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A sub-cortical injury refers to damage occurring beneath the cerebral cortex of the brain, often affecting areas such as the white matter, basal ganglia, or other sub-cortical structures. This type of injury can result from trauma, such as a concussion or contusion, or from medical conditions like stroke or multiple sclerosis. Symptoms may vary widely, depending on the specific areas affected, and can include cognitive deficits, motor impairments, and emotional disturbances. Diagnosis typically involves imaging techniques like MRI or CT scans to assess the extent of the damage.
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What is subcortical of the shoulder?
The term "subcortical of the shoulder" typically refers to structures located beneath the cortex of the shoulder bones, particularly the humerus and scapula. It can involve the bone marrow or subcortical regions that may be relevant in various medical conditions, such as fractures or bone marrow lesions. Understanding these subcortical areas is important for diagnosing shoulder injuries and assessing bone health.
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
What does hyperintense signals in the bifrontal subcortical white matter mean?
Hyperintense signals in the bifrontal subcortical white matter on MRI can indicate various conditions such as small vessel ischemic disease, demyelination, or inflammation. Further evaluation and clinical correlation are necessary to determine the underlying cause.
What is rapid subcortical pathway activity?
Rapid subcortical pathway activity refers to the quick processing of sensory information through subcortical structures in the brain, such as the thalamus and amygdala, before it reaches the cortex. This pathway allows for fast, automatic responses to stimuli, often linked to emotional and survival-related reactions. For example, it enables immediate reactions to threats, bypassing slower cortical processing. This mechanism highlights the brain's ability to prioritize speed in certain contexts, particularly in response to danger.
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.
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.
What is a subcortical cyst?
A subcortical cyst is a type of cyst that develops on the skeletal frame in the body. Depending on the location, they can be benign, but they can also early indicators of some diseases.
Can a head injury cause subcoritcal and periventricular white matter?
Yes, a head injury can lead to damage in subcortical and periventricular white matter. This damage often results from mechanisms such as diffuse axonal injury, where shearing forces disrupt axons in these regions. Such injuries can manifest as changes observable on neuroimaging, potentially leading to cognitive and motor deficits. Prompt medical evaluation and imaging are crucial for assessing the extent of the injury and guiding treatment.
Is vision cortical or subcortical?
Vision involves both cortical and subcortical processes. The initial stages of visual processing occur in subcortical structures such as the thalamus, specifically the lateral geniculate nucleus, before signals are relayed to the primary visual cortex in the occipital lobe. Cortical areas are crucial for higher-level processing, including object recognition and spatial awareness. Thus, vision is a complex interplay of both subcortical and cortical mechanisms.
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
What are the Functions of subcortical region of brain?
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.
What does it mean when they find a Lesion seen within subcortical white matter tracts of the posterior left frontal lobe?
Subcortical white matter lesions may be associated with cardiovascular disease. They may also be associated with multiple sclerosis, if the patient has other MS signs and symptoms.
What does hyperintense signals in the bifrontal subcortical white matter mean?
Hyperintense signals in the bifrontal subcortical white matter on MRI can indicate various conditions such as small vessel ischemic disease, demyelination, or inflammation. Further evaluation and clinical correlation are necessary to determine the underlying cause.
When did Julie Ryles die?
Julie Ryles died in 27 January 2011 of progressive subcortical gliosis.
What is rapid subcortical pathway activity?
Rapid subcortical pathway activity refers to the quick processing of sensory information through subcortical structures in the brain, such as the thalamus and amygdala, before it reaches the cortex. This pathway allows for fast, automatic responses to stimuli, often linked to emotional and survival-related reactions. For example, it enables immediate reactions to threats, bypassing slower cortical processing. This mechanism highlights the brain's ability to prioritize speed in certain contexts, particularly in response to danger.
WHAT model of dreaming proposes that dreams are side-effects of neural activity in subcortical areas of the brain?
activation-synthesis model
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.
