Ctenophore - Description - Common Features - Feeding, Excretion and Respiration

Feeding, Excretion and Respiration

When prey is swallowed, it is liquefied in the pharynx by enzymes and by muscular contractions of the pharynx. The resulting slurry is wafted through the canal system by the beating of the cilia, and digested by the nutritive cells. The ciliary rosettes in the canals may help to transport nutrients to muscles in the mesoglea. The anal pores may eject unwanted small particles, but most unwanted matter is regurgitated via the mouth.

Little is known about how ctenophores get rid of waste products produced by the cells. The ciliary rosettes in the gastrodermis may help to remove wastes from the mesoglea, and may also help to adjust the animal's buoyancy by pumping water into or out of the mesoglea.

Read more about this topic:  Ctenophore, Description, Common Features

Other articles related to "excretion, respiration":

Hyperuricemia - Causes
... functional types increased production of uric acid, decreased excretion of uric acid, and mixed type ... Causes of decreased excretion include kidney disease, certain drugs, and competition for excretion between uric acid and other molecules ...
Excretion - Non-mammalian
... and there are no special organs of excretion ... Carbon dioxide released during respiration gets utilized during photosynthesis ...
Photinus Pyralis - Defense
... the family Lampyridae have been known to use certain defenses such as unpleasant odor and the excretion of a sticky substance to avoid predation ... Excretion of unpleasant fluids from the areas along the elytra and pronotum is the result of tactile stimulation and has been referred to as reflexive bleeding ... The excretion contains lucibufagins, steroids found in P ...
Aratac - Metabolism - Excretion
... Excretion is primarily hepatic and biliary with almost no elimination via the renal route and it is not dialyzable ...