What Is One Important Job Of Saliva That Many People Don't Realize? It produces vitamin D It begins the digestion of certain foods It creates red blood cells It regulates…

Which Everyday Action Involves Coordinated Activity From Dozens Of Muscles And Nerves? Digesting food Growing hair Producing red blood cells Smiling Did You Know! Some people can inherit enamel that…

Which Part Of Your Body Renews Its Outermost Cells Continuously Throughout Your Life? Skin Heart Tooth enamel Eye lens Did You Know! A tooth can actually start breaking down from…

What Causes The "Pins And Needles" Feeling After Sitting In An Awkward Position? Your skin running out of oxygen Your muscles producing too much calcium Your bones vibrating Temporary pressure…

What Is One Major Purpose Of Blinking? Strengthening your eyesight Lubricating and protecting the eyes Exercising facial muscles Lowing blood pressure Did You Know! A muscle disorder can be triggered…

Which Part Of The Body Is Responsible For Your Sense Of Balance? Inner ear Tongue Thyroid Sinuses Did You Know! Some muscle disorders can make a person’s muscles unusually large…

Which Substance In Your Body Is Strong Enough To Help Protect Teeth Chewing? Keratin Cartilage Tooth enamel Gums Did You Know! You can develop a form of appendicitis even after…

What Happens To Your Spine While You Sleep? It becomes permanently longer It becomes completely rigid Nothing changes It slightly lengthens Did You Know! A rare tumor of the appendix…

Which Part Of Your Body Is Home To Trillions Of Microorganisms That Can Influence Digestion And Other Aspects Of Health? Stomach only Large intestine Gallbladder Appendix only Did You Know!…