Use anatomical directions to complete the following: The trachea (windpipe) is Hair is The thumb is The heart is The ear is The abdomen is Thigh muscles are Skin is The shoulder is The hand is The rib cage is to the esophagus (throat). to muscle. to the ring finger. to the lungs. to the eye. to the thorax. to the femur (thigh bone). to skeletal muscles. to the elbow. to the elbow. to the upper arm.