Which of the following is the correct list of tooth anatomy from the most superficial to the deepest?
Cement, root canal, enamel
Enamel, root canal, dentin
Dentin, enamel, cement
Enamel, dentin, pulp
Crown, enamel, dentin
The Correct Answer is D
A. Cement, root canal, enamel: Cement covers the root, not the outermost crown, and enamel is actually the most superficial layer of the crown, not root canal.
B. Enamel, root canal, dentin: Dentin lies between enamel and the pulp/root canal, so this order is incorrect.
C. Dentin, enamel, cement: Enamel is above dentin; cement is part of the root, not the crown.
D. Enamel, dentin, pulp: Enamel is the outermost protective layer, dentin is beneath it, and pulp is the innermost part containing nerves and blood vessels.
E. Crown, enamel, dentin: The crown is a region, not a tissue. The question asked for tissue layers, not anatomical regions.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Store fat-soluble vitamins: Hepatocytes store vitamins A, D, E, and K.
B. Detoxify toxic chemicals: Hepatocytes metabolize and detoxify substances like drugs and alcohol.
C. Process nutrients: They metabolize carbohydrates, lipids, and proteins, modifying absorbed nutrients.
D. Produce digestive enzymes: Hepatocytes do not produce digestive enzymes; that is the role of the pancreas and other gastrointestinal organs.
Correct Answer is D
Explanation
A. The kidneys are retroperitoneal: Kidneys lie behind the peritoneum, making them retroperitoneal organs.
B. The ureters connect the kidneys to the urinary bladder: The ureters transport urine from each kidney to the bladder.
C. The urethra of males is longer than the urethra of females: The male urethra is significantly longer, due to its passage through the penis.
D. The kidneys are at equal heights within the pelvic cavity: This is incorrect-the right kidney is lower than the left due to the position of the liver. Also, kidneys are located in the upper abdomen, not the pelvic cavity.
E. The right kidney is located more inferiorly than the left kidney: True-the right kidney lies lower than the left because of the liver's size.
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