Fascinating Facts About the Human Body

Your heart beats about _______ times a day, pumping around 2,000 gallons of blood.

• 100,000
• 1000

• 60 to 100

• 10,200

The brain uses about ____ of the body's total oxygen and energy.

• 20%
• 50%
• 30%
• 10%

The average human has about ______ taste buds, which are replaced every two weeks.

• 3000
• 10000
• 1500
• 5000

The masseter, or _______, is the strongest muscle in the body based on its weight.

• swallower
• biter
• chewer
• grinder

The muscles that control your ____ are the most active muscles in your body.

• eyes

• breathing
• running
• walking

You have about 2-4 million sweat glands, and they can produce up to ______ of sweat per day.

• 1 to 2 liters
• 3 gallons

• 500 milliliters
• 10 liters

Bone is about five times stronger than steel of the same _____.

• weight
• length
• density
• volume

Hair grows about ___ inches per month, and the average person has about 100,000 to 150,000 hairs on their head.

• 1 inch
• 2 inches
• 0.5 inch

• 0.25 inches

Fingernails grow about ______ per month, which is faster than toenails.

• 3.5 millimeters

• 5 to 6 millimeters
• 1 to 2 millimeters
• 10 millimeters

The liver performs over ________, including detoxification, protein synthesis, and production of biochemicals necessary for digestion.

• 250 different functions

• 1000 different functions

• 500 different functions

• 300 different functions