Heart Failure Â». Heart failure is the pathophysiologic state in which the heart, via an abnormality of cardiac function (detectable or not), fails to pump blood at a rate commensurate with the requirements of the metabolizing tissues and/or pumps only from an abnormally elevated diastolic filling pressure.
(Physiology) a glandular organ of vertebrates, consisting in man of two lobes situated below the thyroid. In early life it produces lymphocytes and is thought to influence certain immunological responses.
The definition of a gland is an organ or group of cells that releases substances or waste from the body. An example of a gland is the thyroid. any organ or specialized group of cells that produces secretions, as insulin or bile, or excretions, as urine: some glands, as the liver and kidneys, have ducts that empty into an organ: the ductless (or endocrine) glands, as the thyroid and adrenals, secrete hormones.