Information om | Engelska ordet MADREPORITE

Exempel på hur man kan använda MADREPORITE i en mening

• The water vascular system of holothuians is similar to other echinoderms, except the madreporite opens in the perivisceral coelom instead of in the external body wall.
• The madreporite is about halfway from the centre of the disc to the margin, the anus is small, and there are respiratory structures known as papulae between and concealed by the paxillae.
• Aquilonastra burtoni is a small species of sea star with up to 8 rays, frequently 7, they frequently demonstrate an asymmetrical form after fissiparous division while the form of larger specimens is often symmetrical with 5 equal rays; there is an inconspicuous madreporite in most interradii.
• the perivisceral coelom which mainly surrounds the digestive system and the gonads; the perihaemal system, which consists of radial channels and forms a reduced circulatory system; and the water vascular system, which involves hundreds of tube feet, water channels, and the madreporite.

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