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EAS 230 > Braciopoda body stufff > Flashcards

Braciopoda body stufff Flashcards

1
Q

Sessile

A

Are atached to the subsrate

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2
Q

sedentary

A

Not physically attached to substare but cant really move ether

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3
Q

Commissure

A

Contact line of valves

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4
Q

Pedicle (ventral) valve

A

“top” valve where the pedicle is attached

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5
Q

Pedicle foramen

A

A circular opaning

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6
Q

Teeth

A

Found on Pedicle valve

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7
Q

Diductor Muscles

A

Open valves and are attached to the cardinal process

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8
Q

Cardinal Process

A

Where the diductor muscles atach to. this is found right at the back of the valves

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9
Q

Adductor muscles

A

Close the valves

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10
Q

umbo

A

the sholder of the valves (curved part at the back)

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11
Q

Brachial (dorsal) valve

A

“Bottom” valve.

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12
Q

Lophophore

A

Feeding apparatus

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13
Q

what is associated with the Pedicle Valve?

A

Pedicle Foramen
teeth
sulcus

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14
Q

what is associated with the brachial valve?

A

Brachiophore
sockets
cardinal process
fold
one pair of muscle scars from the adductor muscles
(the diductor muscles atach to the cardinal process)

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15
Q

sockets

A

Found on the brachial valve

its where the teeth

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16
Q

Interarea

A

Flat surface between the pedicle valve beack/ umbo and the hinge line.
contains the pedicle opening (trangle hole)

17
Q

Brachiopod ornament

A

Features on the shell surface

18
Q

Concentric

A

type of Brachiopod ornament: subparallel to commissure

19
Q

Radial

A

Type of Brachiopod ornamen: radiating from umbo
Ribs/ costae
and plicae

20
Q

Costae and plicae

A

like ribs but are just projections above shell surface
Plicae are minor folds in the shell
both produce the zig zag pattern

21
Q

the three types of shell ultrastrucutre

A

1) Impunctate: no holes through shell
2) Pseudopunctate: holes that go partially through shell for strengthening, shell repair and or for sensory organs
3) Punctate: holes

22
Q

Brachidium

A

Lophophore support

23
Q

What joins the Brachiopods and the Bryozoans?

A

The lophophore so the conecting term is called Lophophorates

EAS 230 (6 decks)

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