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Determining muscle tone in newborns: Arm recoil is a neurological examination of neonate for detecting the muscle tone. [1] [2] ... The greater the tone development ...
The low muscle tone associated with hypotonia must not be confused with low muscle strength or the definition commonly used in bodybuilding. Neurologic muscle tone is a manifestation of periodic action potentials from motor neurons. As it is an intrinsic property of the nervous system, it cannot be changed through voluntary control, exercise ...
The New Ballard Score is an extension of the above to include extremely pre-term babies, i.e., up to 20 weeks. The scoring relies on the intra-uterine changes that the fetus undergoes during its maturation. Whereas the neurological criteria depend mainly upon muscle tone, the physical ones rely on anatomical changes.
When a child is born with Möbius syndrome, there may be difficulty in closing the mouth or swallowing. The tongue may fasciculate (quiver) or be hypotonic (low muscle tone). The tongue may be larger or smaller than average. There may be low tone of the muscles of the soft palate, pharynx, and the masticatory system. The palate may be arched ...
The asymmetrical tonic neck reflex (ATNR) in a two-week-old female, with extension of the left extremities and flexion of the right. The asymmetrical tonic neck reflex (ATNR) is a primitive reflex found in newborn humans that normally vanishes around 6 months of age.
Congenital myopathy is a very broad term for any muscle disorder present at birth. This defect primarily affects skeletal muscle fibres and causes muscular weakness and/or hypotonia. Congenital myopathies account for one of the top neuromuscular disorders in the world today, comprising approximately 6 in 100,000 live births every year. [1]
The tonic labyrinthine reflex (TLR) is a primitive reflex found in newborn humans. With this reflex, tilting the head back (extension) while lying on the stomach causes the back to stiffen and even arch backwards, the legs to straighten, stiffen, and push together, the toes to point, the arms to straighten (not bend at the elbows and wrists, and the hands to become fisted or the fingers to curl).
The afflicted offspring typically show skeletal muscle hypotonia (i.e., poor muscle tone) and weaknesses that are most prominent in head and neck muscles and cause facial diplegia (i.e., paralysis or weakness of the skeletal muscles on both sides of the face), reduced control of swallowing; weak crying, sucking, and chewing; the inability to ...