PSYB65H3 Lecture Notes - Optic Chiasm, Posterior Cerebral Artery, Color Vision
Document Summary
Lecture 5: sensory and motor systems and disorders (chapter 5,6) Motor system: resides in the frontal cortex. Visual system humans very dependent on this system. Its function dependent upon its anatomy or organization: discretely organized, retina part of your cn system, seeing things and recognizing everything around you. Optic nerve: leaves the retina, two nerves cross, that is known as the optic chiasm (the point where the nerve at the back of each eye come together, and then go away back from each other) Nerve: to the pathway to the finger, the nerves that go to the brain aren"t called nerves anymore, they"re called a. Tract even though they are the same fibres. The whole visual system is a part of the cns. The part of your retina, from the temporal portion (outside portion of the retina), as it continues back, comes to the optic chiasm, and it stays on same side as the brain: does not cross!
