The world of cells is incredible! Activating enzymes, stopping viruses, and managing the body’s police force: it’s al...

After the first cell is fertilized, division and diversification take place to create the 60 trillion cells of the hu...

The body’s police force is taught to neutralize its enemies (microbes and viruses), which reproduce at an alarming ra...

Red blood cells, the body’s police force, are created in the bone marrow but sometimes, the factory breaks down and w...

The steadfast red blood cells have come down with the flu! Pedrito and Psi get some help from the Teacher’s antibodie...

Pedrito cuts his finger with a dirty knife. While the platelets try to cure the wound, the white blood cells fight of...

Globus takes Hemo and Globina on a tour through the human body’s cathedral: the heart and circulatory system. It’s an...

Air bubbles travel from the nose to the lungs. In the swampy, mucus-filled areas, they meet the red blood cells that ...

Teacher introduces Hemo and Globina to the most mysterious organ: the brain. They learn about behavior, the senses, a...

The body’s messengers run around sending and receiving information about feelings like hunger and cold. They work day...

Eyes are magical! They break down and transmit images to the brain. What happens if a speck of dust gets into one? It...

The ear is composed of cells that sense vibrations and transmit them to the brain. Then, the brain transforms them in...

Skin is the first barrier against external aggression and helps eliminate waste. From cuts and scrapes to bug bites, ...

Yum! Candy! But sugar strengthens the bacteria around the gums and attacks the tooth enamel, which can cause cavities.

After a tasty meal the food starts its journey to the stomach where it will be broken down depending on what properti...

The liver is fundamental. It doesn’t weigh a lot but it uses almost as much oxygen as the heart! It makes proteins, c...

Toxic elements head to the kidneys where they are categorized. The good ones are salvaged but the bad ones are sent t...

The huge lymph network transports everything to the body’s factories. Infectious intruders beware! This place is well...

The architecture that protects the body’s organs is magnificent! However, even the slightest fracture can cause signi...

Muscles account for almost half the weight of the human body. They also need a ton of energy to do their jobs correctly.

Combat teams act as preventative barriers and are prepared to defend the cell’s nucleus against toxic gases and conta...

Vaccines bring us so many benefits! People who don’t get vaccinated run the risk of contracting a disease that is str...

At the heart of the hypothalamus, Teacher shows us how this region sends out orders to satisfy all the body’s needs.

A walk in the forest is the perfect way to learn about the extraordinary food chain that exists between the sun, vege...

Pedrito is 8 years old and is tired after a long day. When he goes to bed, Teacher and his helpers observe the activi...

Pedrito wants to know why his grandpa can’t play ball anymore, so he tells Pedrito an old story about a sphinx.