Examlex
Solve the system of equations using substitution.
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Oxygen Level
The concentration of oxygen in a particular environment or medium, typically referring to its amount in the blood.
Internal Carotid Arteries
Major arteries in the head that supply blood to the brain, eyes, and other parts of the head.
Vertebral Arteries
Arteries that supply blood to the upper part of the spinal column, neck, and lower part of the brain.
Blood Pressure
Blood pressure is the force exerted by circulating blood upon the walls of blood vessels, crucial for body function.
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