Metals in Toxicology
Q: True or False: Chromium (VI) is less toxic and carcinogenic than Chromium (III).
Did You Know?
This statement is true. Endocervical cells line the endocervical canal and are glandular columnar cells. Their arrangement in a cervical smear is a critical diagnostic feature. When viewed from the top (en face), a sheet of these cells often resembles a 'honeycomb' because the cell borders are distinct, and the evenly spaced nuclei are surrounded by clear or vacuolated cytoplasm, creating a pattern like the hexagons in a beehive. When viewed from the side, the columnar cells align next to each other with their nuclei basally located, creating a neat, linear array that looks like a 'picket fence' or 'palisade.' The presence of well-preserved endocervical cells or transformation zone components in a smear is an important quality indicator, showing that the sample adequately sampled the critical squamocolumnar junction.
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