As part of embryonic development, the neural tube will become the

yes its like the dead sea which is full of salt which makes you stay afloat

so yes an egg will float in salt

a motor homunculus represents a map of brain areas dedicated to motor processing for different anatomical divisions of the body.

homunculus represents the importance of various parts of your body as seen by your brain. as a result, they take up a lot of brain space. although the cortical homunculus is a curiosity, penfield's work in mapping the brain's relationship to the body was invaluable.