Osmium is a heavy metal that binds to lipid and turns black. which of the following would you expect to be labeled most darkly?
a. dorsal columns
b. the dorsal horn of the spinal cord
c. the somatosensory cortex
d. the ventral horn of the spinal cord
e. b and d are correct

Dorsal column.

Explanation:

Osmium metal has the ability to binds with the lipid. Osmium is a heavy metal and it turns the area black whenever it binds with lipid.

Dorsal column sense the ability of  proprioception, touch and vibration. The dorsal column of lipid is expected to be most dark due to the presence of large lipid composition in the dorsal column.

Thus, the correct answer is option (a).

between the two muscle layers is the myenteric or auerbach's plexus, which controls peristalsis. in the colon, the muscularis externa is much thicker because the feces are large and heavy, requiring more force to push along. the stomach has a third layer of muscularis externa: the inner oblique layer.