Definition

Noun A parietal gyrus is any one of the raised, folded ridges of tissue on the outer surface of the parietal lobe of the cerebrum. These folds are separated by grooves called sulci.

Usage

The term is used in neuroanatomy to describe the specific anatomical structures within the parietal lobe of the brain. * The postcentral gyrus is a major parietal gyrus responsible for processing sensory information. * Damage to a specific parietal gyrus can affect spatial reasoning or sensory perception. * Researchers mapped the function of each parietal gyrus.

Advanced Usage

• "Superior parietal gyrus": Refers to the gyrus located on the upper part of the parietal lobe, involved in spatial orientation and attention.
• "Inferior parietal gyrus": Refers to the gyrus on the lower part, crucial for language processing and mathematical cognition.

Variants and Related Words

• Gyrus (pl. Gyri): The general term for a fold or ridge on the cerebral cortex.
• Parietal lobe: The region of the cerebrum where the parietal gyri are located.
• Sulcus (pl. Sulci): The groove or furrow that separates adjacent gyri.

Synonyms

• Cerebral convolution (in the context of the parietal lobe).

Related Terms (Not Phrasal Verbs or Idioms)

• Cortex: The outer layer of the cerebrum where the gyri are located.
• Contralateral: Refers to how one parietal gyrus typically processes sensory information from the opposite side of the body.

Noun

1. any of the convolutions of the outer surface of the parietal lobe of the cerebrum