Body Basics
Learn how your child's body works - from head to toe
Understanding Your Child's Body
The human body is an amazing collection of systems that work together to keep us healthy, active, and growing. Understanding how your child's body works can help you better support their health and development.
Explore the topics below to learn about different body systems, organs, and how they function together to keep your child healthy and thriving.
Body Systems & Topics (28)
About Body Basics
→Blood
→Blood Types
→Bones, Muscles, and Joints
→Central Nervous System: The Brain and Spinal Cord
→Digestive System
→Ears
→Endocrine System
→Enzymes
→Eyes
→Female Reproductive System
→Hair
→Heart and Circulatory System
→How Do the Ears Work? (Video)
→Immune System
→Kidneys and Urinary Tract
→Lungs and Respiratory System
→Male Reproductive System
→Metabolism
→Mouth and Teeth
→Nails
→Nervous System
→Peripheral Nervous System
→Skin
→Skin, Hair, and Nails: The Body's Protective Layer
→The Lymphatic System
→The Spleen
→What Is Collagen?
→🔍Key Body Systems Overview
🫀Cardiovascular System
The heart and blood vessels work together to pump blood throughout the body, delivering oxygen and nutrients to all cells.
🫁Respiratory System
The lungs and airways bring oxygen into the body and remove carbon dioxide, essential for breathing and energy production.
🫃Digestive System
From mouth to intestines, this system breaks down food, absorbs nutrients, and eliminates waste to fuel the body.
🧠Nervous System
The brain, spinal cord, and nerves control all body functions, from movement and senses to thoughts and emotions.
🦴Musculoskeletal System
Bones, muscles, and joints work together to provide structure, support, protection, and enable movement.
🛡️Immune System
The body's defense system protects against infections and diseases through specialized cells and organs.
✨Amazing Body Facts
A child's heart beats about 100,000 times per day, pumping blood to every cell in the body.
Babies are born with about 300 bones, which fuse together as they grow into 206 bones in adulthood.
The brain contains about 86 billion neurons that communicate through trillions of connections.
Blood travels about 12,000 miles through the body every day - that's halfway around the Earth!
Children take about 20,000 breaths per day, bringing oxygen to power all body functions.
Skin is the body's largest organ, covering about 2 square meters and protecting everything inside.
More Health Resources
⚠️Medical Disclaimer
The information provided on this page is for educational purposes only and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always consult with your child's pediatrician or qualified healthcare provider if you have concerns about your child's health or development.