BSCI 201 Lecture Notes - Lecture 19: Primary Olfactory Cortex, White Matter, Central Sulcus

• School: University of Maryland
• Department: Biological Sciences Program
• Course: BSCI 201
• Professor: Lombardi

Document Summary

Brain: 3-4 week embryo, 3 distinct regions forebrain, midbrain, hindbrain, 5-week embryo, more specific regions. Islands of nuclei (clusters of neuron cell bodies) within the cerebral white matter: five lobes, frontal, parietal, temporal, occipital, insula, diencephalon. Nervous system 4: deep in the middle of the brain, 3 paired structures, thalamus, 80% of diencephalon, gateway for cerebral cortex, sorts, edits and relays inputs, hypothalamus. Inferior region of brain stem: continuous with spinal cord. Input from cortex, brain stem and sensory receptors: muscle memory. Islands of gray matter in the cerebral white matter: three major regions, associated with nuclei in the brain stem. Parki(cid:374)so(cid:374)"s disease: motor disorder characterized by difficulty initiating movements, slow movement, rigidity, balance, caused by the deterioration of a portion of the substantia nigra in the midbrain. Hu(cid:374)ti(cid:374)gto(cid:374)"s disease: genetic disorder of basal nuclei, pathway from thalamus to basal nuclei is lost, build up of a proterin alters how cholesterol is processed, loss of motor coordination, etc.