Search results
Results from the WOW.Com Content Network
The precentral gyrus is a prominent gyrus on the surface of the posterior frontal lobe of the brain. It is the site of the primary motor cortex that in humans is cytoarchitecturally defined as Brodmann area 4.
While these gyri are adjacent to each other in the brain, they have distinct attributes and functions. In this article, we will explore and compare the characteristics of the postcentral gyrus and precentral gyrus, shedding light on their unique contributions to human brain function.
The postcentral gyrus receives and integrates sensory information relating to touch, pain, temperature, vibration, proprioception and movement. Each postcentral gyrus contains a topographical map of the body parts from the contralateral half of the body, known as the sensory homunculus.
The precentral gyrus is the anatomical location of the primary motor cortex and is responsible for the control of voluntary movement. Lesions occurring within the precentral gyrus affect upper motor neurons, and therefore present with upper motor neuron signs.
The precentral gyrus is the elevated ridge of brain tissue located on the dorsolateral and lateral surfaces of the frontal lobe of each cerebral hemisphere, with its upper aspect also extending onto the medial surface.
The postcentral gyrus is on the lateral surface of the parietal lobes between the central sulcus and postcentral sulcus. The postcentral gyrus contains the primary somatosensory cortex, a significant brain region responsible for proprioception.
precentral gyrus: The precentral gyrus lies in front of the postcentral gyrus and is the site of the primary motor cortex (Brodmann area 4). Cortical Homunculus.
This are is also known as the primary motor cortex (or Precentral gyrus) (may possibly include part of Area 6). It is responsible for executing motor movements, which includes contralateral finger/hand/wrist or orofacial movements, learned motor sequences, breathing control, and voluntary blinking.
The postcentral gyrus lies in the parietal lobe, posterior to the central sulcus. It is the site of the primary somatosensory cortex. The somatosensory homunculus is the representation of the distribution of the contralateral body parts on the gyrus.
In neuroanatomy, the postcentral gyrus is a prominent gyrus in the lateral parietal lobe of the human brain. It is the location of the primary somatosensory cortex, the main sensory receptive area for the sense of touch.