Centrioles are found in animal cells, but not plant cells. They help to organize the assembly of microtubules during cell division. Centrioles are found within cell structures known as centrosomes. During cell division, the centrosome and centrioles replicate and migrate to opposite ends of the cell.
The peroneus brevis tendon and peroneus longus tendon merge in a sheath behind the ankle. When the corresponding muscles are flexed, the tendons slide inside the sheath. Symptoms of injury to the peroneus brevis tendon include swelling as well as pain at the base of the little toe or in the outer ankle area.
Peroneal Tendonitis. Peroneal Tendonitis is a common cause of pain around the back and outer side of the foot due to inflammation, irritation or degeneration of the tendons. Tendons are strong, cord-like structures that link muscles to bones. In order to move, our muscles contract which pulls on the appropriate tendon which in turn pulls on the appropriate bone.