Basic Anatomyphysiologybrief Biochemistry

Components of the visual system include the optical components of the anterior eye (cornea, aqueous humor, lens, and vitreous body), retina, optic nerves, optic tracts, optic radiations, visual cortex, and a variety of nuclei (see Figure 68.1). The optical components of the eye focus light on the retina, which transduces the light signal into neural signals, and passes these neural signals through the optic nerves and tracts to central structures that perform more elaborate processing, integrating their information with that of the other senses. Any disease that interferes with the function of these components will cause loss of vision and blindness, and each part of the visual system has specific susceptibilities to age-related diseases or damage.

Blood Pressure Health

Blood Pressure Health

Your heart pumps blood throughout your body using a network of tubing called arteries and capillaries which return the blood back to your heart via your veins. Blood pressure is the force of the blood pushing against the walls of your arteries as your heart beats.Learn more...

Get My Free Ebook


Post a comment