1 The Directions: Complete the statement by choosing the answer from the box below. includes the penis, scrotum, testes, epididymis. vas deferens, prostate, and seminal vesicles. 2. It is an elongated muscular organ full of blood vessels and sensitive nerves. 3. The is the thick-skinned sac that surrounds and protects the testes. 4. It consists of a single coiled microscopic tube that measures almost 20 feet (6 meters) in length. 5. The is a firm tube that transports sperm from the epididymis. male reproductive system Penis vas deferens testes epididymis scrotum​