External Features Defense Mechanisms Digestive & Circulatory Systems Reproductive System Grab Bag

100

What is the Mantle?
This is also known as the body of the squid and contains most of the internal organs.

100

What is inking?
The squid releases a substance through the siphon to confuse predators.

100

What is the esophagus?
This organ goes through the brain to the stomach.

100

What are gonads?
The reproductive organs of any squid.

100

What is "Cephala"?
This prefix means "head".

200

What are chromatophores?
The pigmented sacs located all over the body of the squid that aid in camouflage and communication.

200

What is jet propulsion?
The squid shoots a powerful stream of water to help it get away from a predator.

200

What is the cecum?
Large organ that contains digestive juices that break down food particles.

200

What are nidamental glands?
These glands are found only in females. They release a gel over the eggs to help protect them.

200

What is posterior view?
From this view you can see the siphon.

300

What are clubs?
Located on the end of the feeding tentacles. They contain large suction cups.

300

What is the siphon?
Inking and Jet Propulsion are possible because of this structutre.

300

What are the branchial hearts?
These organs are located on the gills.

300

What are testes?
The male gonad.

300

What is the ventral end?
This end of the squid contains the head and tentacles.

400

What are fins?
Structures located on the dorsal end of the squid that aid in swimming.

400

What is the pen?
This structure made of thin cartilage found inside the mantle helps keep the mantle rigid during jetting.

400

What is oxygen poor blood?
This type of blood is brought to the gills by the branchial hearts.

400

What are ovaries?
The female organs that produce eggs.

400

What is Cephalopoda?
Squid belong to this class.

500

What are arms?
These structures help hold the food once it has been caught.

500

What are suction cups?
Although primarily used to help squid grasp food, these structures can also help fight off predators.

500

What is the systemic heart?
This carries oxygen rich blood to the body.

500

What is the egg sac?
This structure holds eggs in the female.

500

What is Mollusca?
Squid belong to this phylum.

Squidiology

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