Key:
1) Ureter
2) Opening of ureter
3) Rugae of the Urinary bladder
4) Urinary bladder
5) Corpus cavernosum
6) Spongy urethra (Aka: Penile urethra)
7) Glans penis (head)
8) Navicular fossa
9) Cremaster muscle
10) Scrotum
11) Testis
12) Epididymis
13) Pampiniform plexus of veins
14) Spermatic cord
15) Prostatic urethra
16) Ejaculatory duct
17) Seminal vesicle
18) Trigone of the urinary bladder