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.
The venom from a single bite of an Inland Taipan can kill as many as 100 people. That may seem like nothing compared to the Belcherâs Sea Snake, but itâs still pretty impressive! While the rattlesnake is the most dangerous snake in the Americas, this snake is ten times more venomous.he rattlesnake is actually a type of viper, and is quite venomous. The most dangerous snakes in this species are the young Eastern Diamondbacks. When treated promptly, fewer than 4% of rattlesnake bites are fatal, but when left untreated, all bites are potentially lethal.