about your cortical area 5 because according to Neurophysiology:
'Some of the neurons in area 5 are concerned with aiming the hand toward an object and manipulating it,'
and be careful about your area 7 too:
'whereas some of the neurons in area 7 are concerned with hand-eye coordination.'
You don't need to have a brain at all if someone can give you a hand job:
'Genital manipulation in male spinal animals and humans produces erection and even ejaculation. In female spinal dogs, vaginal stimulation causes tail deviation and movement of the pelvis into the copulatory position.'
'Some of the neurons in area 5 are concerned with aiming the hand toward an object and manipulating it,'
and be careful about your area 7 too:
'whereas some of the neurons in area 7 are concerned with hand-eye coordination.'
You don't need to have a brain at all if someone can give you a hand job:
'Genital manipulation in male spinal animals and humans produces erection and even ejaculation. In female spinal dogs, vaginal stimulation causes tail deviation and movement of the pelvis into the copulatory position.'