Front portion of the on either side, just above collar bone at the origin of lateral head of sternocleidomastoid muscle. May cause loss of consciousness due to trauma to artery located below collar bone and to sublingual nerve. May also cause shock and loss of motor functions.
Concavity on ventral surface of neck between sternum below and the hyoid bone above. May cause loss of consciousness due to blocking of windpipe.
Just below juncture of manubrium and sternum. May cause loss of consciousness due to trauma to heart, broncus and arteries supplying upper part of body, and trauma to pulmonary artery, leading to malfunction of respiratory system and shock.