<prompt> The investing layer of deep cervical fascia splits to enclose all of the following, except:Parotid and submandibular glandsSternocleidomastoid and vertebral arteriesTrapezius and sternocleidomastoid musclesSuprasternal and supraclavicular spaces  <response>: The investing layer of deep cervical fascia splits to enclose:Musclestrapezius and sternocleidomastoid.Salivary glands parotid and submandibular glands.Spaces suprasternal and supraclavicular spaces. 