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The Human Body

QuestionAnswer
Where are red blood cells created? Inside the bone marrow of your bones
What is the smallest bone found in the human body? The staples or stirrup bone in the middle ear (2.8 millimetres long)
How long does it take the body to digest eaten food? Up to 12 hours
What percentage of the oxygen used in the human body does the brain use? Over 25%
What is the job of red blood cells? To carry oxygen around the body
What is the name of the substance that gives skin and hair its pigment? Melanin
What is the name of the largest part of the human brain? The cerebrum
The outer layer of skin on the human body is called the __ The epidermis
What is another name for your voice box? Larynx
What is the human body’s largest organ? The skin
What substance are nails made of? Keratin
The shape of DNA is known as a __ Double helix
How many bones are there in an adult human body? 206
The bones that make up your spine are called __ Vertebrae
Pulmonology is the study of __ Lung diseases
What is the technical term for sense of smell? Olfaction
What is the technical term for the inability to smell? Anosmia
What is the name of the deepest layer of skin? Hypodermis or subcutis
The inner ear contains a spiral shaped hearing organ called the __ Cochlea
The hardest bone in the human body is called the __ bone Temporal bone (surrounds the inner ear)
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