Biomaterial Database

[Reflex response of the masseter muscle after percussion of the chin and electrical stimulation of the upper lip in patients with central motor disorders]. 1991

L Lisý

Katedra neurológie Institútu pre dalsie vzdelávanie lekárov a farmaceutov, Bratislava.

In 23 patients with central motor disorders (spastic hemiparesis, pseudobulbar syndrome and parkinsonism) reflex responses in both masseters were evoked during their relaxation and contraction by percussion with a reflex hammer on the chin and by electric stimulation of the upper lip. For recording of the reflex responses the electromyographic method was used. On the side of the spastic hemiparesis, as compared with the finding on the non-paretic side, the author found changes in the short-, medium and late-latency excitation and inhibition segments of the reflex response. In patients with parkinsonism the medium-latency portion of the reflex response after percussion of the chin from above as well as from below was satisfactory. The late latency excitation response after percussion of the chin from below was greater than its corresponding part evoked by percussion of the chin from above. In patients with the pseudobulbar syndrome the inhibitory parts of the reflex responses after percussion of the chin were weak. The results of the examination provided thus more detailed information on disorders of supranuclear control of masseter muscles.

UI	MeSH Term	Description	Entries
D008046	Lip	Either of the two fleshy, full-blooded margins of the mouth.	Philtrum,Lips,Philtrums
D008297	Male		Males
D008406	Masseter Muscle	A masticatory muscle whose action is closing the jaws.	Masseter Muscles,Muscle, Masseter,Muscles, Masseter
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D009069	Movement Disorders	Syndromes which feature DYSKINESIAS as a cardinal manifestation of the disease process. Included in this category are degenerative, hereditary, post-infectious, medication-induced, post-inflammatory, and post-traumatic conditions.	Dyskinesia Syndromes,Etat Marbre,Status Marmoratus,Movement Disorder Syndromes,Dyskinesia Syndrome,Movement Disorder,Movement Disorder Syndrome
D010243	Paralysis	A general term most often used to describe severe or complete loss of muscle strength due to motor system disease from the level of the cerebral cortex to the muscle fiber. This term may also occasionally refer to a loss of sensory function. (From Adams et al., Principles of Neurology, 6th ed, p45)	Palsy,Plegia,Todd Paralysis,Todd's Paralysis,Palsies,Paralyses,Paralysis, Todd,Paralysis, Todd's,Plegias,Todds Paralysis
D010300	Parkinson Disease	A progressive, degenerative neurologic disease characterized by a TREMOR that is maximal at rest, retropulsion (i.e. a tendency to fall backwards), rigidity, stooped posture, slowness of voluntary movements, and a masklike facial expression. Pathologic features include loss of melanin containing neurons in the substantia nigra and other pigmented nuclei of the brainstem. LEWY BODIES are present in the substantia nigra and locus coeruleus but may also be found in a related condition (LEWY BODY DISEASE, DIFFUSE) characterized by dementia in combination with varying degrees of parkinsonism. (Adams et al., Principles of Neurology, 6th ed, p1059, pp1067-75)	Idiopathic Parkinson Disease,Lewy Body Parkinson Disease,Paralysis Agitans,Primary Parkinsonism,Idiopathic Parkinson's Disease,Lewy Body Parkinson's Disease,Parkinson Disease, Idiopathic,Parkinson's Disease,Parkinson's Disease, Idiopathic,Parkinson's Disease, Lewy Body,Parkinsonism, Primary
D010474	Percussion	Act of striking a part with short, sharp blows as an aid in diagnosing the condition beneath the sound obtained.	Percussions
D012018	Reflex	An involuntary movement or exercise of function in a part, excited in response to a stimulus applied to the periphery and transmitted to the brain or spinal cord.
D002561	Cerebrovascular Disorders	A spectrum of pathological conditions of impaired blood flow in the brain. They can involve vessels (ARTERIES or VEINS) in the CEREBRUM, the CEREBELLUM, and the BRAIN STEM. Major categories include INTRACRANIAL ARTERIOVENOUS MALFORMATIONS; BRAIN ISCHEMIA; CEREBRAL HEMORRHAGE; and others.	Brain Vascular Disorders,Intracranial Vascular Disorders,Vascular Diseases, Intracranial,Cerebrovascular Diseases,Cerebrovascular Insufficiency,Cerebrovascular Occlusion,Brain Vascular Disorder,Cerebrovascular Disease,Cerebrovascular Disorder,Cerebrovascular Insufficiencies,Cerebrovascular Occlusions,Disease, Cerebrovascular,Diseases, Cerebrovascular,Insufficiencies, Cerebrovascular,Insufficiency, Cerebrovascular,Intracranial Vascular Disease,Intracranial Vascular Diseases,Intracranial Vascular Disorder,Occlusion, Cerebrovascular,Occlusions, Cerebrovascular,Vascular Disease, Intracranial,Vascular Disorder, Brain,Vascular Disorder, Intracranial,Vascular Disorders, Brain,Vascular Disorders, Intracranial