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ZOOL 250 lab 4-7 > lab 6 > Flashcards

lab 6 Flashcards

1
Q

shell

A

protective structure grown organically or some shit

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2
Q

oldest part of shell

A

apex

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3
Q

gastropoda example

A

snails
cornu

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4
Q

mantle

A

enclosure for structures

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5
Q

outerlayer of shell

A

periostracum

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6
Q

how many tentacles

A

2

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7
Q

where are eyes

A

tips of tentacles

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8
Q

pneumostome

A

small hole near mantle
allows inside of shell to interact w outside

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9
Q

foot

A

big muscle

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10
Q

mantle cavity

A

cavity w mantle that holds shit

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11
Q

radula

A

cheese grator–> rows of teeth for feeding

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12
Q

dart sac

A

secretes hormones for sperm survival

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13
Q

sex of cronu

A

hermaphrodites

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14
Q

siphon

A

water flow

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15
Q

ctenidium
how many?

A

respiratory structure
1

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16
Q

anus location

A

anterior end

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17
Q

mercenaria
what is present?

A

bivalve
periostracum

18
Q

umbo

A

oldest pt of mercenaria shell

19
Q

hinge ligament

A

holds stuff together

20
Q

how does shell grow(bivalve)? what indicates this

A

concentric ridges reveal it grows outwards

21
Q

anterior and posteriod adductor muscle scars

A

where muscles attach to shell

22
Q

hinge teeth

A

keep shell slightly open

23
Q

pallial line

A

line for mantle attachment

24
Q

what siphon attaches to shell

A

pallial sinus

25
Q

what hold shell tgthr

A

anterior and posterior adductor muscles

26
Q

what muscles move foot

A

anterior and posterior pedal retractor muscles

27
Q

what takes in or moves out particles?

A

inhalent and exhalent siphons

27
Q

labial palp

A

helps sort inhaled material

28
Q

how many ctenidia in bivalve

A

2 sheet

29
Q

how many demibranch per ctenidia bivalve

A

2

30
Q

coelom in bivalve

A

pericardial coelom
reduced, open circ system

31
Q

mytilus

A

all the cilia shit
bivalve, marine mussel
filibranch bivalve

32
Q

frontal cilia

A

move food to food groove

33
Q

laterofronal cilia

A

move particles to frontal cilia

34
Q

lateral cilia

A

create water flow

35
Q

polyplacophora

A

hella shell plates hella ctenidia

36
Q

opithobranch

A

“after heart”
no shell
sea slug
bilarteral symmetry

37
Q

pulmonates

A

class gastropoda0 dont have shells for gas exchange and mobility –> land fuckers

38
Q

paleotaxodonta

A

bivalve
have hinged teeth

39
Q

pteriomorphia

A

bivalve
mussel

40
Q

heterodonta

A

have eulamellibranch gills
bivalve

ZOOL 250 lab 4-7 (4 decks)

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