supplies blood to the anterior (front) parts of the scalp, ear, face, neck, and side of the head. Facial artery external maxillary artery supplies blood to the lower region of the face, mouth, and nose.
Axle bushing is an independent plain bearing that is inserted into a housing to provide a bearing surface for rotary applications; this is the most common form of a plain bearing.[8] Common designs include solid (sleeve and flanged), split, and clenched bushings.
A bushing is usually a metal sleeve to ride on a rod, with a rubber surround. The rubber surround is captured in between or in another fixture, to provide some movement and vibration absorbtion. They can go bad after a number of years and can be accelerated by getting oil on them.