You see - and I think we can all agree on this - that verse is not talking about the literal head, but rather it uses the word "head" figuratively as a symbol of authority.
Uyabona - futhi ngicabanga ukuthi sonke singavumelana ngalokhu - lelo vesi alikhulumi ngekhanda elingokoqobo, kepha lisebenzisa igama elithi "ikhanda" ngokomfanekiso njengophawu lwegunya.