Motor cortical homunculus and the precentral gyrus - Quick Anatomy | Kenhub
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The_Physiology_Hub on Instagram: "The motor homunculus is a distorted, body-mapped representation of muscles on the primary motor cortex (precentral gyrus). Each body part is represented according to the degree of fine motor control it requires, not its actual size. Hence, the hands, lips, face, and tongue appear disproportionately large, while the trunk and lower limbs are smaller. It controls voluntary movements of the opposite side of the body (contralateral control) and is arranged somatotop
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The_Physiology_Hub on Instagram: "The motor homunculus is a distorted, body-mapped representation of muscles on the primary motor cortex (precentral gyrus). Each body part is represented according to the degree of fine motor control it requires, not its actual size. Hence, the hands, lips, face, and tongue appear disproportionately large, while the trunk and lower limbs are smaller. It controls voluntary movements of the opposite side of the body (contralateral control) and is arranged somatotop
153 views3 months ago
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A "motor homunculus" can be visualized as an overlay on the precentral gyrus. The reason the facial…
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Have you ever heard of the homunculus? 🤩 The homunculus is an extraordinary part of the brain that maps the entire body of motor and somatosensory function within two cortical strips found in the frontal and parietal lobes. 💎 When we see deficits in motor and sensory function, we can determine where lesions are in the homunculus and provide a focused beginning point for our rehab techniques. 🧠 Lesions can come from strokes, brain damage through toxicology, traumatic brain injury and neurodege
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