting insulin. Insulin acts to lower blood sugar levels by facilitating the uptake of glucose into cells for energy or storage. In individuals with diabetes mellitus, dysfunction of beta cells can lead to inadequate insulin secretion, resulting in high blood sugar levels.
A. Alpha cells are another type of cell in the pancreas, but they secrete glucagon, not insulin. Glucagon has the opposite effect of insulin, increasing blood sugar levels by stimulating the breakdown of glycogen in the liver.
C. Acinar cells are exocrine cells found in the pancreas that secrete digestive enzymes into the pancreatic ducts. These enzymes aid in the digestion of food in the small intestine. Acinar cells are not involved in the production of insulin.
D. Plasma cells are a type of white blood cell that produces antibodies as part of the immune response. They are not involved in the production of insulin.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
B. Nonsteroidal anti-inflammatory drugs (NSAIDs), including ibuprofen, are known to increase the risk of peptic ulcer formation by disrupting the protective mucosal barrier of the stomach and duodenum.
Long-term or frequent use of NSAIDs can lead to mucosal damage and ulceration.
A. Consuming spicy foods frequently may irritate the lining of the stomach and increase the risk of developing peptic ulcers. However, the number of consumed meals is not specific to the risl of peptic ulcer formation.
C. Green tea consumption is generally not considered a significant risk factor for peptic ulcers. In fact, some studies suggest that compounds found in green tea may have protective effects against the development of peptic ulcers and may help reduce the risk of H. pylori infection, a common cause of ulcers.
D. Bulimia, an eating disorder characterized by binge eating followed by purging behaviors such as vomiting, is a risk factor for peptic ulcers. The repeated exposure of stomach acid to the esophagus and stomach lining due to vomiting can lead to inflammation and ulceration of the gastrointestinal tract.
Correct Answer is B
Explanation
B. Orange juice is highly acidic and can irritate the esophagus, leading to increased heartburn symptoms. Regular consumption of acidic beverages like orange juice can exacerbate GERD symptoms, making this a likely contributing factor to the client's heartburn.
A. Consuming low-fat meats is generally not a contributing factor to heartburn. Low-fat meats are less likely to cause reflux compared to high-fat foods, which can relax the lower esophageal sphincter and increase the risk of acid reflux.
C. Eating dinner early in the evening is generally recommended for managing GERD. This practice allows more time for the stomach to empty before lying down to sleep, reducing the likelihood of acid reflux during the night.
D. Sleeping on a large wedge-style pillow is also generally recommended for managing GERD. Elevating the head and upper body during sleep can help prevent acid from flowing back into the esophagus.
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