What is laminar position?
Laminar positioning of cortical neurons, as determined by termination of neuronal migration, is a key determinant of their ability to assemble into functional circuits. However, the exact contribution of laminar placement to dendrite morphogenesis and synapse formation remains unclear.
What are cortical layers?
There are six layers of cerebral cortex: Molecular (plexiform) layer. External granular layer. External pyramidal layer. Internal granular layer.
Why is cortical organization important?
The system-like organization of the cortex provides for stability to changes in lower-level modules and the emergence of properties. The behavior of individual elements therefore seems, in some ways, disconnected from the global behavior of the system.
What is cortical lamina?
any of the layers of cells in the cerebral cortex.
Where does the word laminar come from?
laminar (adj.) “made or arranged in layers,” 1811, from Latin lamina “thin plate, slice, layer” (see laminate (v.)) + -ar.
What are Brodmann’s area?
The Brodmann areas are a way of mapping the cortex and its distinguished functions, pioneered by Korbinian Brodmann, from which the areas are named. Through using Brodmann’s areas, the cortex of the brain can be divided into 52 areas which are numbered sequentially.
What is the difference between primary cortex and association cortex?
Specific parts of the cortex is specialized for specific functions. Primary = direct processing of primary sensory or motor info. Performs the actual task of the region. Secondary/Association = plans & integrates info for the primary area.
What is laminar infarct?
Cortical laminar necrosis, also known as pseudolaminar necrosis, is necrosis of neurons in the cortex of the brain in situations when the supply of oxygen and glucose is inadequate to meet regional demands. This is often encountered in cardiac arrest, global hypoxia and hypoglycemia.
What is laminar object?
Laminar definition Of fluid motion, smooth and regular, flowing as though in different layers. adjective. 1. In, or consisting of, thin plates or layers. (electronics) In the form of thin flat electronic circuits, usually flexible.
What does laminar mean in physics?
laminar flow, type of fluid (gas or liquid) flow in which the fluid travels smoothly or in regular paths, in contrast to turbulent flow, in which the fluid undergoes irregular fluctuations and mixing.
What is the largest part of brain?
the cerebrum
The largest part of the brain, the cerebrum initiates and coordinates movement and regulates temperature. Other areas of the cerebrum enable speech, judgment, thinking and reasoning, problem-solving, emotions and learning.
Is Broca’s area an association area?
Broca’s area is the association area of the primary motor cortex for speech.
What is cerebral laminar necrosis?
Cortical pseudolaminar necrosis, also known as cortical laminar necrosis and simply laminar necrosis, is the (uncontrolled) death of cells in the (cerebral) cortex of the brain in a band-like pattern, with a relative preservation of cells immediately adjacent to the meninges.
What does laminar mean?
What does laminar mean?: arranged in, consisting of, or resembling laminae. What is considered laminar flow? Laminar flow or streamline flow in pipes (or tubes) occurs when a fluid flows in parallel layers, with no disruption between the layers.
What is laminar vs turbulent flow?
Laminar vs. turbulent flow can characterize how fluid is moving, with a laminar flow being a more smooth, orderly flow, and a turbulent flow being rough and chaotic. Laminar flow has a constant velocity at any point within the fluid, imagine similar to a constant flow of traffic. Turbulent flow is chaotic, forms eddies and whirlpools and is similar to the flow of a whitewater rapid.
What does lamina mean in medical dictionary?
What does lamina mean in medical dictionary? [ lam´ĭ-nah] (L.) 1. a thin, flat plate or stratum of a composite structure; called also layer. 2. vertebral lamina. basal lamina (lamina basa´lis) the layer of the basement membrane lying next to the basal surface of the adjoining cell layer composed of an electron-dense lamina densa and an
What do you mean by laminar and turbulent flow?
Calculating The Flow Of A Fluid – Reynolds Number. What determines if the flow of a fluid is classified as laminar or turbulent is the flow’s Reynolds Number.