INTERNAL CAPSULES Meaning and
Definition
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Internal capsules refer to a pair of large bundles of white matter fibers in the brain that convey information between the cerebral cortex and other parts of the central nervous system. These capsules are located deep within the brain and play a crucial role in facilitating motor and sensory signals to and from the cortex.
The internal capsules are composed of both ascending and descending fibers, connecting the cerebral cortex to various subcortical structures such as the thalamus, brainstem, and spinal cord. They serve as a major pathway for the transmission of motor commands from the brain to the rest of the body, as well as for relaying sensory information from the body to the brain.
The capsules are named based on their location within the brain, with the anterior limb positioned in front, the genu (or knee) in the middle, and the posterior limb at the back. These structures are bilateral, meaning they are present on both the left and right sides of the brain.
Damage or lesions to the internal capsules can have significant neurological consequences, as they can disrupt the transmission of signals to and from the cortex. This can lead to motor deficits, such as weakness or paralysis, as well as sensory impairments. Given their critical role in neural communication, the internal capsules are an essential component of the brain's intricate wiring system.
Common Misspellings for INTERNAL CAPSULES
- unternal capsules
- jnternal capsules
- knternal capsules
- onternal capsules
- 9nternal capsules
- 8nternal capsules
- ibternal capsules
- imternal capsules
- ijternal capsules
- ihternal capsules
- inrernal capsules
- infernal capsules
- ingernal capsules
- inyernal capsules
- in6ernal capsules
- in5ernal capsules
- intwrnal capsules
- intsrnal capsules
- intdrnal capsules
- intrrnal capsules
Etymology of INTERNAL CAPSULES
The word "internal capsules" comes from the combination of two terms: "internal" and "capsules".
1. Internal: The term "internal" comes from the Latin word "internus", which means "within" or "on the inside". It is derived from the prefix "inter", meaning "between" or "among", combined with the suffix "-nus", indicating belonging or connection. "Internal" is commonly used to describe something situated on the inside or within something else.
2. Capsules: The term "capsules" is derived from the Latin word "capsula", which translates to "small container" or "box". It is a diminutive form of the Latin noun "capsum" or "capsa", meaning "box". In English, "capsule" refers to a small container enclosing something, often used in medical or pharmaceutical contexts.
