nervous system Flashcards
1
Q
porifera
A
no cephalization and no sensory cells
2
Q
cnidaria
A
primitive nervous system
no cephalization
3
Q
platyhelminthes
A
ladder. two lateral cords, transverse cords connecting
4
Q
annelida
A
cephalization
5
Q
mollusca
A
limited cephalization
6
Q
cephalopods
A
giant nerve cells, image forming eyes
7
Q
echinodermata
A
no cephalization. nerves.
8
Q
sensory organs in echinoderms?
A
starfish and brittle stars have eyespots on arms
9
Q
hexopoda
A
cephalization
10
Q
crustacea
A
cephalization
11
Q
chordata
A
cephalization
12
Q
annelida. nerve cord?
A
ventral nerve cord
13
Q
annelida. structure analogous to brain?
A
suprapharyngeal ganglia
14
Q
hexapoda. nerve cord?
A
double ventral nerve cord
15
Q
crustacea. nerve cord?
A
double ventral nerve cord
