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Lesions of the medial dorsal and anterior nuclei of the thalami and lesions of the mammillary bodies are commonly involved in amnesic syndromes in humans. [8] Mammillary body atrophy is present in several other conditions, such as colloid cysts in the third ventricle, Alzheimer's disease, schizophrenia, heart failure, and sleep apnea. In spite ...
Its various components support a variety of functions including emotion, behavior, long-term memory, and olfaction. [2] The limbic system is involved in lower order emotional processing of input from sensory systems and consists of the amygdala, mammillary bodies, stria medullaris, central gray and dorsal and ventral nuclei of Gudden. [3]
The mammillary bodies are two clusters of cell bodies found at the ends of the posterior fibres of the fornix within the diencephalon. The mammillary bodies relay information from the hippocampal formation (via the fornix) to the thalamus (via the mammillothalamic tract). The mammillary bodies are integral parts of the limbic system and have ...
The mammillary bodies directly or indirectly connect to the amygdala, hippocampus, and thalami as major structures in the limbic system. [6] The mammillothalamic tract carries signals from the mammillary bodies via the anterior thalamus to support spatial memory .
Due to the location of the structures in the circuit, the resulting shape is a limbus. This is what drove MacLean to call the circuit the limbic system when he later modified the circuit. Various studies indicate that the Papez circuit is greatly influenced by the cerebellum and that perhaps the hippocampus is not the starting point of the circuit.
The bundles of fibers come together in the midline of the brain, forming the body of the fornix. The lower edge of the septum pellucidum (the membrane that separates the lateral ventricles) is attached to the upper face of the fornix body. The body of the fornix travels anteriorly and divides again near the anterior commissure. The left and ...
The clitoris is the only organ in the human body that exists exclusively for pleasure. Those in the medical community had no reason to assume they were wrong. The anatomical “maps” that anchored their education must have seemed as sturdy and steadfast as Mercator’s, with every organ plotted and every muscle annotated.
Mammillary nuclei (part of mammillary bodies) Posterior nucleus; Lateral area Posterior part of Lateral nucleus; Surface Median eminence; Mammillary bodies; Pituitary stalk (infundibulum) Optic chiasm; Subfornical organ; Periventricular nucleus; Tuber cinereum. Tuberal nucleus; Tuberomammillary nucleus; Tuberal region; Mammillary nucleus