The clitoral body corpus clitoridis is an internal portion of the clitoris. It is attached to the clitoral glans, which is external. After several inches into the body, it then splits into the clitoral crura, which are also internal and are "V" shaped.
According to Masters and Johnson’s Sex and Human Loving, during the excitement stage the body (shaft) of the clitoris begins to fill with blood and increase in size. As the female reaches maximum arousal (plateau phase), the body continues to fill with blood causing the clitoris to become erect.[1]