Search results
Results from the WOW.Com Content Network
a reduction of blood flow to the heart that can be caused by stenosis, spasm, or acute occlusion (by an embolus) of the heart's arteries. resistance of the blood vessels. This can be caused by narrowing of the blood vessels; a decrease in radius. [34] Blood flow is proportional to the radius of the artery to the fourth power. [35]
Dr. Denniston notes that signs of poor blood circulation can include leg pain after walking, cold hands and feet, white fingertips, varicose veins, slow wound healing, numbness, tingling, blue ...
Symptoms may worsen over the course of several minutes. [4] Typical angina is aggravated by physical activity or emotional stress and is relieved by rest or nitroglycerin. [4] The pain may radiate to other parts of the body, most commonly the left arm or neck. [7] In some individuals, the pain may be less severe and present as pressure or ...
Shock is the state of insufficient blood flow to the tissues of the body as a result of problems with the circulatory system. Initial symptoms of shock may include weakness, tachycardia, hyperventilation, sweating, anxiety, and increased thirst. [1] This may be followed by confusion, unconsciousness, or cardiac arrest, as complications worsen. [1]
Vital signs (also known as vitals) are a group of the four to six most crucial medical signs that indicate the status of the body's vital (life-sustaining) functions. These measurements are taken to help assess the general physical health of a person, give clues to possible diseases, and show progress toward recovery.
It can cause the affected limb to swell, and cause pain and an overlying skin rash. In the worst case, a deep vein thrombosis can extend, or a part of a clot can break off as an embolus and lodge in a pulmonary artery in the lungs, known as a pulmonary embolism .The decision to treat deep vein thrombosis depends on its size, a person's symptoms ...
Blood flows through the heart in one direction, from the atria to the ventricles, and out through the pulmonary artery into the pulmonary circulation, and the aorta into the systemic circulation. The pulmonary artery (also trunk) branches into the left and right pulmonary arteries to supply each lung. Blood is prevented from flowing backwards ...
The heart propels the circulation of the blood, which serves as a "transportation system" to transfer oxygen, fuel, nutrients, waste products, immune cells and signaling molecules (i.e. hormones) from one part of the body to another. Paths of blood circulation within the human body can be divided into two circuits: the pulmonary circuit, which ...