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.
39 responses to âTop 5 Most Poisonous and Venomous Fish!â. 1  Great article! There are a few freshwater catfish species (the Madtoms) that have low levels of anti-predatory venom delivered via pectoral spines. 2  In the Southern California waters I've had run-ins with Sculpin. Those guys have dorsal spines with venom.