The force or resistance against which the heart pumps.
Severe shock caused by an allergic reaction.
An unusual or exaggerated allergic reaction to foreign protein or other substances.
A swelling or enlargement of a part of an artery, resulting from weakening of the arterial wall.
autonomic nervous system
The part of the nervous system that regulates involuntary functions, such as heart rate, blood pressure, digestion, and sweating.
Shock caused by inadequate function the heart, or pump failure.
The early stage of shock, in which the body can still compensate for blood loss.
Bluish color of the skin resulting from poor oxygenation of the circulating blood.
The late stage of shock when blood pressure is falling.
Loss of water from the tissues of the body.
A condition that occurs when there is widespread dilation of the small arterioles, small venules, or both.
The presence of abnormally large amounts of fluid between cells in body tissues, causing swelling of the affected area.
A balance of all systems of the body.
A condition in which the internal body temperature falls below 95 degrees Fahrenheit (35 degrees Celsius), usually as a result of prolonged exposure to cool or freezing temperatures.
Shock caused by fluid or blood loss.
The final stage of shock, resulting in death.
The ability of the heart to contract.
Circulatory failure caused by paralysis of the nerves that control the size of the blood vessels, leading to widespread dilation; seen in patients with spinal cord injuries.
Shock that occurs when there is a block to blood flow in the heart or great vessels, causing an insufficient blood supply to the body's tissues.
Circulation of blood within an organ or tissue in adequate amounts to meet the cells' current needs.
The precontraction pressure in the heart as the volume of blood builds up.
Shock caused by a sudden temporary reduction in blood supply to the brain that causes fainting (syncope).
Developing a sensitivity to a substance that initially caused no allergic reaction.
Shock caused by severe infection, usually a bacterial infection.
A condition in which the circulatory system fails to provide sufficient circulation to enable every body part to perform its function; also called hypoperfusion.
Circular muscles that encircle and, by contracting, constrict a duct, tube, or opening.