Behavioral Neuroscience Summers

Leech Shortening Sensory Stimulation of Shortening S&R Sensitization Learning Motor Efferents Neuromuscular Function Integration

Glu 5-HT ACh Leech figures Shortening Neurocircuitry end     Acronyms/Abbreviations

Pictures of the Leech, subclass Hirudinea    back to Behavior Lecture

Hirudinea Species:
1) Rhynchobdellida
Batrachobdella picta (probably)

Placobdella ornata

Alboglossiphonia sp

Arhynchobdellida
2) Gnathobdellida
Percymoorensis marmorata

Hirudo medicinalis
H medicinalis above H verbana below
Hirudo verbana



3) Pharyngobdellida
Nephelopsis obscura

4) Acanthobdellida

5) Branchiobdellida not really leaches (oligochaeta)


6) Habitats
mountainous streams

Tasmania

7) Segments and organs

8) Anatomy

9) Copulation

Hirudinea Nervous System:
1) Compared to Humans

2) ganglion

3) Chain of ganblia


Pictures of Shortening Behavior in Hirudinea:
1) Movement

2) Swimming