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Explore various aspects of human anatomy and physiology as you answer 15 thought-provoking questions. From organs and systems to bones and hormones, this quiz covers a wide range of topics related to the human body.
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Question: Because its cells are dense with energy-generating mitochondria, which of your muscles never tires? Answer: The heart is a muscle made of cardiomyocytes, cells that have 10 times the density of mitochondria (commonly known as “the powerhouse of the cell”). This allows the heart to keep pumping without getting fatigued.
Question: Which of these bodily responses is a holdover from animal ancestors dealing with cold? Answer: Goosebumps happen when tiny muscles in the skin’s hair follicles pull hair upright. For animals with thick fur, this offers greater insulation. Unfortunately, human body hair is too short to trap heat this way.
Question: The paper-thin tympanic membrane can be found in what body part? Answer: Derived from the Latin for “drum” (also where timpani comes from), the tympanic membrane is the eardrum. When sound waves hit this membrane, it vibrates, sending signals to the inner ear and eventually to the brain.
Question: True or false: Veins look blue because the unoxygenated blood in them is blue. Answer: Red portions of the visible light spectrum easily penetrate skin and become absorbed by hemoglobin in the blood. Blue light scatters when it hits skin and gets reflected back to your eye, causing veins to appear blue.
Question: Which of these body parts has the most bones? Answer: The hand has 14 phalanges, or finger bones, 5 metacarpal bones that make up the middle hand, and 8 carpal bones in the wrist for a total of 27 bones, the most of any body part.
Question: True or false: Stress can cause hair to turn gray. Answer: Norepinephrine, also known as noradrenaline, is a neurotransmitter that conveys the body's fight-or-flight response; it’s been shown to cause graying when injected into otherwise unstressed lab mice.
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More than 200 free multiple-choice quizzes to help you learn the anatomy, physiology and pathology of the human body. With anatomy quizzes from beginner to advanced, it's great for students of biology, nursing, medicine, and massage therapy; but it should be fun for anyone, and will even help you do well at the pub quiz!
INTRODUCTION TO THE HUMAN BODY quiz for University students. Find other quizzes for Science and more on Quizizz for free!
Take this Health and Medicine at Encyclopedia Britannica to test your knowledge of the different parts and functions of the human body.
You might wake up with it, eat with it and sleep with it, but how well do you really know your body? Take the human body quiz to see how well you really know yourself - inside and out.
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You might wake up with it, eat with it and sleep with it, but how well do you really know your body? Take the human body quiz to see how well you really know yourself - inside and out.
