Quick Answer: Hydra Model is a colourfully illustrated model of the external and internal structure of a hydra, from bud and tentacles to nematocysts and flagellated cell, mounted on a stand.
Last updated: October 2026
Key Features
Colourfully illustrated external and internal structure
Shows bud, tentacles, hypostome, mouth, foot, testis and ovary
Shows gastrovascular cavity, mesoglea, epidermis, gastrodermis, nematocysts and flagellated cell
Each labelled structure, from the hypostome and tentacles to the gastrodermis and nematocysts, is numbered against an English key card. This Zoological Models piece is mounted on a stand and coloured to separate the external and internal structure of the hydra.
Frequently Asked Questions
Q1. What structures are shown on the Hydra Model? Bud, gastrovascular cavity, testis, tentacles, foot, ovary, hypostome, mesoglea, mouth, nematocysts, epidermis, gastrodermis and flagellated cell, numbered with an English key card.