Examlex
What is the total magnification of a light microscope when using a 25X ocular and 40X objective lens?
Vagus Nerve
The tenth cranial nerve that innervates digestive organs, heart and other areas, and is part of the parasympathetic nervous system.
Reflexes
are involuntary and nearly instantaneous movements in response to a stimulus as part of the body's defense mechanism.
Blood-Brain Barrier
Permeability barrier controlling the passage of most large-molecular compounds from the blood to the cerebrospinal fluid and brain tissue; consists of capillary endothelium and may include the astrocytes.
Caffeine
A stimulant found in coffee, tea, chocolate, and certain medications that can enhance alertness and reduce feelings of tiredness.
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