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Cortical is a word referring to the cortex, so the subcortical region of the brain is literally 'anything beneath the cortex'; but, since the brain isn't arranged in flat layers, it may be easier to visualise this analogy: If you picture the brain as being half an orange, the outer skin (the zest) would equate to the grey matter of cerebral cortex, & the inner skin (the pith) to the white matter; everything else (the pulp & the pips of the orange) represents the subcortical structures, which include various ventricles & nuclei, the thalamus, hypothalamus, cerebellum, & the parts that make up the brainstem. Subcortical pathways enable fast, unconscious reactions; so a reflex is a subcortical action.
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The part of the newborn brain that is the least develped?
The prefrontal cortex, responsible for complex decision-making and impulse control, is the least developed part of the newborn brain. This area continues to mature throughout childhood and adolescence.
What are the key differences between the dorsal and ventral regions of the spinal cord?
The dorsal region of the spinal cord is responsible for sensory functions, while the ventral region is responsible for motor functions. The dorsal region receives sensory information from the body and sends it to the brain, while the ventral region sends motor commands from the brain to the muscles.
Which portion of the brain controls many of vegetative functions?
The brain stem controls many vegetative functions, such as heart rate, breathing, and swallowing. This region of the brain is responsible for regulating essential bodily processes that are necessary for survival.
What does low density area in subcortical white matter of left posterior parietal lobe mean?
A low density area in the subcortical white matter of the left posterior parietal lobe could indicate a region of decreased cellularity or myelin loss. This may be associated with conditions such as demyelinating diseases, vascular damage, or other pathologies affecting the white matter in that specific brain region. Further investigation with clinical correlation is necessary to determine the underlying cause.
Are stria terminalis considered as projection fibers?
Projection fibers are usually considered as those fibers that connect the cerebral cortex to subcortical structures and vice versa. The stria terminalis connects the amygdala to the hypothalamus - i.e., two subcortical structures. So, on this basis they are not projection fibers. But because they connect subcortical structures they are referred to as 'association fibers'.
What is the meaning of the word subcortical?
Sub- refers to below or under, cortical refers to the superficial (top) layer of a tissue/organ/structure; subcortical means the tissue/organ/structure just under the cortical layer. A common use of this term is "subcortical bone", which refers to the bone marrow.
Are the limbic and subcortical regions of the brain the same?
'Subcortical structures' are areas of the brain below the cortex, which is the outermost layer (i.e., the grey matter). The limbic system is one example of a subcortical structure - although technically it isn't just one structure. The limbic system actually consists of a number of key areas related to sensory integration, learning, memory, emotionality, and decision-making. See: http://en.wikipedia.org/wiki/Limbic_system
The part of the newborn brain that is the least develped?
The prefrontal cortex, responsible for complex decision-making and impulse control, is the least developed part of the newborn brain. This area continues to mature throughout childhood and adolescence.
Can cerebellum come out your nose?
No, your cerebellum is a region of your brain that controls your motor functions.
What is the largest region of the brain?
the largest region of the brain if the pooluntush membrane
Where is the periventricular and subcortical white matter of both cerebral hemispheres?
The periventricular white matter is located around the ventricles of the brain, primarily surrounding the lateral ventricles, while the subcortical white matter is found beneath the cerebral cortex of both cerebral hemispheres. These regions are crucial for communication between different brain areas, facilitating the transmission of signals. The periventricular white matter contains important pathways involved in various functions, whereas the subcortical white matter connects cortical areas with deeper structures and plays a role in motor control and cognitive processing.
Can epileptic seizures be found in the subcortical of the brian?
yes epileptic seizures can be found in the sub-cortical of the Brain's of the type of seizures are all over the brain .
What are the key differences between the dorsal and ventral regions of the spinal cord?
The dorsal region of the spinal cord is responsible for sensory functions, while the ventral region is responsible for motor functions. The dorsal region receives sensory information from the body and sends it to the brain, while the ventral region sends motor commands from the brain to the muscles.
Which portion of the brain controls many of vegetative functions?
The brain stem controls many vegetative functions, such as heart rate, breathing, and swallowing. This region of the brain is responsible for regulating essential bodily processes that are necessary for survival.
WHAT model of dreaming proposes that dreams are side-effects of neural activity in subcortical areas of the brain?
activation-synthesis model
What does low density area in subcortical white matter of left posterior parietal lobe mean?
A low density area in the subcortical white matter of the left posterior parietal lobe could indicate a region of decreased cellularity or myelin loss. This may be associated with conditions such as demyelinating diseases, vascular damage, or other pathologies affecting the white matter in that specific brain region. Further investigation with clinical correlation is necessary to determine the underlying cause.
Function of white matter in the brain?
White matter in the brain consists of nerve fibers (axons) that connect different parts of the brain to each other and to the spinal cord. It acts as a communication network, allowing neurons in different brain regions to send signals and work together to carry out various functions such as motor coordination, sensory processing, and cognitive tasks.
