Morphology of neurons containing monoamines within leech segmental ganglia
✍ Scribed by Lent, Charles M.
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- English
- Weight
- 431 KB
- Volume
- 216
- Category
- Article
- ISSN
- 0022-104X
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
The monoamine‐containing neurons within leech segmental ganglia are vitally and selectively stained by Neutral Red dye—a procedure facilitating the investigation of their morphology by means of intracellular injections of the tracer enzyme, horseradish peroxidase. The colossal Retzius cells are peripheral effector neurons which project large axons into the lateral roots and smaller axons into the anterior and posterior longitudinal connectives. All classes of the smaller ganglionic neurons which also contain serotonin (VL, DL, M, and E), as well as the catecholamine soma in the anterior root (AR), have extensive arborizations within the neuropile and project their axons only into the longitudinal connectives. Each of the five classes of small amine cell has a highly specific morphology and appears to be an interneuron.