Porifera (sponges)

Porifera

sponges

Ostia

pores in the sponge that allow water flow in/out

Choanocytes

contain collar cells and drive the water current

Totipotent cells

can give rise to become any other type of cell

Pinacocyte cell

outer covering of the sponge

Oocyte cell

egg cell

Porocyte cell

controls water flow through ostia

Archeocyte cell

delivers nutrients to other cells

Sclerocyte cells

secretes silica

Choanocyte cells

generates a water current and filters food particles

Asconoid canal

Syconoid canal

Leuconoid canal