Human Body Facts and Functions

The video explores fascinating facts about the human body, including the extensive length of lung airways, the growth rate of nails, and the function of ear bones. It discusses the strength of the femur, lung capacity, and the digestive system's role in preventing food from moving backward. The video also covers the body's temperature regulation, liver functions, blood pH balance, kidney filtration, and the circulatory system. Additionally, it highlights hair growth rates and the transition of newborns to breathing air.

How long are the airways in your lungs if laid end to end?

• 3,600 Kilometers

• 2,400 Kilometers

• 1,200 Kilometers

• 4,800 Kilometers

Which bone is the smallest in the human body?

• Humerus

• Femur

• Tibia

• Stapes

How many bones does an adult human have?

• 256

• 150

• 300

• 206

What is the maximum amount of air your lungs can inhale per minute?

• 13 Liters

• 20 Liters

• 10 Liters

• 15 Liters

What prevents food from falling back out of your mouth when upside down?

• Trachea

• Epiglottis

• Peristalsis

• Diaphragm

What is the optimal body temperature maintained by the hypothalamus?

• 38 degrees Celsius

• 35 degrees Celsius

• 37 degrees Celsius

• 36 degrees Celsius

Which organ is capable of regenerating completely?

• Heart

• Lungs

• Kidney

• Liver

What is the optimal blood pH level maintained by the lungs and kidneys?

• 6.8

• 7.8

• 7.0

• 7.4

How many liters of blood are filtered by the kidneys each day?

• 600 Liters

• 800 Liters

• 400 Liters

• 200 Liters

Which part of the body grows the second fastest?

• Nails

• Hair

• Skin

• Bones