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.
Fun Facts About Poisonous Fish for Kids. Puffer fish, or blowfish, are covered with spines. When they feel scared, they blow up to more than twice their size. The spines stick out, making the fish look like porcupines. The spines arenât the only part thatâs toxic. Some puffer fish release poisons into their bodies when they die.