The correct answer is false.
It is false that Egyptians did not know much about the human body.
Egyptians indeed knew about the human body. Egyptians were effective in practicing ancient medicine and people from other tribes consulted them, as was the case of the Hittites, Assyrians, or Persians. Egypt had renown medicine men and woman such as Imhotep, Merit-Ptah, Pesehet, Qar, and Hesyre. So yes, medicine man and woman were relevant in Egypt.