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The International Classification of Headache Disorders (ICHD) is a detailed hierarchical classification of all headache-related disorders published by the International Headache Society. [1]
A headache, also known as cephalalgia, is the symptom of pain in the face, head, or neck.It can occur as a migraine, tension-type headache, or cluster headache. [1] [2] There is an increased risk of depression in those with severe headaches.
The blood–brain barrier (BBB) is a highly selective semipermeable border of endothelial cells that regulates the transfer of solutes and chemicals between the circulatory system and the central nervous system, thus protecting the brain from harmful or unwanted substances in the blood. [1]
Neurology (from Greek: νεῦρον (neûron), "string, nerve" and the suffix -logia, "study of") is the branch of medicine dealing with the diagnosis and treatment of all categories of conditions and disease involving the nervous system, which comprises the brain, the spinal cord and the peripheral nerves. [1]
A woman keening at a wake in County Kerry in the early nineteenth century, depicted from the memories of Samuel Carter Hall.She had "black, uncombed locks" and a blue cloak, and held her hands above the body then dramatically waved them in the air "as if by sudden inspiration".
The glymphatic system, glymphatic clearance pathway or paravascular system is an organ system for metabolic waste removal in the central nervous system (CNS) of vertebrates. ...
In vertebrates, the circulatory system is a system of organs that includes the heart, blood vessels, and blood which is circulated throughout the body. [1] [2] It includes the cardiovascular system, or vascular system, that consists of the heart and blood vessels (from Greek kardia meaning heart, and Latin vascula meaning vessels).
Li Kening (Chinese: 李克寧) (died March 25, 908 [1] [2]) was a younger brother of the late Chinese Tang dynasty warlord Li Keyong, the Prince of Jin.After Li Keyong's death, Li Kening initially served as a key advisor to Li Keyong's son and successor Li Cunxu (the future Emperor Zhuangzong of Later Tang), but soon was persuaded by his wife Lady Meng to try to take over from Li Cunxu.