DECUSSATING INTERNEURONS MEDIATE ANTENNULAR WITHDRAWAL IN THE BLUE CRAB, CALLINECTES SAPIDUS

Autor:	J. M. Doyle, C. M. Kilroy, L. E. Reuss, David B. Roye
Rok vydání:	2000
Předmět:	Callinectes Interneuron Neurite musculoskeletal neural and ocular physiology Depolarization Anatomy Aquatic Science Biology biology.organism_classification medicine.anatomical_structure nervous system Excitatory postsynaptic potential medicine Neuropil Short latency Process (anatomy)
Zdroj:	Journal of Crustacean Biology. 20:603-613
ISSN:	1937-240X 0278-0372
DOI:	10.1651/0278-0372(2000)020[0603:dimawi]2.0.co;2
Popis:	Four large (Type I) interneurons with cell bodies in the anterior cluster of the brain and decussating axonal processes in an oesophageal connective initiate antennular withdrawal behavior in Callinectes sapidus. Recurrent neurites from the oesophageal process of each interneuron project into antennal and lateral antennular neuropils. These recurrent processes have varicosities on their terminal processes that are hypothesized to possess output synapses onto antennular withdrawal motoneurons. Secondary neurites of Type I interneurons in the medial antennular neuropil receive tertiary branches from antennal and lateral antennular neuropils. These secondary neurites in the medial antennular neuropil also receive short latency, excitatory input from mechanosensory afferent fibers from the antennule base. Intracellular depolarization of Type I interneurons produces antennular withdrawal ipsilateral to the descending axonal process. Intracellular recordings from identified withdrawal motoneurons durin...
Databáze:	OpenAIRE
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