Some motor areas in the human cortex. The supplementary motor area is shown in pink. The supplementary motor area (SMA) is a part of the motor cortex of primates that contributes to the control of movement. It is located on the midline surface of the hemisphere just in front of (anterior to) the primary motor cortex leg representation.

2021年3月24日 · SMA Syndrome stands for Supplementary Motor Area Syndrome. It is a temporary neurosurgical condition first documented in 1977 and arises from damage to the supplementary motor area of the brain. It occurs in 26-100% of surgeries that take place in one of the two supplementary motor areas.

The supplementary motor area (SMA) syndrome is a frequently encountered clinical phenomenon associated with surgery of the dorsomedial prefrontal lobe. The region has a known motor sequencing function and the dominant pre-SMA specifically is associated with more complex language functions; the SMA i …

2024年7月30日 · Spinal muscular atrophy (SMA) refers to a group of hereditary diseases which affect motor neurons. Motor neurons are specialized nerve cells in the brain and spinal cord that control movement in the arms, legs, face, chest, throat, and tongue, as well as skeletal muscle activity, including muscles used for speaking, walking, swallowing, and ...

The Supplementary Motor Area (SMA) is located in the dorsomedial part of the frontal cortex. It is divided anatomically at the anterior commisure into the SMA proper (caudal part) and the preSMA (rostral part).

The supplementary motor area (SMA) syndrome is a characteristic neurosurgical syndrome that can occur after unilateral resection of the SMA. Clinical symptoms may vary from none to a global akinesia, predominantly on the contralateral side, with preserved muscle strength and mutism.

2021年1月15日 · Brain involvement is under-investigated in spinal muscular atrophy (SMA) type 1. Neuropathological data suggest progressive brain involvement in severe forms of SMA. Impaired cognitive performances are reported in small groups with SMA type 1. Data on language in those with SMA type 1 are limited to parent reports and non-formal assessments.

2021年5月15日 · The supplementary motor area (SMA) syndrome is a well-known phenomenon after dorsomedial prefrontal lobe surgery. The SMA region is a common hotspot for low-grade glioma (LGG) development and the syndrome is thus most frequent after …

2022年8月4日 · Spinal muscular atrophy (SMA) is a neurodegenerative disorder caused by mutations in SMN1 (encoding survival motor neuron protein (SMN)). Reduced expression of SMN...

2022年9月1日 · Supplementary motor area syndrome (SMAS) may occur after frontal tumor surgery, with variable presentation and outcomes. We reviewed the literature on postoperative SMAS after brain tumor resection.