Parts of the Circulatory System
What organ pumps blood through the whole body?
The Heart
Which blood cells carry oxygen to the body?
Red blood cells
What is the control center of the body?
The Brain
What sends messages between your brain and body?
Nerves
What gas does the blood drop off at the lungs?
Carbon Dioxide.
What organ works with the heart to add oxygen to blood and remove carbon dioxide?
Lungs
Which blood cells help your body fight sickness?
White blood cells
What two bones protect the nervous system?
The Skull and the Spine.
What kind of action happens automatically without you having to think about it?
Involuntary action
What side of the heart pumps oxygen-rich blood to the body?
Left side
What blood vessels carry blood away from the heart to the rest of the body?
Arteries
What gas does blood carry from the lungs to the rest of the body to help you stay alive?
Oxygen
What part connects the brain to the rest of the body?
The Spinal Cord
What type of neuron helps you feel things like heat or pain?
Sensory Neurons
Why do veins have valves inside them?
To keep the blood moving in the right direction.
What blood vessels carry blood back to the heart and have valves?
Veins
What helps stop bleeding when you get a cut?
Platelets
What part act like wires and carries messages all over the body?
Nerves/Neurons
What type of neuron tells your muscles how to move?
Motor Neurons
What two parts make up the central nervous system?
The Brain and The Spinal Cord
What tiny blood vessels let oxygen and nutrients pass into cells and pick up waste?
Capillaries
What is the liquid part of blood called?
What part of the brain controls things like breathing and heartbeat?
The Brain Stem
What do we call a quick action your body makes without thinking?
Reflex
What part of your nervous system is made of all the nerves outside the brain and spinal cord?
The Peripheral Nervous System