ANAT 321 Lecture Notes - Lecture 9: Mammillothalamic Fasciculus, Cingulate Cortex, David Ragsdale
10 Oct 2018
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Document Summary
The thalamus is the gateway to the cerebral cortex. Organized as numerous distinct nuclei with 3 distinct functions: Relay information specific and direct ways to primary sensory areas. Mammillothalamic tract (hypothalamus, aka mating behaviour and homeostasis), hippocampus. Basal ganglia and cerebellum motor areas of cortex. Medial lemniscus, spinothalamic tract; somatic sensation from the body. Medial lemniscus, spinothalamic tract (by way of trigeminal nerve); somatic sensation from head. The association nuclei are interconnected with vast regions of association cortex. In rats, dogs, cats, etc. association cortices are not as large as in humans. We think it"s due to humans" ability for higher order cognition. Association cortices work together to give rise to higher-order processing. Pulvinar input from visual processes, important in humans. Prefrontal cortex (decision, planning, very large in humans) Receive input from and project to diverse structures such as: They are nuclei which are located in the internal medullary lamina.
