The Human Organism |
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abdominal adrenal amino acids amount animals aorta arises artery atom becomes blood pressure blood vessels body bone brain branches called canal capillary carbohydrates carbon carotid cartilage cavity centrioles chemical chromosomes color cone cells connective tissue contains contraction corpus luteum cortex cranial digestive dorsal duct ectoderm electrons embryo energy enzyme epithelial epithelium excreted external female Figure fluid function ganglion glands glucose heart hormone hydrogen intestine ions kidneys layer lens liver lobe located lungs lymph lymphatic male medulla membrane metabolism molecule motor mucous muscle muscular nerve fibers nerve impulse neurons normal nucleus organ ovum oxygen pancreas parasympathetic passes pigment plasma portion posterior pressoreceptors produced proteins pyruvic acid receptors red cells respiratory retina secretion sensory skin sodium spinal cord stimulated stomach structure substance surface sympathetic tendon thoracic thyroid tion tract tube tubules urine uterus vagus nerve veins ventricle vertebrae vitamin wall