canals. In cnidarians, the gastrovascular system is also known as the coelenteron, and is commonly known as a "blind gut" or "blind sac", since food enters...

aboral end (from Latin ab- 'away from') has no opening from the gut (coelenteron). They are radially symmetric around the oral-aboral axis. Having only...

Longitudinal division begins when a polyp broadens and then divides its coelenteron (body), effectively splitting along its length. The mouth divides and...

3. Retracting muscles 4. Gonads 5. acontial filaments 6. Pedal disk 7. Ostium 8. Coelenteron 9. Sphincter muscle 10. Mesentery 11. Column 12. Pharynx...

which descends for some distance into the body before opening into the coelenteron, otherwise known as the gastrovascular cavity, that occupies the interior...

threadlike tissues, composed largely of stinging cells located in the coelenteron of certain sea anemones. They are thrown out of the mouth or special...

of the animal is also subdivided into minute pores that are linked to coelenteron. Jellyfish species fished on a commercial basis for human consumption...

fish rarely leaving the oral disc. A clownfish may even swim into the coelenteron (gastrovascular cavity), though Allen observes this to be uncommon. Nighttime...

surrounded by a spacious cavity called the gastrovascular cavity, or coelenteron. Digestion is both intracellular and extracellular. Respiration and excretion...

expected to intensify.: 416  The fluid in the internal compartments (the coelenteron) where corals grow their exoskeleton is also extremely important for...

As in all cnidarians, there is a single gastrovascular cavity (the coelenteron) and the mouth acts as both mouth and anus; it is surrounded by a layer...

expected to intensify.: 416  The fluid in the internal compartments (the coelenteron) where corals grow their exoskeleton is also extremely important for...

spawning, the gametes of are released from the gonads into the polyp coelenteron and has been seen aggregating beneath the oral disk of the polyp. Cleavage...

release mature gametes into the water column through the mouth from the coelenteron — the central body cavity of cnidarians. After fertilization has occurred...

and the perisarc. The coenosarc is the internal tube, containing the coelenteron, and the perisarc is the external layer secreted by the ectoderm. The...

pharyngeal wall. Another predominant trait resides in the presence of the coelenteron around the centralized body cavity, which is divided by distinct septa...

differentiate. Once the germ cells have matured they are released through the coelenteron into the sea, as a result reproduction is external. In this process many...

to 47 m (20 to 150 ft). In G. mariae, the gametes are shed into the coelenteron or body cavity of each polyp and pass through the mouth into the open...

longer than the others. The polyps have a mouth which opens into the coelenteron. This interconnects with other polyps through a complex system of channels...

takes place in the coelenteron (gastric cavity) of the female. The eggs have yolks, and the embryos are brooded in the coelenteron until they are liberated...