What organ pumps blood through the body?
Heart
What is the main function of the digestive system?
To break down food into nutrients
What is the control center of the nervous system?
Brain
What organ carries signals from the brain to the body?
Spinal cord
Where does most digestion take place?
Small intestine
What is the name of the red liquid that carries oxygen?
Blood
What muscle helps you breathe by moving up and down?
Diaphragm
What organ is used to breathe in air?
Lungs
What is the name of the tube that connects your throat to your lungs?
Trachea
What is the main function of the respiratory system?
To exchange oxygen and carbon dioxide
What part of the blood fights infection?
White blood cells
Which system includes bones and provides structure?
Skeletal system
Which two systems work together to deliver oxygen to the body?
Respiratory and circulatory
What cells make up the nervous system?
Neurons
Which vessels carry blood away from the heart?
Arteries
What tiny air sacs in the lungs exchange gases with the blood?
Alveoli
What is the largest artery in the body?
Aorta
What organ produces bile to help digest fats?
Liver
Which two systems work together to allow movement?
Muscular and skeletal systems
Which system controls hormones and growth?
Endocrine system
What is the name of the muscle movements that push food through the digestive tract?
Peristalsis
What part of the neuron receives messages?
Dendrite
Which part of the brain controls balance and coordination?
Cerebellum
What acid helps break down food in the stomach?
Hydrochloric acid
Which system protects your body and includes skin?
Integumentary system