The Incredible Human Machine Practice Question Guide With Practical Answers.

What is the value of the human body in dollars? - correct answer 20 dollars What is the largest single organ in the human body? - correct answer Skin How many particles of skin do we shed each hour? - correct answer 600,000 What is the percent of dust in our homes that is made of skin? - correct answer 80 percent How long does it take for us to develop a new coat of skin? - correct answer A month How many holes or pores do we have in our skin? - correct answer 2 million How many photoreceptors are found in the retina? - correct answer 120 million What does the laser do to fix the damaged blood vessels in Steven Tyler's voice box? - correct answer Repairs damaged blood vessels (Seals off damaged blood vessels to stop the bleeding) How many different odors can we smell with every breath? - correct answer 10,000 How much air do humans take in with each relaxed breath? - correct answer A pint How many times a day do we breath? - correct answer 20,000 How many alveoli are found in our lungs? - correct answer 300 million How many capillaries are found in the body? - correct answer 10 billion How many white blood cells are found in a drop of blood? - correct answer 400 How long is the human digestive tract - correct answer 30 feet How much saliva do we produce in a day? - correct answer A pint What is our largest body's internal organ? - correct answer Liver How many muscles are there in the human body? - correct answer 650 What percent of body mass is made of bones? - correct answer 15 percent How many joints are there in the human body? - correct answer 187 How many egg cells are in the human ovary? - correct answer 1 million How many egg cells actually get released? - correct answer 400 How many sperm cells are produced by the human male in a day? - correct answer 14 million How many sperm actually make it into the egg? - correct answer One In which week of pregnancy can a primitive heart by seen? - correct answer Week 8 What is the most complex organ in the human body? - correct answer Brain How fast do messgaes travel in neurons? - correct answer 200 mph What part of the brain is used in meditation? - correct answer Prefrontal cortex What percent of our total oxygen in our body is used by the brain? - correct answer 20 percent