parietal lobe

Examples of parietal lobe in the following topics:

• Cerebral Hemispheres and Lobes of the Brain

  • The brain is separated into four lobes: the frontal, temporal, occipital, and parietal lobes.
  • The parietal lobe is associated with sensory skills.
  • The parietal lobe is comprised of the somatosensory cortex and part of the visual system.
  • Several portions of the parietal lobe are important to language and visuospatial processing; the left parietal lobe is involved in symbolic functions in language and mathematics, while the right parietal lobe is specialized to process images and interpretation of maps (i.e., spatial relationships).
  • The Broca's area is at the back of the frontal lobe, and the Wernicke's area is roughly where the temporal lobe and parietal lobe meet.

• Cerebral Lobes

  • The cortex is divided into four main lobes: frontal, parietal, occipital, temporal.
  • The parietal lobe is a part of the brain positioned above (superior to) the occipital lobe and behind (posterior to) the frontal lobe.
  • Several portions of the parietal lobe are also important in language processing.
  • Portions of the parietal lobe are involved with visuospatial processing.
  • Distinguish between the frontal, temporal, parietal, and occipital lobes of the cerebral cortex

• Brain: Cerebral Cortex and Brain Lobes

  • The cerebral cortex of the brain is divided into four lobes responsible for distinct functions: frontal, parietal, temporal, and occipital.
  • The parietal lobe is located at the top of the brain.
  • Neurons in the parietal lobe are involved in speech and reading.
  • The parietal lobe contains a somatosensory map of the body similar to the motor cortex.
  • The human cerebral cortex includes the frontal, parietal, temporal, and occipital lobes, each of which is involved in a different higher function.

• Cerebral Cortex

  • The cortex is divided into four different lobes (the parietal, occipital, temporal, and frontal lobes), each with a different specific function.
  • One notable sulcus is the central sulcus, or the wrinkle dividing the parietal lobe from the frontal lobe.
  • A diagram of the brain identifying the different lobes by color.
  • Counterclockwise from bottom: It contains the parietal lobe (green), the occipital lobe (red), the temporal lobe (yellow), and the frontal lobe (blue).

• Overview of the Cerebrum

  • Each hemisphere of the mammalian cerebral cortex can be broken down into four functionally and spatially defined lobes: frontal, parietal, temporal, and occipital.
  • Two of the parietal lobe's main functions are processing somatosensation (touch sensations such as pressure, pain, heat, cold) and proprioception (the sense of how parts of the body are oriented in space).
  • The temporal lobe is located at the base of the brain by the ears.
  • The occipital lobe is located at the back of the brain.
  • Speech comprehension is attributed to Wernicke's area, at the temporal-parietal lobe junction.

• Human Language and the Brain

  • Broca's area, located in the frontal lobe of the brain, is linked to speech production, and recent studies have shown that it also plays a significant role in language comprehension.
  • The primary auditory cortex, located in the temporal lobe and connected to the auditory system, is organized so that it responds to neighboring frequencies in the other cells of the cortex.
  • The angular gyrus, located in the parietal lobe of the brain, is responsible for several language processes, including number processing, spatial recognition and attention.

• Parts of the Cerebellum

  • Based on surface appearance, three lobes can be distinguished in the cerebellum: the flocculonodular lobe, anterior lobe (above the primary fissure), and the posterior lobe (below the primary fissure).
  • Excluding the flocculonodular lobe, which has distinct connections and functions, the cerebellum can be parsed functionally into a medial sector called the spinocerebellum and a larger lateral sector called the cerebrocerebellum.
  • The smallest region, the flocculonodular lobe, is often called the vestibulocerebellum.
  • The medial zone of the anterior and posterior lobes constitutes the spinocerebellum, also known as the paleocerebellum.
  • It receives input exclusively from the cerebral cortex (especially the parietal lobe) via the pontine nuclei (forming corticopontocerebellar pathways), and sends output mainly to the ventrolateral thalamus (in turn connected to motor areas of the premotor cortex and primary motor area of the cerebral cortex) and to the red nucleus.

• The Brain

  • Anatomists conventionally divide each hemisphere into four lobes: the frontal (control of specialized motor control, learning, planning, and speech), parietal (control of somatic sensory functions), occipital (control of vision), and temporal lobes (control of hearing and some speech).
  • The division into lobes does not actually arise from the structure of the cortex itself.
  • The borders between lobes are placed beneath the sutures that link the skull bones together.
  • The only exception is the border between the frontal and parietal lobes, which is shifted backward from the corresponding suture to the central sulcus.
  • Demonstration of brain regions, including the four lobes and internal structures.

• Neural Correlates of Memory Storage

  • Activity in different lobes of the cerebral cortex have been linked to the formation of memories.
  • The temporal and occipital lobes are associated with sensation and are thus involved in sensory memory.
  • Short-term memory is supported by brief patterns of neural communication that are dependent on regions of the prefrontal cortex, frontal lobe, and parietal lobe.
  • The processes of consolidating and storing long-term memories have been particularly associated with the prefrontal cortex, cerebrum, frontal lobe, and medial temporal lobe.
  • The temporal lobe is important for sensory memory, while the frontal lobe is associated with both short- and long-term memory.

• Cranial Bones

  • The temporal bones are situated at the base and sides of the skull, lateral to the temporal lobes of the brain.
  • The squamosal suture separates the parietal bone and squama portion of temporal bone.
  • The two large parietal bones are connected and make up part of the roof and sides of the human skull.
  • Finally, the squamosal suture separates the parietal and temporal bones.
  • The greater wings form the floor of the middle cranial fossa that houses the frontal lobes and pituitary gland, and also the posterior wall of the orbit.