Sea Cucumber (with labels)

Echinodermata -- Physiology

Holothurians

Dissection

Five photographs of various stages of the dissection of a sea cucumber, each with specific features labeled. For those showing the internal structures of the sea cucumber, T-pins are used to hold the sea cucumber open.

Image 1: Ventral External Features

• crown of tentacles
• podia of ventral ambulacra (tube feet)

Image 2: Anterior (close up)

• crown of tentacles
• tube feet ventral podia (tube feet)

Image 3: Internal Features 

• tentacles
• wall of pharynx
• esophagus
• respiratory tree
• stomach
• intestine
• retractor muscles
• gonad
• longitude muscle band
• radiating cloacal muscles
• cloaca (cut)

Image 4: Internal Features (Anterior Close Up)

• wall of pharynx
• retractor muscles
• intestine
• tentacles
• esophagus
• longitudinal muscle bands

Image 5: Gonads Removed

• tentacle
• wall of pharynx
• retractor muscle
• radiating cloaca muscles
• esophagus
• stomach
• intestine
• cloaca
• anus

State University of New York at Buffalo. Department of Biological Sciences

State University of New York at Buffalo. University Libraries

2005-11-07

IN COPYRIGHT - EDUCATIONAL USE PERMITTED. This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. In addition, no permission is required from the rights-holder(s) for educational uses. For other uses, you need to obtain permission from the rights-holder(s).

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SeaCucumber02D

SeaCucumber07D

SeaCucumber25D

SeaCucumber33D

SeaCucumber34D

Evolutionary Biology Digital Dissection Collections. BIO-001