The head tremor in Parkinson’s disease has an altered function
in motor control. Moreover, under normal conditions, dopamine
regulates voluntary movements. Additionally, it allows smooth
and coordinated execution.
A healthy eye lens and another affected by cataracts. In a healthy
eye, the lens is clear, allowing light to pass to the retina without
obstruction. In contrast, a lens with cataracts looks cloudy, making
vision difficult and causing blur.
The healthy brain vs Alzheimer’s brain has an altered function
in the nervous system. Moreover, under normal conditions, neurons
maintain efficient communication. Additionally, they support learning
and memory.
Huntington’s disease has an altered function in the nervous system.
Moreover, under normal conditions, neurons maintain efficient
communication. Additionally, they support motor control and cognitive
functions.
Huntington’s disease and chromosome 4 have an altered function
in neuronal genetic regulation. Moreover, under normal conditions,
the huntingtin gene produces a functional protein. Additionally, this
protein participates in cellular processes.
The idiopathic scoliosis has an altered function in body
alignment. Moreover, under normal conditions, the spine
maintains proper physiological curvature. Additionally, it
provides stability and postural balance.
Intraocular lens. This artificial lens is implanted in the eye after the
removal of the natural lens during cataract surgery. The intraocular
lens replaces the cloudy lens, allowing light to focus correctly on the
retina and restoring vision.
The legs in Parkinson’s disease have an altered function in mobility.
Moreover, under normal conditions, dopamine regulates voluntary
movements. Additionally, it allows smooth and coordinated execution.
Lens extraction in cataracts is a surgical procedure used
in advanced cases. This representation shows the cornea,
lens, aqueous humor, retina, and optic nerve.
The lens replacement in cataract surgery illustrates the final stage,
where the cloudy lens is replaced with an artificial intraocular lens.
After removing the lens using phacoemulsification, the new lens is
implanted through a small incision in the cornea.
The lost memories in Alzheimer’s disease have an altered function in
cognitive processes. Moreover, under normal conditions, neurons
communicate efficiently. Additionally, they store and retrieve information.
Macular Degeneration (AMD) illustrates how the condition affects
the macula, the central part of the retina responsible for detailed
vision. Aging can damage the cells of the macula, leading to blurred
vision or loss of central vision.