Cerebrum Flashcards
6 Cortical Regions
Olfactory Somesthetic (Parietal Lobe) Visual (Occipital Lobe) Auditory (Temporal Lobe) Motor (Frontal Lobe) Limbic
Olfactory Region
Anatomy: Olfactory bulbs, tract, and piriform lobes + CN I
Only sensory info not processed through thalamus
Connections to amygdala & hippocampus
Frontal Lobe
Anatomy: Motor cortex association and primary motor cortex
Somatotopic
Parietal Lobe
Contralateral sensory information
Includes: Conscious proprioception and nociception
Somatotopic
Temporal Lobe
Auditory cortex: Recieves fibers from medial geniculate nucleus
Occipital Lobe
Visual Cortex: Recieves fibers from lateral geniculate nucleus
Limbic System
Consists of Hippocampus, amygdala, cingulate gyrus, mamillary bodies, septa nuclei and maybe hypothalamus
Rhinencephalon
Olfactory portion of brain + amygdala, septum, and hippocampus
Amygdala receives afferents from
Cerebral cortex, piriform lobe, and thalamus
Septum afferents and efferents
Recieves afferents from olfactory bulb and amygdala
Mediates hippocampus efferents to hypothalamus
Hippocampus afferents and efferents
Recieves afferents from neocortex, amygdala, and contralateral hippocampus Projects efferents (via fornix) to hypothalamus and cingulate cortex
Caudate Nucleus afferents and function
Recieves from prefrontal and premotor cortex
Active during complex movement selection and learining
Putamen afferents and function
Recieves from sensory and motor areas of neocortex
Active during simple movements
Globus Pallidus function
Facilitates movement through inhibition of inhibitory nuclei
Tonically active
Claustrum function
Broad connections with cortex including visual system, specific function unknown
