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Related Concept Videos

Somatosensation01:33

Somatosensation

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The somatosensory system relays sensory information from the skin, mucous membranes, limbs, and joints. Somatosensation is more familiarly known as the sense of touch. A typical somatosensory pathway includes three types of long neurons: primary, secondary, and tertiary. Primary neurons have cell bodies located near the spinal cord in groups of neurons called dorsal root ganglia. The sensory neurons of ganglia innervate designated areas of skin called dermatomes.
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Somatosensory, Motor, and Association Cortex01:23

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The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at...
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Motor and Sensory Areas of the Cortex01:14

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The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
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Functional Brain Systems: Limbic System01:15

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The limbic system, often called the "emotional brain," is a complex set of structures located deep within the brain. The intricate network of the limbic system supports a wide range of psychological functions, from emotional regulation to memory formation and sensory processing. This functional brain region encompasses specific parts of the diencephalon and the cerebrum, integrating the higher mental functions of the cerebral cortex with the primitive emotional responses of the deep brain...
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Overview of Anatomy and Physiology01:24

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Human anatomy is the scientific study of the body's structures. Some of these structures are very small and can only be observed and analyzed with the assistance of a microscope. Other larger structures can readily be seen, manipulated, measured, and weighed. The word "anatomy" comes from a Greek root that means "to cut apart." Human anatomy was first studied by observing the body's exterior and the wounds of soldiers and other injuries. Later, physicians were allowed to...
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Related Experiment Video

Updated: Apr 6, 2026

Functional Near Infrared Spectroscopy of the Sensory and Motor Brain Regions with Simultaneous Kinematic and EMG Monitoring During Motor Tasks
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Functional and Dysfunctional Sensorimotor Anatomy and Imaging.

John L Ulmer1, Andrew P Klein1, Leighton P Mark1

  • 1Department of Radiology, Medical College of Wisconsin, 9200 W. Wisconsin Avenue, Milwaukee, WI 53226.

Seminars in Ultrasound, CT, and MR
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PubMed
Summary
This summary is machine-generated.

Understanding the human sensorimotor system

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Area of Science:

  • Neuroscience
  • Radiology

Background:

  • The sensorimotor system integrates brain and body functions.
  • It involves complex anatomical, physiological, and functional relationships.
  • Key areas include primary sensorimotor, premotor, supplementary motor, and somatosensory cortices.

Purpose of the Study:

  • To highlight the importance of understanding sensorimotor system anatomy and function.
  • To emphasize how this knowledge improves neuroradiology practice.
  • To outline scenarios requiring presurgical functional brain mapping.

Main Methods:

  • Localization of sensorimotor areas using neuroimaging.
  • Familiarity with sulcal and gyral landmarks for anatomical identification.
  • Application of knowledge in diagnostic considerations and patient care.

Main Results:

  • Accurate localization of sensorimotor cortices is achievable with neuroimaging.
  • Understanding sensorimotor function and dysfunction enhances diagnostic capabilities.
  • Presurgical mapping is crucial in complex neurological cases.

Conclusions:

  • A comprehensive grasp of the sensorimotor system is vital for neuroradiologists.
  • This knowledge directly impacts diagnostic accuracy and patient management.
  • Functional brain mapping aids in challenging neurosurgical and radiological evaluations.