gastro-intestinal tract necklace | silver pp_lab Cassiopeia is the W in

Cassiopeia is the W in the autumn-and-winter northern sky

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Hemoglobin is a tetrameric protein: two alpha and two beta globin subunits

The 42 mm pendant carries the structure at full clinical scale

gastro-intestinal tract necklace | silver pp_lab Cassiopeia is the W inGastro intestinal tract necklace sterling silver Nine metres of specialised tube, each segment adapted to a different stage of digestion. From mouth to anus, the entire journey of food, absorption, and waste. Few organs reveal the body's engineering as clearly as the full digestive system. The Anatomy of the GI Tract The oesophagus is a muscular chute. The stomach churns and acidifies. The small intestine (duodenum, jejunum, ileum) accounts for