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What is the gray matter on the surface of the brain called?
Grey matter is distributed at the surface of the cerebral hemispheres (cerebral cortex) and of the cerebellum (cerebellar cortex), as well as in the depths of the cerebrum (thalamus; hypothalamus; subthalamus, basal ganglia - putamen, globus pallidus, nucleus accumbens; septal nuclei), cerebellar (deep cerebellar nuclei - dentate nucleus, globose nucleus, emboliform nucleus, fastigial nucleus), brainstem (substantia nigra, red nucleus, olivary nuclei, cranial nerve nuclei) and spinal grey matter (anterior horn, lateral horn, posterior horn).
Where in the central nervous system is white matter?
White matter forms the bulk of the deep parts of the brain and the superficial parts of the spinal cord. Aggregates of gray matter such as the basal ganglia (caudate nucleus, putamen,globus pallidus, subthalamic nucleus, nucleus accumbens) and brain stem nuclei (red nucleus, substantia nigra, cranial nerve nuclei) are spread within the cerebral white matter. The cerebellum is structured in a similar manner as the cerebrum, with a superficial mantle of cerebellar cortex, deep cerebellar white matter (called the "arbor vitae") and aggregates of grey matter surrounded by deep cerebellar white matter (dentate nucleus, globose nucleus, emboliform nucleus, and fastigial nucleus). The fluid-filled cerebral ventricles (lateral ventricles,third ventricle, cerebral aqueduct, fourth ventricle) are also located deep within the cerebral white matter. Source: Link below. I didn't think of this. All the credit belongs to this website! Not me!
Connects cerebellar hemispheres at midline?
It is the cerebellar vermis.
What are the tracts and decussation that can be found in tegmentum of the midbrain?
the four lemnisci = medial, spinal, lateral and trigeminalsuperior cerebellar pedunclesdecussation of superior cerebellar penduclestectospinal tractrubrospinal tractcentral tegmental tractdorsal longitudinal fasciculusmedial longitudinal bundle
Which cerebellar peduncle is the thickest?
The middle cerebellar peduncle is the thickest of the three cerebellar peduncles. It is the largest and most prominent of the three, connecting the cerebellum to the brainstem and allowing for communication between the cerebellum and other parts of the brain.
What are the only neurons of cerebellar cortex that send their axons outside of cerebellar cortex?
purkinje cells
Which one of the cerebellar peduncles that contains afferent fibers only?
It's the middle cerebellar peduncle.As for superior cerebellar and inferior cerebellar peduncles, they are both contain afferent and efferent fibres.
Which 4 kingdoms have nuclei?
The four eukaryotic kingdoms that have nuclei are Animalia, Plantae, Fungi, and Protista. Nuclei are membrane-bound organelles that house the genetic material and control the activities of the cell.
Which cerebellar peduncle is the smallest?
Superior cerebellar peduncle (it's also the most medial of the 3 peduncles)
What is the white matter of the cerebellum form a branching array called?
The white matter of the cerebellum forms a branching array known as the "arbor vitae." This structure resembles a tree and consists of myelinated axons that connect different parts of the cerebellum and facilitate communication between the cerebellar cortex and deeper cerebellar nuclei. The arbor vitae plays a crucial role in coordinating motor control and balance.
What is the nuclei deep within the cerebral hemisphere white matter are collectively?
basal ganglia
What is the cell cycle called when the nucleus divides into two identical nuclei?
It is called mitosis. In meiosis four different nuclei are produced
