It works in association with other motor areas including premotor cortex, the supplementary motor area, posterior parietal cortex, and several subcortical brain regions, to plan and execute movements.Primary motor cortex is defined anatomically as the region of cortex that contains large neurons known as Betz cells.t works in association with other motor areas including premotor cortex, the supplementary motor area, posterior parietal cortex, and several subcortical brain regions, to plan and execute movements.
The tiger keelback is a beautiful orange, olive, and black creature found in Japan. It defends itself with two glands on its neck, which contain poisons called bufadienolides. These irritate the airways and harm the hearts of any would-be predator. But the snake doesnât make these poisons itself.
Paralytic shellfish poison (PSP) is naturally occurring toxin, called a biotoxin, that is produced by some species of microscopic algae.PSP can concentrate in shellfish and, when eaten, can cause illness in humans.This biotoxin affects the nervous system and paralyzes muscles, thus the term paralytic shellfish poison. High levels of PSP can cause severe illness and death.SP can concentrate in shellfish and, when eaten, can cause illness in humans. This biotoxin affects the nervous system and paralyzes muscles, thus the term paralytic shellfish poison. High levels of PSP can cause severe illness and death.