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Occipital and side impact causes more damage to the olfactory system than frontal impact. [39] However, recent evidence from individuals with traumatic brain injury suggests that smell loss can occur with changes in brain function outside of olfactory cortex. [40]
The part of the olfactory cortex that is on the temporal lobe covers the area of the uncus, which leads into the two significant clinical aspects: herniations and seizures Herniations of the brain can occur if increased intracranial pressure due to a tumor , hemorrhage , or edema pushes the uncus over the tentorial notch against the brainstem ...
The primary olfactory cortex is in the inferior part of the temporal lobe of the brain. [1] It involves the anterior olfactory nucleus, [2] the piriform cortex, [2] the olfactory tubercle, [2] part of the amygdala, [2] part of the entorhinal cortex, [2] [3] and the periamygdaloid cortex. [2] [4] Some sources state that it also includes the ...
The olfactory sensory system is unique since the neurons in the olfactory bulb send their axons directly to the olfactory cortex, rather than to the thalamus first. Olfaction is also the only sense that is represented by the ipsilateral side of the brain. Damage to the olfactory bulb results in a loss of olfaction (the sense of smell).
Piriform cortex from a 14-day-old D2-eGFP (green) mouse stained for enkephalin (red) and DAPI (blue) to show nuclei. Epifluorescence.. Sometimes called the olfactory cortex, olfactory lobe or paleopallium, piriform cortical regions are present in the brains of amphibians, reptiles and mammals.
Alcohol-related brain damage [1] [2] alters both the structure and function of the brain as a result of the direct neurotoxic effects of alcohol intoxication or acute alcohol withdrawal. Increased alcohol intake is associated with damage to brain regions including the frontal lobe , [ 3 ] limbic system , and cerebellum , [ 4 ] with widespread ...
The gustatory cortex consists of two primary structures: the anterior insula, located on the insular lobe, and the frontal operculum, located on the frontal lobe. Similarly to the olfactory cortex, the gustatory pathway operates through both peripheral and central mechanisms.
The effects of brain injury on odor ... The amygdala is a complex set of nuclei situated in the anterior temporal lobe and lies beneath the primary olfactory cortex ...