projection fibers
The few islands of gray matter within the interior of the cerebrum are made up of neuron cell bodies and unmyelinated axons. These areas of gray matter act as the central processing unit of the brain. Many things can affect this gray matter, such as, smoking, child abuse, alcoholism, and drugs.
The areas within the cerebrum named for the bones that lie beneath are the frontal, parietal, temporal, and occipital lobes. These lobes are named based on the skull bones that they are situated above.
I'm not an expert, but the major lobes are the Frontal lobe, Parietal lobe, Occipital lobe, and the Temporal Lobes. Other important areas would be the Cerebellum, Wernicke's Area, Broca's Area, Thalamus, Amygdala, Hypothalamus, Hippocampus, the Sensory cortex and the Motor cortex. I think those are the main parts of the brain. There are obviously a lot more areas, but those are the most known areas from what I've read.
The three major areas of the brain are the cerebrum, responsible for higher brain functions such as thinking and voluntary movement; the cerebellum, responsible for coordination and balance; and the brainstem, which controls basic life functions such as breathing and heart rate.
The cerebrum is the upper portion of the brain that is most developed in human beings. Its main job is to process sensory input and provide an appropriate behavioral response that is conducive to survival or reproduction.
association fibres = connect the different cortical areas in the same hemispherecommisural fibres = connect one part of the CNS on one side with the same part on the opposite sideprojection fibres = connect the cerebral cortex with lower centres
The hypothalamus is a small part of the brain located just below the thalamus on both sides of the third ventricle. (The ventricles are areas within the cerebrum that are filled with cerebrospinal fluid, and connect to the fluid in the spine.) It sits just inside the two tracts of the optic nerve, and just above (and intimately connected with) the pituitary gland.
The structures responsible for sending messages from the midbrain to the cerebrum include the thalamus and various ascending pathways. The thalamus acts as a relay station, processing and transmitting sensory information to the appropriate areas of the cerebrum for further interpretation. Additionally, the midbrain contains specific nuclei and tracts, such as the substantia nigra and the medial lemniscus, that facilitate communication between these regions.
Commissural tracts are bundles of nerve fibers that connect corresponding areas of the two cerebral hemispheres. The largest and most prominent commissural tract is the corpus callosum, which enables communication and coordination between the two hemispheres of the brain.
The few islands of gray matter within the interior of the cerebrum are made up of neuron cell bodies and unmyelinated axons. These areas of gray matter act as the central processing unit of the brain. Many things can affect this gray matter, such as, smoking, child abuse, alcoholism, and drugs.
Your memory is controlled by the cerebrum. and the frontal and temporal lobes are the main areas of speech and language.
The differences between cerebrum and cerebellum are: Cerebrum has sensory areas that interpret sensory activities, association areas that are concerned with emotional and intellectual processes like will, judgement, memory etc. It controls all voluntary activities. Cerebellum coordinates muscular activities and maintains body posture and balance.
Primary motor area.
consist of "arcuate fibres" (U-shape bands)connect adjacent gyri with one anotherpresent in all parts of the hemisphere
The areas within the cerebrum named for the bones that lie beneath are the frontal, parietal, temporal, and occipital lobes. These lobes are named based on the skull bones that they are situated above.
The corticospinal tract carries impulses from the cerebrum to lower CNS areas, primarily to control voluntary movements throughout the body. It is involved in motor function and helps in coordinating muscle movements.
The occipital lobe contains the primary visual areas that interpret what a person sees.