Whole Body
What two systems help you run?
Skeletal and muscular systems
What is the nervous system?
Body's command center.
When does the digestion start?
Seeing and smelling food.
What is the longest bone in the human body?
Femur
How many muscles does it take to smile?
17
What is the hardest substance in the human body?
Tooth enamel
How many neurons are in your body?
100 billion
What 2 things does your stomach release to break down food?
Acid and Enzymes
True or False:
Do you have the same number of neck vertebrae as a giraffe?
True
What generates body heat?
muscles
What is the longest type of cell in the body?
The nerve cell
What are the three main parts of the nervous system?
Brain, spinal cord, and nerves
What is the final step of the digestive process?
Large intestine
What shields & protects your heart and lungs?
Ribs
What is the most flexible muscle in the human body?
Tongue
What is the largest organ?
Skin
What major organ regulates everything you do and who you are?
Brain
How long is the GI tract, stretched out?
30 feet
Patella
What is the strongest muscle: the tongue or the jaw?
Jaw
What is the fastest growing nail?
The middle finger
How much does the average adult human brain weigh?
3 pounds
What organ is behind the stomach, and in front of your spine, and on the right side of your body?
Pancreas
How many bones do babies have?
300
What is the fastest muscle in the body?
Eye muscles