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.
Basically there are few differences between male and female urethra. Male urethra is much longer than female urethra as it extends the length of the penis. Male urethra, about 20cm in length, comprises three parts; prostatic, membranous, and spongy. Prostatic urethra runs from the bladder to the part of the urethra where the vas deferens connects. Membranous urethra runs through the urinary sphincter, and the last part, spongy urethra runs though the length of the penis.