The extensor pollicis longus muscle begins at the ulna and the interosseous membrane, a tough fibrous tissue that connects the ulna and the radius in the lower arm.It is a skeletal muscle and is controlled by the motor nervous system.ts fibers are striated, which means they are arranged in parallel. The extensor pollicis longus muscle ends at the distal phalanx (the tip) of the thumb. The muscle serves to extend the thumb. When moving the thumb, the muscle uses the radial tubercle as a pulley.
The biomes Velociraptors lived in was mostly hot and dry desert types of land with enough water supply to live. you have to remember this was 80-85 million years ago so there wasn't the oceans. Other dinosaurs in the area were the following that I have listed. I hope I helped!!!
Protoceratops and Velociraptor in combat. In 1971, a fossil was found that captured a Velociraptor clutched around a Protoceratops in Mongolia. It is believed that they died simultaneously, while fighting, when they were either surprised by a sand storm or buried when a sand dune collapsed on top of them.t is notably larger than P. andrewsi. In the 1920s, Roy Chapman Andrews discovered the first known fossilized dinosaur eggs, in the Gobi Desert of Mongolia. Due to the proximity of Protoceratops, these eggs were believed at the time to belong to this species.