Molluscs Flashcards
1
Q
Muscular, sense organ and brain
A
Head-foot
2
Q
Contains internal organs
A
Visceral Mass
3
Q
Dorsal body, covers visceral mass, pertrudes in flaps
A
Mantle
4
Q
Feeding organ
A
Radula
5
Q
What is the Radula made of?
A
Chiton
6
Q
Shell twisting
A
Torsion
7
Q
Opening of the shell
A
apeture
8
Q
Right side of shell
A
Dextral
9
Q
Left side of shell
A
Sinistral
10
Q
Outermost layer of the shell or “skin”
A
Periostracum
11
Q
Middle layer of the shell made of calcite or aragonite
A
Prismatic layer
12
Q
Secreted by epithelial cells of the mantle “Mother of pearl”
A
nacreous layer
13
Q
highest part of the shell
A
umbo
14
Q
secreted mucus that entangles suspended food
A
labial palps
15
Q
Main muscle system in the rear
A
Posterior adductor muscle
