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EMG activity of the orbicularis oris superior, orbicularis oris inferior, and masseter muscles of a cleft-palate child. 1986

R Olscamp, and R A McGuire, and M Rastatter

The peak amplitude of EMG activity was measured from the orbicularis oris superior (OOS), orbicularis oris inferior (OOI), and masseter muscles of a cleft-palate child and compared to data obtained from a normal child. Both children evidenced similar levels of average peak EMG activity and variability of performance across the three muscles. These data were interpreted to suggest that limitations in the function of the OOS, OOI, and masseter muscles do not contribute to the articulatory anomalies exhibited by the cleft-palate child.

UI MeSH Term Description Entries
D008297 Male Males
D008406 Masseter Muscle A masticatory muscle whose action is closing the jaws. Masseter Muscles,Muscle, Masseter,Muscles, Masseter
D008410 Masticatory Muscles Muscles arising in the zygomatic arch that close the jaw. Their nerve supply is masseteric from the mandibular division of the trigeminal nerve. (From Stedman, 25th ed) Masticatory Muscle,Muscle, Masticatory,Muscles, Masticatory
D002675 Child, Preschool A child between the ages of 2 and 5. Children, Preschool,Preschool Child,Preschool Children
D002971 Cleft Lip Congenital defect in the upper lip where the maxillary prominence fails to merge with the merged medial nasal prominences. It is thought to be caused by faulty migration of the mesoderm in the head region. Harelip,Cleft Lips,Harelips,Lip, Cleft,Lips, Cleft
D002972 Cleft Palate Congenital fissure of the soft and/or hard palate, due to faulty fusion. Cleft Palate, Isolated,Cleft Palates,Palate, Cleft,Palates, Cleft
D004576 Electromyography Recording of the changes in electric potential of muscle by means of surface or needle electrodes. Electromyogram,Surface Electromyography,Electromyograms,Electromyographies,Electromyographies, Surface,Electromyography, Surface,Surface Electromyographies
D005152 Facial Muscles Muscles of facial expression or mimetic muscles that include the numerous muscles supplied by the facial nerve that are attached to and move the skin of the face. (From Stedman, 25th ed) Mimetic Muscles,Facial Muscle,Mimetic Muscle,Muscle, Facial,Muscle, Mimetic,Muscles, Facial,Muscles, Mimetic
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001184 Articulation Disorders Disorders of the quality of speech characterized by the substitution, omission, distortion, and addition of phonemes. Phonological Impairments,Speech Articulation Disorders,Articulation Disorders, Developmental,Developmental Articulation Disorders,Disarticulation Disorders,Misarticulation,Phonology Impairment,Unintelligible Articulation,Articulation Disorder,Articulation Disorder, Developmental,Articulation Disorder, Speech,Articulation Disorders, Speech,Articulation, Unintelligible,Articulations, Unintelligible,Developmental Articulation Disorder,Disarticulation Disorder,Disorder, Disarticulation,Disorders, Disarticulation,Impairment, Phonological,Impairment, Phonology,Impairments, Phonological,Impairments, Phonology,Phonological Impairment,Phonology Impairments,Speech Articulation Disorder,Unintelligible Articulations

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