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.
  In short, the cerebral cortex is the outer and largest part of the brain, that covers its smaller parts and is usually easily visible on brain illustrations. It contai â¦ ns gray matter (neurons) responsible for the higher functions of thinking and information processing. It is a disease that is known to affect young children. 2  A lot ofâ¦. 3  Grey Matter: How the Cerebral Cortex Helps you Function Also known as grey matter, the cerebral cortex is a layer of the brain that covers the outer portion of the cerebellum and the cerebrum.