What are the symptoms of asphyxia

summary

It is difficult to avoid birth, aging and death in one's life. Many times, there are many ways of death. Sometimes, there will be asphyxia. I would like to explain the symptoms of asphyxia to you.

What are the symptoms of asphyxia

Symptom 1: facial swelling and cyanosis. Due to the compression of the neck, the jugular vein is closed, and the carotid artery and pulse pressure are not closed completely. The blood can only flow to the head, but not to the heart. As a result, the head is stagnant and the face is swollen. The reduced hemoglobin in the capillaries increased, making the face appear cyanosis, lips, nails cyanosis, etc. This phenomenon is more common in strangled, strangled and untypical hanged corpses. In the case of typical anteroposterior strangulation, the blood flow in the blood vessels was completely interrupted, so the face of the asphyxiated person was as pale as snow.

Symptom 2: subconjunctival hemorrhage. Due to the high blood stasis of blood vessels in the head and face, the denaturation of capillary endothelial cells due to hypoxia, the increase of permeability, and the increase of internal pressure, as well as the loose tissue under the conjunctival membrane of the eye, it is common for strangled or strangled corpses to have red or reddish Brown punctate bleeding in the upper and lower eyelid syneczema, near the hole, inside and outside the corner of the eye It can be fused into blood spots; sometimes, bleeding spots of different sizes can be seen on the skin of face and neck; sometimes, bleeding can be seen on the wall of external auditory canal and nasal cavity.

Symptom 3: jugular vein distention. Due to the obstruction of blood flow in the head, the jugular vein may be extremely stagnant, and the superficial jugular vein may be distended. It's all because asphyxia causes people's vascular erection, a normal reaction.

matters needing attention

In most cases, the harm of limited space can be completely prevented. For example, strengthen training and education, improve the management system, strictly implement the operating procedures, equipped with necessary personal protective equipment and emergency rescue equipment. We should cherish life, stay away from the things and environment that threaten life, and pay attention to the cultivation of good living habits.