Main controlling organ of the nervous system.
Muscular bulb that contains the beaks, radula, various glands and the pharynx.
A hard mouthpart used for feeding.
An octopus has eight arms used for holding prey and movement.
A funnel, sometimes called a siphon, is a tubular opening that serves as a pathway for water.
Tightly packed muscles on the underside of an arm with a cavity in the centre, Their grip results from reducing the pressure inside the sucker cavity,
Organ which extracts oxygen from water as it flows over it,
Sac containing an ink-producing gland; when threatened, the octopus releases the ink through the funnel into the water to hide its escape.
A muscular enlarged portion of a vein of a cephalopod that contracts and forces the blood into the gills.
An excretory organ that filters wastes from the blood and excretes them and water.
Muscular organ to circulate blood around the body.
Genital gland producingsperm or ova (eggs), depending on the sex of the animal.