The "Life Support" Systems
This system uses the heart to pump oxygen and nutrients to every cell in the body.
What is the Circulatory System?
This system uses electrical impulses to send "instant messages" between the brain and the body.
What is the Nervous System?
This system provides the rigid framework of the body and protects vital organs like the heart and brain.
What is the Skeletal System?
When you exercise, these two systems speed up together to deliver more oxygen to tired muscles.
What are the Circulatory and Respiratory systems?
These white blood cells are the "soldiers" of the Immune system that hunt down and kill bacteria.
What are Leukocytes (or Lymphocytes)?
This system is responsible for the exchange of oxygen and carbon dioxide.
What is the Respiratory System?
This system uses glands to release hormones that regulate growth and metabolism.
What is the Endocrine System?
This system pulls on bones to create movement and is responsible for the beating of your heart.
What is the Muscular System?
When you eat a sugary snack, the Digestive system absorbs glucose, while this system releases insulin to manage it.
What is the Endocrine system?
This system produces oily secretions and sweat to prevent the growth of harmful bacteria on the surface of the body.
What is the Integumentary System?
This system breaks down food into glucose and other nutrients for energy.
What is the Digestive System?
This system identifies and destroys foreign invaders like bacteria and viruses.
What is the Immune System?
This specific part of the Nervous system consists of the brain and spinal cord.
What is the Central Nervous System
If you touch a hot stove, the Nervous system senses the heat, but this system actually moves your hand away.
What is the Muscular system?
This specialized "wall" in the Nervous system protects the brain from harmful chemicals and bacteria circulating in the blood.
What is the Blood-Brain Barrier?
This system filters the blood and removes liquid waste to maintain water balance.
What is the Urinary (Excretory) System?
This system drains fluid from tissues and helps transport white blood cells.
What is the Lymphatic System?
These connective tissues attach muscles to bones, allowing the muscular system to move the skeletal system.
What are Tendons?
This system produces the white blood cells that the Circulatory system then transports to the site of an infection.
What is the Immune (or Lymphatic) system?
This organ in the Lymphatic system acts as a giant filter for the blood, removing old red blood cells and holding a reserve of white blood cells.
What is the Spleen?
The largest organ in the body, this system protects internal organs and regulates temperature.
What is the Integumentary System (Skin)?
This system is responsible for the production of offspring and the continuation of the species.
What is the Reproductive System?
This is the specialized tissue found inside bones that produces new red and white blood cells.
What is Bone Marrow?
To maintain body temperature, the Integumentary system (sweat) works with this system to widen blood vessels and release heat.
What is the Circulatory system?
These "checkpoints" in the Lymphatic system swell up when they are busy trapping and destroying pathogens during an infection.
What are Lymph Nodes?