## Abstract In rats, motoneurons of the spinal nucleus of the bulbocavernosus (SNB) innervate the bulbocavernosus (BC) muscle, which surrounds the base of the penis. The SNB/BC is a sexually dimorphic, steroidβsensitive neuromuscular system, which is critically important in male reproductive behavi
Testosterone metabolites differentially maintain adult morphology in a sexually dimorphic neuromuscular system
β Scribed by Tom Verhovshek; Katherine E. Buckley; Melissa A. Sergent; Dale R. Sengelaub
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 2009
- Tongue
- English
- Weight
- 454 KB
- Volume
- 70
- Category
- Article
- ISSN
- 1932-8451
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The rat lumbar spinal cord contains the testosterone-dependent spinal nucleus of the bulbocavernosus (SNB), whose motoneurons innervate perineal muscles involved in copulatory reflexes. In normal males, SNB dendrites grow exuberantly through the first 4 weeks postnatally. This growth is steroid-depe
Motoneurons in the spinal nucleus of the bulbocavernosus (SNB) innervate the perineal muscles, bulbocavernosus (BC), and levator ani (LA). Testosterone regulates the survival of SNB motoneurons and BC/LA muscles during perinatal life. Previous findings suggest that effects of testosterone on this sy
## Abstract The lumbar spinal cord of rats contains the sexually dimorphic, steroidβsensitive spinal nucleus of the bulbocavernosus (SNB). In male rats, SNB motoneurons exhibit a biphasic pattern of dendritic growth, having an initial period of exuberant growth followed by a period of retraction to