Phylum Mollusca - Class Cephalopoda

Questions and Answers

This organ is termed the?

Collar

This triangle-like top is called the?

Fin

This external organ is called?

Mantle

This sensing organ is called the?

Eye Signup and view all the answers

These long organs are called the?

Arms Signup and view all the answers

This protruding organ is called the?

Tentacles Signup and view all the answers

This organ under the collar is called the?

Siphon Signup and view all the answers

What is this organ coined as?

Beak Signup and view all the answers

This important organ under the collar is called the?

Pallial cartilages Signup and view all the answers

Study Notes

External Anatomy of Squid (Loligo)

The collar is an organ located at the base of the siphon, playing a role in directing water flow for movement.
The fin is a triangular structure at the top of the squid, aiding in stabilization and maneuverability in the water.
The mantle is the external covering of the squid, providing protection and playing a role in respiration and locomotion.
The eye is a highly developed sensory organ, crucial for vision and navigation in the aquatic environment.
Arms are long appendages used for grasping prey and manipulation of objects, featuring suckers for better grip.
Tentacles are elongated organs, typically longer than arms, used for capturing prey, equipped with suckers or hooks.
The siphon is located under the collar, serving as an excurrent jet for propulsion and water expulsion.
The beak is a hard, hook-like structure used for grasping and slicing prey; analogous to bird beaks in function.
Pallial cartilages are important structures located beneath the collar, supporting the mantle and playing a role in the locomotion of the squid.

Description

Test your knowledge on the external anatomy of the squid from Class Cephalopoda. This quiz covers various components such as the collar, fins, mantle, and more. Ideal for biology students studying marine organisms.