The information about the image via the eye is transmitted to the brain along the optic nerve. Different populations of ganglion cells in the retina send information to the brain through the optic nerve. About 90% of the axons in the optic nerve go to the lateral geniculate nucleus in the thalamus.
a 'Male' is a biological term and a Man is more of a gender based term which associates with many 'manly' behaviors in different contexts.
In regular language, a guy and a man are not very different, but ask people individually, and each one has their own opinion. According to some people, guys are those adult males who have grown in age but havenât taken the responsibility of the world upon their shoulders.