What Is The Only Joint In The Body That Can Rotate 360 Degrees? Hip Elbow Knee Shoulder Did You Know! Veins Can Hold Over 60% of Your Blood Volume Your…

What Percentage Of The Body’s Bones Are In The Hands And Feet? 25% Over 50% 10% 33% Did You Know! The “Blue” Color of Veins Is an Optical Illusion Veins…

What Causes Hiccups? Heart palpitations Tongue twitching Diaphragm spasms Esophagus contractions Did You Know! Veins Have Tiny Valves That Act Like Trapdoors Your veins contain one-way valves that prevent blood…

How Long Does It Take Blood To Circulate Through The Entire Body? 5 minutes 10 seconds 3 minutes 1 minute Did You Know! The human body glows in the dark—just…

What Structure Keeps Your Lungs From Collapsing? Blood pressure Pleural membrane Diaphragm Lung fluid Did You Know! Your eyeballs have immune privilege. The immune system treats your eyes as “off-limits.”…

What Organ Has Over 500 Known Functions? Brain Liver Kidney Heart Did You Know! Your brain has no pain receptors. Despite controlling your entire nervous system, the brain itself can’t…

Which Part Of The Body Has The Most Fat Cells? Belly Thighs Arms Buttocks Did You Know! You can survive without a large portion of your internal organs. You could…

What’s The Normal Resting Heart Rate For Adults? 40–50 bpm 90–100 bpm 60–100 bpm 110–120 bpm Did You Know! Your bones are constantly dissolving and rebuilding themselves. You get an…

Which Vegetable Can Cause A Sunburn-Like Rash If Handled In Sunlight? Celery Carrot Lettuce Cucumber Did You Know! Your Eye Muscles Are the Body’s Busiest The extraocular muscles, which control…