The second group of mycorrhizae is endomycorrhizae which are also known as vesicular-arbuscular mycorrhizae or VAM. Roughly, 80% of all the plants in the world form associations with endomycorrhizae, as does nearly every greenhouse plant.
Pyramidal neurons (pyramidal cells) are a type of neuron found in areas of the brain including the cerebral cortex, the hippocampus, and the amygdala.Pyramidal neurons are the primary excitation units of the mammalian prefrontal cortex and the corticospinal tract.yramidal neurons in the prefrontal cortex are implicated in cognitive ability. In mammals, the complexity of pyramidal cells increases from posterior to anterior brain regions. The degree of complexity of pyramidal neurons is likely linked to the cognitive capabilities of different anthropoid species.
1 1. 2  The cerebral cortex is the part of the brain that ï¨ is visible from the outside. 3  The cerebral cortex is the outermost layer of the brain and consists of a collection of nerve cell bodies made up of gray matter. 4  The axons of these neurons extend in toward the center of the brain and into the white matter.5  2. The cerebral cortex is the outermost layer of the brain and consists of a collection of nerve cell bodies made up of gray matter. 2  The axons of these neurons extend in toward the center of the brain and into the white matter. 3  2. 4  The brain is divided into two hemispheres, ï¨ each of which has slightly different functions.