This video is a good demonstration for a reflex arc. A reflex arc is a neural pathway that controls a reflex action. In higher animals, most sensory neurons do not pass directly into the brain, but synapse in the spinal cord. This characteristic allows reflex actions to occur relatively quickly by activating spinal motor neurons without the delay of routing signals through the brain, although the brain will receive sensory input while the reflex is carried out. | EM-SportScience

Cremaster muscle is a paired structure made of thin layers of striated and smooth muscles. In Greek, the word means suspender. The main function of cremaster muscle is to pull the testes upward towards inguinal ring. The cremasteric reflex is brought on by such things as cold, touch, and anxiety. The cremasteric reflexive can be stimulated by rubbing a nerve on the inner thigh and buy emotions such as fear and laughter. Cremaster muscle comes from your obliques. Therefore, if you’re overworking