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Introducing the Human Body
Bruin and Senses
acids actin adult alveoli Arteries atrium axon b0dy bacteria blood CellS Carry blood vessels body's Brain and Senses breathe bronchioles bronchus called alveoli Capillaries carbohydrates carbon dioxide cells called cellular respiration Cerebrum chemical called compact bone contract digestive system digestive tract doctor electrical signals endoplasmic energy enzyme esophagus fats fibrous tissue filaments Slide genes germs glands Golgi body gut flora heart help the body hemoglobin human body hypothalamus inside cells inside the body joints kidney layer liver look inside lungs marrow membrane million mitochondria Muscle fibers muscular myofibrils myOSin nerve cells nervous system neurons Organelles organs oxygen Oxygen-poor blood oxygen-rich blood pancreas pass PeriStalSiS powerful microscope produce proteins rays receptors red blood cells reticulum retina Ribosomes send messages sex hormones singular form Skeletal muscles skeleton skin small intestine Spongy bone stay healthy stomach sugar surgery thyroxine tissue called trachea tube tumor Ventricle virus wall X rays