orbicularis reaction
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reaction — 1. The response of a muscle or other living tissue or organism to a stimulus. 2. The color change effected in litmus and certain other organic pigments by contact with substances such as acids or alkalies; also the property that such substances… … 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
eye, human — ▪ anatomy Introduction specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit The eye is protected from mechanical injury… … Universalium
Sign — Any abnormality that indicates a disease process, such as a change in appearance, sensation, or function, that is observed by a physician when evaluating a patient. * * * 1. Any abnormality indicative of disease, discoverable on examination of… … Medical dictionary
response — 1. The reaction of a muscle, nerve, gland, or other excitable tissue to a stimulus. 2. Any act or behavior, or its constituents, that a living organism is capable of emitting. Reflexes are usually excluded because they are typically elicited by a … Medical dictionary
phenomenon — 1. A symptom; an occurrence of any sort, whether ordinary or extraordinary, in relation to a disease. 2. Any unusual fact or occurrence. [G. phainomenon, fr. phaino, to cause to appear] adhesion p. a p. manifested by the adherence of antigen… … Medical dictionary
Chronic Progressive External Ophthalmoplegia — (CPEO) is one manifestation in a constellation of associated mitochondrial DNA mutation known as mitochondrial myopathy or cytopathy that cause ocular motility disturbances. Introduction CPEO is a rare disease that may affect those of all ages,… … Wikipedia
Chronic progressive external ophthalmoplegia — Classification and external resources ICD 10 H49.4 ICD 9 378.72 … Wikipedia
Prepulse inhibition — (PPI) is a neurological phenomenon in which a weaker prestimulus (prepulse) inhibits the reaction of an organism to a subsequent strong startling stimulus (pulse). The stimuli are usually acoustic, but tactile, light, airpuff stimuli are also… … Wikipedia
Instinct — Pour les articles homonymes, voir Instinct (homonymie). L’instinct est la totalité ou partie héréditaire et innée des comportements, tendances comportementales et mécanismes physiologiques sous jacents des animaux. Présent sous différentes formes … Wikipédia en Français
