Which of the following cells is least likely to develop into a neoplasia?
Cardiac myocyte
Hepatocyte
Epithelial cell
Lymphocyte
The Correct Answer is A
A. Cardiac myocytes (heart muscle cells) are less likely to undergo neoplastic transformation compared to other cell types. These cells have a very limited ability to proliferate and typically do not undergo the rapid cell division that is characteristic of cancerous growth.
B. Hepatocytes (liver cells) are capable of undergoing neoplastic transformation and can give rise to liver cancer (hepatocellular carcinoma) under certain conditions, such as chronic liver disease or cirrhosis.
C. Epithelial cells, which line body surfaces and cavities, are among the most common cell types to undergo neoplastic transformation. Various cancers, such as skin cancer, lung cancer, and colorectal cancer, arise from epithelial cells.
D. Lymphocytes (a type of white blood cell) can develop into neoplasms, such as lymphomas or leukemias, when they undergo malignant transformation.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Cystine stones are rare and occur due to a genetic disorder called cystinuria. They are not the most common type of renal calculi.
B. Uric acid stones are also relatively common, especially in individuals with gout or those with high levels of uric acid in the urine. However, calcium oxalate is more common.
C. Calcium oxalate is the most common type of renal calculi, accounting for about 70-80% of kidney stones. These stones form when calcium combines with oxalate in the urine.
D. Struvite stones are associated with urinary tract infections caused by urease-producing bacteria. They are less common than calcium oxalate stones.
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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