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.
A peroneal tendon injury is a problem with the tendons and muscles on the outer side of your lower leg and foot. Tendons are strong bands of tissue that attach muscle to bone. The peroneal tendons help keep your foot and ankle stable when you walk. Tendons can be injured suddenly or they may be slowly damaged over time. You can have tiny or partial tears in your tendon. If you have a complete tear of your tendon, it is called a rupture.