![]() ![]() The end of the digestive system is the anus, from which waste exits. Waste passes into the large intestine, a thick tube adjacent to the stomach pouch, then to the small intestine, and then empties into the rectum. Enzymes from the liver and pancreas help digestion. The caecum also performs some digestion and is the primary site of absorption of nutrients. The squid’s stomach is a small sac that connects to the stomach pouch or caecum. The systemic heart is made of three chambers: a lower ventricle and two upper auricles.īeneath those is the digestive system. Blood then flows to the systemic heart, where it is pumped to the rest of the body. The branchial hearts pump blood to the lungs, where oxygen is taken up. They’re nearly twice as good at processing oxygen as a crustacean’s lungs.īetween them, they have three hearts. Inklings also posses a twin pair of lungs, which are lined with internal filaments resembling gills, and are extremely powerful. These joints also prevent the entire inkling from depressurizing if one is punctured in an injury. These tubes are segmented, because they are pressurized so heavily that they cannot bend well, and if these joints didn’t exist, limbs would not be able to bend. However, the pressurized tubes instead provide muscle attachments and structural support similar to bones. The term “ink bone” or “boink” should not be misconstrued, as they’re not actually made of bone, or solid at all. There’s also four other tubes that lead to a bunch of long, pressurized structures called atramentosses, or ink bones. Ink is expelled through a tube that leads to the back of the neck, where there is a ruffle of skin called the ink gills. These cells fill up, and once full, empty into the ink sac. The entire sac is lined with small ink glands, which produce ink and various pigments. ![]() This is a large organ, over 7 times the volume of the stomach. This is what allows squids to consistently land on their feet while superjumping.Īrguably the second most important is the ink sac. As the little bone moves around within the chamber according to gravity, the squid can work out which way is up, always allowing them to instinctively know which direction they’re facing, even when falling. Each statolith is a small calcareous structure which sits within a chamber called a statocyst. Up to 65 per cent of the brain is devoted to processing visual information. This is because vision is very important to Inklings. The inkling brain is enclosed in a cartilaginous head capsule and includes two large optic lobes. The internal anatomy, though with stranger positioning due to the unique shape, is quite similar to most mollusks.Īrguably, the most important organ is the brain. Within this toe is a particularly large, sharp hook, which is used mainly for fighting instead of gripping.Īn inkling’s preferred method of fighting is to grip their opponent with their front hooks, and then slice with their spur hook and bite with their beak. Near the heel of the foot is a larger toe, which is called the spur toe. These hooks are normally sheathed within the hook slits, where they can be extended at the pressurization of a small sac that sits just behind it in the fingertip. They’ve lost almost all of their muscle mass and nerves, and cannot be moved.Īt the tips of their fingers and does they posses chitinous hooks, often called claws, which are sharp, hooked structures mainly intended for gripping. The others are located on the head, and are used both for display (they’re covered in a large density of chromatophores, iridiphores, and photophores) and fat storage. They possess a total of 10 limbs, though only four of them are actually functional. I placed it below the cut because of this.Īn inkling’s bipedal anatomy is extremely different from most sapient invertebrates even amongst fellow mollusks. ![]()
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