Draw a labelled diagram of the human male reproductive system. Write the jobs of the testes, the vas deferens and the seminal vesicles.

1. 1 · Open in one line. The male reproductive system makes sperms and carries them out of the body.
2. 2 · Testes. Make sperms and testosterone; they lie in the scrotum because sperm formation needs a lower temperature.
3. 3 · Vas deferens and urethra. The vas deferens carries sperms and joins a tube from the bladder; the urethra carries both sperms and urine.
4. 4 · Glands. The seminal vesicles and prostate add a fluid for the transport and nutrition of sperms.
5. 5 · Draw the system. [Diagram: urinary bladder, seminal vesicle, prostate gland, vas deferens, urethra, penis, testis, scrotum]
6. 6 · Link to daily life. Changes such as a cracking voice come from testosterone and are a normal part of growing up.
7. 7 · Close in one line. Each part has one job: making, nourishing or carrying sperms.

Scoring tip: Do not confuse the ureter (kidney to bladder) with the urethra (bladder to the outside).