An OSHA competent person is defined as one who is capable of identifying existing and predictable hazards in the surroundings or working conditions which are unsanitary, hazardous, or dangerous to employees, and who has authorization to take prompt corrective measures to eliminate them.
Ventral is the front-facing side of the human body. All parts mentioned are on the front side. A is the face, b is the sternum, c is the naval, d is the groin, and e is the knee