Bursitis and tendinitis are both common conditions that cause swelling around muscles and bones. They occur most often in the shoulder, elbow, wrist, hip, knee, or ankle. A bursa is a small, fluid-filled sac that acts as a cushion between a bone and other moving body parts such as muscles, tendons, or skin.
In higher vertebrates, such as reptiles, birds and mammals, there are 12 pairs of cranial nerves. Lower vertebrates, such as fish and amphibians, have 10 pairs of cranial nerves. Continue Reading.
Cranial Nerves. Cranial nerves are mainly associated with head and neck (with the exception of vagus nerve) and are involved in transmission of both sensory and motor information to and from the brain. There are 12 pairs of cranial nerves, and these pairs are designated by number and name where the name may associate with its function. For example, the olfactory nerve is named as cranial nerve I and is responsible for vision. The optic spinal nerve, which is cranial nerve II, is responsible for vision / eyesight.