The Human Body Quiz Share: TwitterFacebookPinterestLinkedinRedditVKDiggMix The Human Body Quiz What is the normal pH range of human blood? 6.8-7.27.35-7.457.5-7.88.0-8.4 What is the main function of the synovial fluid? Nourish bonesLubricate jointsProduce blood cellsRegulate temperature Which part of the nephron is responsible for blood filtration? Loop of HenleGlomerulusCollecting ductDistal tubule Which gland produces melatonin? PituitaryThyroidPinealAdrenal What is the scientific name for the upper arm bone? RadiusUlnaHumerusFibula Which vitamin is produced when skin is exposed to sunlight? Vitamin AVitamin BVitamin CVitamin D What is the average lifespan of a red blood cell? 60 days90 days120 days150 days Which part of the nephron is responsible for water reabsorption? GlomerulusProximal tubuleLoop of HenleCollecting duct What is the main function of the glomerulus in the kidney? Reabsorb waterFilter bloodProduce urineRegulate pH Which organ produces bile? StomachLiverPancreasGallbladder What is the function of the Bowman's capsule? Filter bloodReabsorb waterProduce urineRegulate pH What is the function of the Wernicke's area in the brain? Speech productionLanguage comprehensionMotor controlSensory processing Which part of the ear equalizes pressure? EardrumOssiclesCochleaEustachian tube What is the smallest bone in the human body? StapesIncusMalleusFemur Which part of the eye contains photoreceptors? CorneaLensIrisRetina Which gland produces adrenaline? ThyroidPituitaryAdrenalPancreas What is the main function of white blood cells? Carry oxygenFight infectionsClot bloodProduce hormones Which organ produces bile? PancreasLiverGallbladderStomach Which part of the brain is responsible for processing smell? Temporal lobeParietal lobeOccipital lobeOlfactory bulb Which part of the brain controls voluntary muscle movements? CerebellumMotor cortexMedulla oblongataHypothalamus Next Set of Questions Score: 0/20 Related Reads: World Geography Quiz People also read: World Geography Quiz US Presidents Trivia Quiz Disney Trivia Quiz