Mysteries of the Human Body Dive into the fascinating world of human anatomy. Explore the complex structures and functions that keep us alive and thriving. alina90 published on October 10 Stacked 1/12 What part of the eye contains the photoreceptors? Lens Retina Iris Cornea 2/12 Which bone is known as the collarbone? Sternum Humerus Clavicle Scapula 3/12 What is the largest organ in the human body? Skin Heart Liver Lungs 4/12 Which part of the brain regulates balance and coordination? Medulla Oblongata Thalamus Cerebrum Cerebellum 5/12 Which of the following is a primary function of the large intestine? Reabsorb water Produce bile Filter toxins Absorb nutrients 6/12 Where in the body would you find alveoli? Heart Kidneys Liver Lungs 7/12 What is the name of the protein responsible for muscle contraction? Keratin Myosin Elastin Collagen 8/12 What is the function of red blood cells? Fight infection Carry oxygen Protect the heart Clot blood 9/12 Which type of blood vessel carries blood away from the heart? Veins Capillaries Venules Arteries 10/12 Which hormone regulates blood sugar levels? Cortisol Insulin Adrenaline Thyroxine 11/12 What is the basic functional unit of the kidney? Nephron Neuron Alveolus Glomerulus 12/12 Which structure connects the muscles to bones? Tendons Cartilage Fascia Ligaments