Explore the urinary system with your class using the 38th video in a series of 47 on the human body. The narrator teaches about the anatomy, the functions of each organ, and how this system filters blood to get rid of waste and...

Humans have 54 bones in their hands, fingers, and wrists, allowing for a variety of movement. The 19th video in a series of 47 introduces learners to the anatomy of the skeletal system. The narrator teaches about flat, short, and...

This exploration of human reproduction continues with a look at testicular anatomy, the steps of sperm production, and how it's influenced by gonadotropin and testosterone. [10:44]