Organization of the Nervous System in Invertebrates

Vocabulary flashcards covering the structure and components of the invertebrate nervous system, with specific focus on shrimps.

Shrimp brain

A small brain found on the dorsal side of the head, composed of only a few nerve cell clusters or ganglia.

Invertebrate nerve cord

A structure located ventrally that is made up of nerve ganglia, including 1 sub-esophageal ganglion, 3 thoracic ganglia, and 6 abdominal ganglia.

Sub-esophageal ganglion

The single nerve ganglion that forms part of the invertebrate nerve cord.

Thoracic ganglia

The 3 nerve ganglia that form part of the invertebrate nerve cord.

Abdominal ganglia

The 6 nerve ganglia that form part of the invertebrate nerve cord.

Peripheral nervous system (Invertebrates)

The part of the nervous system composed of all sensory and motor nerves connected to the ganglia.

Naked CNS

A description of the central nervous system in invertebrates, so named because it is not protected by bone.

Chain of ganglia (in Shrimps)

The neural structure in shrimps that relates receptor organs to effector organs.