The goals of treating human bites to the head and neck region are the restoration of the patient's facial appearance and function. [19, 20] In the past, these wounds were routinely left open because of the high rate of wound infection.
A tow ball mounted on the rear of a vehicle. A tow hitch (or tow bar) is a device attached to the chassis of a vehicle for towing, or a towbar to an aircraft nose gear.
Class II. 1  Class II hitches are weight carrying (WC) hitches rated up to 3500 lbs. 2  gross trailer weight (GTW) with a maximum trailer tongue weight (TW) of 300 lbs. 3  A Class II hitch usually has a 1-1/4 square receiver opening.lass I. 1  Class I hitches are weight carrying (WC) hitches rated up to 2000 lbs. 2  A Class I hitch usually has a 1-1/4 square receiver opening. 3  A higher class drawbar does not increase the towing capacity of the hitch. 4  Class I hitches usually attach to the bumper, truck pan or vehicle frame.