An eye doctor shines a bright light into a patient's eye. In one to two sentences, explain how the patient's brain perceives the bright light.(2 points)
The bright light stimulates the photoreceptor cells in the patient's retina, which then sends a signal through the optic nerve to the visual cortex in the brain, resulting in the perception of the bright light.
The human body has four types of tissues. What part of the eye uses muscle tissue for opening and closing movements?(1 point
The iris uses muscle tissue for opening and closing movements in the eye.
What is systemic circulation?(1 point)
Systemic circulation is the part of the cardiovascular system that carries oxygenated blood away from the heart and distributes it to the rest of the body, returning deoxygenated blood back to the heart.
The bright light stimulates the photoreceptor cells in the patient's eye, which then send electrical signals to the brain to be interpreted as the perception of brightness. (2 points)
