#reflexe
- abdomen - A major anatomical region located between the thorax and the pelvis, bounded superiorly by the diaphragm and inferiorly by the plane of the pelvic inlet. It contains the main organs of the digestive and urinary systems. In psychiatric and neurological semiology, the clinical examination of the abdomen is crucial for identifying somatopsychic correlations, such as hypochondriasis (somatic delusion focused on abdominal organs), digestive manifestations of severe anxiety, or altered abdominal cutaneous reflexes in pyramidal syndromes.
- abdominal - Pertaining to the abdomen, relating to the abdomen, or located within this anatomical region. In psychiatric semiology, the adjective qualifies a wide range of dysfunctional clinical manifestations, such as 'abdominal aura' (a bizarre epigastric sensation preceding a temporal lobe epilepsy seizure) or 'abdominal migraine' (an idiopathic periodic manifestation, sometimes correlated with emotional lability in children). It also describes the localization of somatizations in anxiety-depressive disorders.
- abduce - To perform a movement of abduction, consisting of moving a limb, a limb segment, or the eyeball away from the median axis of the body or a reference axis. In neurological and psychiatric semiology, the patient's capacity to abduct certain muscular segments is actively tested to evaluate the integrity of peripheral motor nerves, the frontal cerebral cortex, or to identify signs of catatonic or oppositionist muscular resistance (negativism).
- abducție - The movement by which a limb, a limb segment, or the eyeball is moved away from the median axis of the body or a reference line. In neurological semiology, testing abduction (such as ocular abduction, performed by cranial nerve VI) is essential for locating brainstem lesions. In clinical psychiatry, resistance to passive abduction of the limbs is analyzed as a marker for waxy flexibility or catalepsy in catatonic syndromes.
- abdus - Adjectival form derived from the past participle of the verb 'abduce', describing a limb, a limb segment, or an organ (such as the eyeball) maintained or moved into a position of abduction (drawn away from the median axis of the body). In neuropsychiatric semiology, an abducted arm or finger position is clinically evaluated to identify spasticity, antalgic muscular contractures, or bizarre fixed postures (catalepsy) encountered in severe catatonic syndromes.
- Abendroth - A medical eponym derived from German onomastics, historically used in neuro-semiology and in describing motor dynamic anomalies (the Abendroth reflex or sign). In old treatises on clinical neurology, the term identified a particular alteration of deep tendon reflexes or a form of intermittent muscular contracture observed in patients with neurosyphilis or advanced states of catatonia. This sign was evaluated within the differential diagnosis of decerebrate rigidity and psychotic manifestations with an organic brain substrate.
- abia-abia - A compound form created by the adverbial reduplication of the term 'abia', used to express an extreme threshold, supreme effort, or an achievement at the absolute limit of physical or cognitive possibilities. In clinical records and medical rehabilitation reports, it is used as an informal or semi-clinical descriptive qualifier to emphasize that a biological function, reflex, or voluntary movement manifests to an infinitesimal, almost imperceptible degree (e.g., an exhausted patient who can only just barely breathe).
- abil - The quality of an individual to demonstrate motor dexterity, fine coordination, and speed in executing complex physical or cognitive tasks. In neurological semiology and occupational medicine, the term evaluates the integrity of the pyramidal and extrapyramidal tracts; an 'able' or 'skilful' patient presents intact reflexes, preserved praxia (the ability to execute coordinated intentional movements), and the absence of intentional tremor or ataxia.