BIOLOGY 173 Lecture Notes - Lecture 29: Precentral Gyrus, Postcentral Gyrus, Occipital Lobe
15 Nov 2016
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Document Summary
Shallow groove sulcus (singular), sulci (plural) Upfolds (smooth) gyrus (singular), gyri (plural: precentral sulcus, precentral gyrus, central sulcus, postcentral gyrus, postcentral sulcus, lateral sulcus, parieto occipital sulcus. Insula or island of reli: this cannot be seen externally, deep to lateral sulcus. Functional areas: motor areas control movement, sensory areas interpret incoming signals, association areas interpret and integrate info. Primary motor area: precentral gyrus, controls movement of specific muscles, each region of gyrus corresponds to a body region. Premotor area / somato motor: learned motor activities. Broca"s (cid:373)otor speech area: movements for speech (tongue, lips, jaw, left side only. Primary sensory area: postcentral gyrus, receives signals: touch, pain, temperature, pressure, vibration, localized to specific body regions. Gustatory area: taste (insula and frontal) Prefrontal cortex: abstract intellectual processes, predict consequences, goal oriented behavior, frustration and anxiety, antisocial behavior. Tract bundle of axons inside cns myelinated axons. Nerve bundle of axons outside cns: association tracks.
