【Naming】
【Source】
Ben Jing (Classic of Materia Medica)
【Common Usage Level】
F
【Origin】
It is the testes and penis of the male reproductive organs of the canine animal *Canis familiaris* L.
【Characteristics】
The dried penis is straight and rod-shaped, about 12cm long and about 2cm in diameter. The distal end is slightly pointed, and the other end has a slender vas deferens, which is connected to the testes. The testes are oval, 3-4cm long and about 2cm wide. The whole is light brown and smooth in appearance. The penis part is hard and not easily broken. It has a fishy and foul odor.
【Identification】
The best ones are light yellow in color, with red tendons, long and large strips, thick and strong, and with testicles.
【Category】
Vertebrates