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BIO1021 Zoology > Arthropoda > Flashcards

Arthropoda Flashcards

1
Q

What are the general features of arthropods?

A 
Segmented and each segment has jointed appendages
Exoskeleton
Haemocoel 
Dorsal heart
Ventral nerve trunks
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2
Q

Describe the arthropod exoskeleton

A

Rigid
Provides protection and muscle attachment
Limits growth and restricts diffusion/ excretion
Laminated into epicuticle, exocuticle and endocuticle

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3
Q

Describe arthropod circulation

A

Haemocoel divided into sinuses
Haemolymph bathes tissues and transports nutrients
Cyanoglobin- blue/green blood
Contractile heart where ostia allow haemolymph to enter, pushed fowards

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4
Q

Describe arthropod nervous system

A

Double ventral nerve trunks
Segmental ganglia
Brain made of fixed cerebral ganglia
Brain above the digestive system

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BIO1021 Zoology (4 decks)

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