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.
In general an axle is a centre shaft for a rotating wheel or gear. So In general axle shaft is on which the hub of the wheel is mounted. there should essentially be two rear axles in a vehicle, for each of the left and right wheel/s (hub) In a rear wheel drive, on side on the axle is attached to the differential assembly and the other side is attached to the hub.