- 7.3/10115 votes
#1 - The Planet Cell
Season 1 Episode 1 - Aired 9/13/1987
The world of cells is incredible! Activating enzymes, stopping viruses, and managing the body’s police force: it’s all in a day’s work for Teacher.
Director: N/A
Writer: N/A
- 7.2/10103 votes
#2 - Birth
Season 1 Episode 2 - Aired 9/20/1987
After the first cell is fertilized, division and diversification take place to create the 60 trillion cells of the human body.
Director: N/A
Writer: N/A
- 7.5/1095 votes
#3 - The Body Sentinels
Season 1 Episode 3 - Aired 9/27/1987
The body’s police force is taught to neutralize its enemies (microbes and viruses), which reproduce at an alarming rate! It’s a very complex task.
Director: N/A
Writer: N/A
- 7.5/1084 votes
#4 - The Bone Marrow
Season 1 Episode 4 - Aired 10/4/1987
Red blood cells, the body’s police force, are created in the bone marrow but sometimes, the factory breaks down and wayward policemen come out. Uh oh!
Director: N/A
Writer: N/A
- 7.4/1088 votes
#5 - The Blood
Season 1 Episode 5 - Aired 10/11/1987
The steadfast red blood cells have come down with the flu! Pedrito and Psi get some help from the Teacher’s antibodies to beat the enemy.
Director: N/A
Writer: N/A
- 7.4/1079 votes
#6 - The Tiny Platelets
Season 1 Episode 6 - Aired 10/18/1987
Pedrito cuts his finger with a dirty knife. While the platelets try to cure the wound, the white blood cells fight off the filthy invaders.
Director: N/A
Writer: N/A
- 7.4/1078 votes
#7 - The Heart
Season 1 Episode 7 - Aired 10/25/1987
Globus takes Hemo and Globina on a tour through the human body’s cathedral: the heart and circulatory system. It’s an impressive adventure.
Director: N/A
Writer: N/A
- 7.3/1073 votes
#8 - Breathing
Season 1 Episode 8 - Aired 11/1/1987
Air bubbles travel from the nose to the lungs. In the swampy, mucus-filled areas, they meet the red blood cells that transport them around the body.
Director: N/A
Writer: N/A
- 7.3/1073 votes
#9 - The Brain
Season 1 Episode 9 - Aired 11/8/1987
Teacher introduces Hemo and Globina to the most mysterious organ: the brain. They learn about behavior, the senses, and much more.
Director: N/A
Writer: N/A
- 7.2/1071 votes
#10 - The Neurones
Season 1 Episode 10 - Aired 11/15/1987
The body’s messengers run around sending and receiving information about feelings like hunger and cold. They work day and night and never take breaks.
Director: N/A
Writer: N/A
- 7.1/1070 votes
#11 - The Eye
Season 1 Episode 11 - Aired 11/22/1987
Eyes are magical! They break down and transmit images to the brain. What happens if a speck of dust gets into one? It’s tear enzymes to the rescue.
Director: N/A
Writer: N/A
- 7.1/1069 votes
#12 - The Ear
Season 1 Episode 12 - Aired 11/29/1987
The ear is composed of cells that sense vibrations and transmit them to the brain. Then, the brain transforms them into words and sounds.
Director: N/A
Writer: N/A
- 7.6/1069 votes
#13 - The Skin
Season 1 Episode 13 - Aired 12/6/1987
Skin is the first barrier against external aggression and helps eliminate waste. From cuts and scrapes to bug bites, it stays pretty busy.
Director: N/A
Writer: N/A
- 7.4/1069 votes
#14 - The Mouth and the Teeth
Season 1 Episode 14 - Aired 12/13/1987
Yum! Candy! But sugar strengthens the bacteria around the gums and attacks the tooth enamel, which can cause cavities.
Director: N/A
Writer: N/A
- 7.4/1068 votes
#15 - The Digestion
Season 1 Episode 15 - Aired 12/20/1987
After a tasty meal the food starts its journey to the stomach where it will be broken down depending on what properties it has. But don’t overdo it!
Director: N/A
Writer: N/A
- 7.2/1063 votes
#16 - The Liver Factory
Season 1 Episode 16 - Aired 12/27/1987
The liver is fundamental. It doesn’t weigh a lot but it uses almost as much oxygen as the heart! It makes proteins, corpuscles, and helps heal cuts.
Director: N/A
Writer: N/A
- 7.2/1065 votes
#17 - The Kidneys
Season 1 Episode 17 - Aired 1/3/1988
Toxic elements head to the kidneys where they are categorized. The good ones are salvaged but the bad ones are sent to the bladder. Have a good trip!
Director: N/A
Writer: N/A
- 7.3/1066 votes
#18 - The Lymphatic System
Season 1 Episode 18 - Aired 1/10/1988
The huge lymph network transports everything to the body’s factories. Infectious intruders beware! This place is well protected.
Director: N/A
Writer: N/A
- 7.4/1062 votes
#19 - The Bones and the Skeleton
Season 1 Episode 19 - Aired 1/17/1988
The architecture that protects the body’s organs is magnificent! However, even the slightest fracture can cause significant damage.
Director: N/A
Writer: N/A
- 7.4/1064 votes
#20 - The Muscles and the Fat
Season 1 Episode 20 - Aired 1/24/1988
Muscles account for almost half the weight of the human body. They also need a ton of energy to do their jobs correctly.
Director: N/A
Writer: N/A
- 7.5/1061 votes
#21 - Toxin Wars
Season 1 Episode 21 - Aired 1/31/1988
Combat teams act as preventative barriers and are prepared to defend the cell’s nucleus against toxic gases and contaminants.
Director: N/A
Writer: N/A
- 7.6/1066 votes
#22 - The Vaccination
Season 1 Episode 22 - Aired 2/7/1988
Vaccines bring us so many benefits! People who don’t get vaccinated run the risk of contracting a disease that is stronger than our natural defenses.
Director: N/A
Writer: N/A
- 7.2/1065 votes
#23 - The Hormones
Season 1 Episode 23 - Aired 2/14/1988
At the heart of the hypothalamus, Teacher shows us how this region sends out orders to satisfy all the body’s needs.
Director: N/A
Writer: N/A
- 7.4/1064 votes
#24 - The Chain Of Life
Season 1 Episode 24 - Aired 2/21/1988
A walk in the forest is the perfect way to learn about the extraordinary food chain that exists between the sun, vegetation, animals, and man.
Director: N/A
Writer: N/A
- 7.4/1063 votes
#25 - Repairs and Changes
Season 1 Episode 25 - Aired 2/28/1988
Pedrito is 8 years old and is tired after a long day. When he goes to bed, Teacher and his helpers observe the activity that continues during sleep.
Director: N/A
Writer: N/A
The Best Episodes of Once Upon a Time... Life Season 1
Every episode of Once Upon a Time... Life Season 1 ranked from best to worst. Discover the Best Episodes of Once Upon a Time... Life Season 1!
Attention please! Are you ready for an adventurous tour through the human body? With a lot of humour, our physical appearance is being introduced from...
Genres:FamilyAnimationDocumentary
Season 1 Ratings Summary
"The Planet Cell" is the best rated episode of "Once Upon a Time... Life" season 1. It scored 7.3/10 based on 115 votes. Directed by N/A and written by N/A, it aired on 9/13/1987. This episode is rated 0.1 points higher than the second-best, "Birth".