In scans taken between the appearance of the cerebellum and the disappearance of the olfactory bulbs, brain volumes were extracted by manually outlining regions of interest and multiplying by slice thickness (0.5 mm).
Signals from the olfactory bulb head to several other brain areas, including the amygdala, which triggers innate reactions to certain smells.
But when it comes to pattern recognition, perception and other seemingly simple tasks, their computing powers pale in comparison to a three-pound computer that fills less space than a two-liter bottle and uses less power than a light bulb: your brain.
Inspection of anatomical specimens reveals that the accessory olfactory bulb, the brain region to which VNO neurons project, is absent in Old World monkeys and apes and the VNO in these species, if present, contains only non-sensory cells [3], [7].
The olfactory bulb and brain lengths, used to establish the olfactory bulb/brain ratio, were measured as depicted in Figure 3a.
As the animals aged, (≥8 9 months), large and medium-sized parenchymal and penetrating vessels of the cerebrum (neocortex, hippocampus, thalamus and olfactory bulb), the brain stem and the spinal cord also showed amyloid angiopathy.
Briefly, forebrain was prepared by removing olfactory bulb, cerebellum and brain stem; one-half of a brain was used for the preparation of chromatin.
In brief, after removing the cerebellum and olfactory bulbs the brains were pooled (n = 3 at P5 and n = 2 at P10) and dissociated using the Neural Tissue Dissociation Kit containing papain.
Take a look at a sample of such analogies -- from burning homes to fixing prize fights -- and tell us which ones light a bulb in your brain and which ones still have you scratching your head.
The olfactory nerve begins in the nasal cavity and ends in the olfactory bulb, in the brain.
Information about the molecules is then transmitted from the receptors to the olfactory bulb in the brain.
