Anatomy & Physiology Reproductive #3
Which is an external structure of the male reproductive system?
The testes are internal, not external, structures of the male reproductive system. The testes are also classified as an endocrine organ because they secrete testosterone.
The scrotum is an external structure of the male reproductive system. It is a pouch of skin that contains the testicles, an internal male reproductive structure.
- Seminal vesicle
The seminal vesicles are internal, not external, structures of the male reproductive system that attach to the vas deferens near the bladder. They provide energy for sperm motility.
- Ejaculatory duct
The ejactulatory ducts are internal, not external, structures of the male reproductive system that connect the seminal vesicles and the vas deferens. Sperm enters the ejaculatory ducts from the vas deferens.
The male reproductive system consists of both internal and external structures.
The organs of the male reproductive system are classified as either external organs or internal organs. There are two external organs, the penis and the scrotum. The internal male reproductive organs include the ejaculatory ducts, epididymis, prostate, seminal vesicles, testes, urethra, and vas deferens.
Test Taking Tip
Eliminate wrong answers! Consider each answer choice asking yourself, “Is this an external
male reproductive structure?”