... protect the testicles and to help provide them with optimal conditions to produce sperm cells It’s divided into two sacs, one for each testicle The testicles Also called testes The testicles ... Rationale: The testicles have two functions: the production of sperm cells and the secretion of testosterone 43 Copyright © 2012 Pearson Education, Inc All rights reserved 17 The testicles are ... their journey out of a male’s body? a testes, vas deferens, urethral opening, epididymis b testes, epididymis, vas deferens, urethral opening c vas deferens, testes, urethra, ejaculatory duct d...