Mollusca Flashcards
secrets calcareous spicules or one or more shells
Mantle
cuticular band of teeth in the esophagus
Radula
Ventral body wall muscles develop into a
locomotory or clinging foot.
largest and most diverse phyla in the animal kingdom
Phylum Mollusca
Mollusca latin meaning?
Mollia - soft bodies
Molluscan Shell: outer organic layer
Periostracum
Molluscan Shell: middle calcareous layer
Prismatic layer
Molluscan Shell: innermost calcareous layer
Nacreous layer
Molluscan Shell are made up of?
Organic and inorganic compounds
grain of sand, parasite, or the other foreign particle becomes trapped between the mantle and the shell’s inner surface becomes?
Pearl
Usually houses the combmolluscan gill
Mantle cavity
It is called comb molluscan gill, known as ?
ctenidium
Function of mantle cavity?
Exit site for excretoy, digestive, and reproductive systems
Respiratory function or collection and sorting of food particles
Ctenidium
chemoreceptor/ tactile receptor located adjacent to the ctenidium
Osphradium
Feeding Apparatus:
Clue:
R
O
M
E
Radula
Odontophore
Mouth
Esophagus
Odontophore- radular assembly + complex musculature
Buccal mass
molluscs possess a feeding structure?
Radula
Ribbon composed of?
Chitin and protein
produced from a radular sac
Ribbon
supportive cartilage-like structure
Odontophore
What is feeding type of mollusca?
Rasping
odonophore-radular assembly, together with its complex musculature
Buccal mass
secretes acid and enzymes that allow these carnivores to bore through the shells of other molluscs.
accessory boring organ (ABO)
Feeding in snails: conus striatus?
Lightning strike cabal - immobilization of prey
Feeding in snails: conus geographus
nirvana cabal of toxins - stinging of neuromuscular paralysiz
