You arrive to an unconscious male lying on the pavement. as you approach the patient, you note that he has chest rise and fall, but does not respond when you touch him. what is the first and most important thing that you can do for this patient?

d. the weight of the book

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.