Parts of the body
Our biggest organ
Skin
Skeletal System
Consuming nutrients
Eating
The average number of times the human heart beats every day
100,000 times
Percentage of body that is water
60%
Strongest bone in our body
Femur
Converts food into nutrients and energy for the body
Digestive System
The size of the brain if you spread out all the wrinkles
A pillow case!
Number of cells in the human body
37 trillion cells
Tube that connects our mouth to our stomach
Esophagus
Brings oxygen into the body through the lungs and windpipe
Respiratory System
Paying attention in class
The largest human internal organ
The small intestine
The material that the acid in our stomachs is powerful enough to dissolve
Metal!
Breathing tube that connects mouth and nose to lungs
Trachea
Protects the body from diseases
Immune System
Exercising
The lung that is 10% smaller than the other
The left lung is usually smaller that the right to make room for the heart
The nails on our body that grow the fastest
Fingernails grow faster than toenails and both are made of a protein called keratin
Organ that cleans our blood
Liver
Delivers nutrients throughout the body. Made up of the heart, blood, and blood vessels
Cardiovascular/Circulatory System
Process that changes food into energy
Digesting
Number of bones infants have vs. number of bones adults have
270 at birth and then in adulthood, several bones fuse together making a total of 206 bones
The average number of taste buds in adult humans
2000-4000, taste buds are located in the back of your throat, your nose, and your esophagus in addition to your tongue!