Butterflies also act as a lower member of the food chain. They are a hearty meal for a number of animals, including birds and mice. As populations of butterfly diminish, so will populations of birds and other animals that rely on them as a food source.
The conus medullaris (Latin for medullary cone) is the tapered, lower end of the spinal cord.It occurs near lumbar vertebral levels 1 (L1) and 2 (L2), occasionally lower. The upper end of the conus medullaris is usually not well defined.After the spinal cord tapers out, the spinal nerves continue to branch out diagonally, forming the cauda equina.onus medullaris syndrome is a collection of signs and symptoms associated with injury to the conus medullaris. It typically causes back pain and bowel and bladder dysfunction but weakness and sensory loss is uncommon.
The spinal cord transmits information between the spinal cord and brain to the nerves and muscles. The distal or terminal portion of the spinal cord is also referred to as the conus medullaris.In adults, the spinal cord terminates at approximately the level of L1.he nerve roots form the cauda equina, the collection of nerve roots distal to the conus that supply the lower part of the body. The conus typically terminates at the L1-2 level. Extending distally from the conus medullaris is a delicate filament, the filum terminale.