Figure 1.

Peripheral nerve control of ejaculation. The efferent stimulation from the 10th thoracic spinal cord to the 2nd lumbar spinal cord is transmitted to ejaculatory‐related organs via the hypogastric nerve (sympathetic nerve), and emission occurs. Also, the efferent stimulation from S2 to S4 via the pelvic nerve (parasympathetic nerve) causes the emission. The afferent stimulation from the penile dorsal nerve is also transmitted to S2‐S4 through the pudendal nerve (somatic nervous system) and the efferent signal from S2 to S4 causes ejection (expulsion) of semen