Premotor cortex
Premotor Cortex
The Premotor Cortex (pronunciation: pre-mo-tor kor-teks) is an area of the brain located in the frontal lobe, anterior to the primary motor cortex. It plays a crucial role in the planning, selection, and execution of motor skills and voluntary movements.
Etymology
The term "Premotor Cortex" is derived from the Latin words 'pre' meaning 'before', and 'motor' which refers to movement. Thus, it signifies the area of the brain that prepares for movement before it is executed.
Function
The Premotor Cortex is involved in the preparation and guidance of movements. It receives information from the somatosensory cortex, processes it, and sends the processed information to the primary motor cortex for action. It is also involved in the learning of new motor skills.
Subdivisions
The Premotor Cortex can be divided into two main areas: the dorsal premotor cortex (PMd) and the ventral premotor cortex (PMv). The PMd is involved in the planning of spatially guided movements, while the PMv is involved in the control of distal movements and in the recognition of objects by touch.
Related Terms
- Motor Cortex: The part of the brain where nerve impulses initiate voluntary muscular activity.
- Frontal Lobe: The part of the brain associated with motor skills, higher level cognition, and expressive language.
- Somatosensory Cortex: The main sensory receptive area for the sense of touch.
See Also
External links
- Medical encyclopedia article on Premotor cortex
- Wikipedia's article - Premotor cortex
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