Lecture 8 vocab Flashcards
How does the overview of the visual system go?
From the sensory stimulus(light) to the sensory transduction in the periphery(eye) and then to the pathway for perception(to and through the brain)
Only what wavelength of 400-700nm is visible to the human eye?
Only electromagnetic radiation
Within the visible spectrum, different wavelengths are perceived as what?
Different colors
What are optics?
Reflection and absorption determined what light enters the eye
How does optics work?
The eye forms images by refracting(bending) light
What consists of the anatomy of the human eye?
The pupil, sclera, iris, and the cornea
What happens in the retina?
Light is transduced(detected)
What happens in the cornea and lens?
Its important for focus; uses refraction to bend light
What happens in the optic nerve?
Axons that carry visual to rest of the brain
What consists of the inner surface of the eye?
Optic disk(blind spot), Blood vessels, fovea, nasal retina, and temporal retina
How does the eye form an image?
Light is refracted(bent) by the cornea to focus the image, while the lens makes minor adjustments
On near or far objects is more refraction needed?
Near objects
What happens to the tension on lens from ciliary muscles to produce more accommodations?
The tension on lens from ciliary muscles relax
What do far away objects require less of?
Refraction
To see far away objects, what happens to tension on lens?
It increases(flattening lens)
