- Brain reflex
- (brān) [Walter Russell Brain, English neurologist, 1895–1966] see under reflex.
Medical dictionary. 2011.
Brain reflex
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Brain reflex — an extension of the hemiplegic flexed upper limb when the patient assumes a quadrupedal posture; called also quadrupedal extensor r … Medical dictionary
Brain stem death — is the specific formulation of the concept of brain death formally adopted in the UK in 1995.DiagnosisThe diagnostic features of brain stem death are a deep coma, dependence for oxygenation on a mechanical ventilator, and the absence of specified … Wikipedia
Brain death — is a legal definition of death that emerged in the 1960s as a response to the ability to resuscitate individuals and mechanically keep the heart and lungs working. In simple terms, brain death is the irreversible end of all brain activity… … Wikipedia
reflex arc — n the complete nervous path that is involved in a reflex * * * the nervous circuit involved in a reflex, being at its simplest a sensory nerve with a receptor, linked at a synapse in the brain or spinal cord with a motor nerve, which supplies a… … Medical dictionary
Reflex — A reaction that is involuntary. The corneal reflex is the blink that occurs with irritation of the eye. The nasal reflex is a sneeze. * * * 1. An involuntary reaction in response to a stimulus applied to the periphery and transmitted to the… … Medical dictionary
Reflex arc — A reflex arc is a neural pathway that controls an action reflex. In higher animals, most sensory neurons do not pass directly into the brain, but synapse in the spinal cord. This characteristic allows reflex actions to occur relatively quickly by … Wikipedia
Brain — This article is about the brains of all types of animals, including humans. For information specific to the human brain, see Human brain. For other uses, see Brain (disambiguation). A chimpanzee brain The brain is … Wikipedia
Reflex — For other uses, see Reflex (disambiguation). A reflex action, also known as a reflex, is an involuntary and nearly instantaneous movement in response to a stimulus.[1] A true reflex is a behavior which is mediated via the reflex arc; this does… … Wikipedia
reflex — n. an automatic or involuntary activity brought about by relatively simple nervous circuits, without consciousness being necessarily involved. Thus a painful stimulus such as a pinprick will bring about the reflex of withdrawing the finger before … The new mediacal dictionary
Brain — That portion of the central nervous system that is located within the skull. It functions as a primary receiver, organizer and distributor of information for the body. It has two (right and left) halves called "hemispheres." * * *… … Medical dictionary
