Superficial external pudendal artery: The superficial external pudendal artery (superficial external pudic artery) arises from the medial side of the femoral artery, close to the superficial epigastric artery and superficial iliac circumflex artery.Pampiniform venous plexus: The pampiniform plexus is a network of many small veins found in the human male spermatic cord. It is formed by the union of multiple spermatic veins from the back of the testis and tributaries from the epididymis.CryptorchidismInguinal hernia surgery: Inguinal hernia surgery refers to a surgical operation for the correction of an inguinal hernia. Surgery is not generally advised in most cases if the Hernia produces no symptoms; watchful waiting being the recommended option.Solid pseudopapillary tumour: A solid pseudopapillary tumour (also known as solid pseudopapillary neoplasm or, more formally, solid pseudopapillary tumour/neoplasm of the pancreas) is a low-grade malignant neoplasm of the pancreas of papillary architecture that typically afflicts young women.Umbilical vein: The umbilical vein is a vein present during fetal development that carries oxygenated blood from the placenta to the growing fetus.Vestibular system: The vestibular system, in most mammals, is the sensory system that provides the leading contribution about the sense of balance and spatial orientation for the purpose of coordinating movement with balance. Together with the cochlea, a part of the auditory system, it constitutes the labyrinth of the inner ear in most mammals, situated in the vestibulum in the inner ear (Figure 1).Blood–testis barrier: The blood–testis barrier is a physical barrier between the blood vessels and the seminiferous tubules of the animal testes. The name "blood-testis barrier" is misleading in that it is not a blood-organ barrier in a strict sense, but is formed between Sertoli cells of the seminiferous tubule and as such isolates the further developed stages of germ cells from the blood.Post and core: A post and core (colloquially known as a "post" or "dental post") is a type of dental restorationEndoanal ultrasound: Endoanal ultrasound is a type of medical investigation which images the structures of the anal canal.Electronic apex locator: 200px|right|thumb