Test 2 - Lecture 7 (Chemoreception Transmission) Flashcards
1
Q
pathway of taste
A
- afferent fibers synapse at the nucleus of the solitary tract (NTS)
- information relayed to thalamus (VPM)
- thalamus to primary gustatory cortex (ant. insula and frontal operculum)
2
Q
axons from olfactory sensory neurons synapse upon dendrites of olfactory bulb neurons within distinct bundles of neuropil called
A
glomeruli
3
Q
mitral and tufted cells
A
relay neurons that project axons towards the olfactory cortex
4
Q
periglomerular cells
A
inhibitory interneurons that encircle the glomerulus
5
Q
granule cells
A
make excitatory and inhibitory synapses with dendrites of the mitral and tufted cells
6
Q
combination of glomeruli
A
allows a “smell” to consist of a mixture of odorants
7
Q
conscious pathway
A
conscious perception of smell
- olfactory bulb
- olfactory tubercle
- MDN of thalamus
- orbitofrontal complex
8
Q
limbic system pathway
A
mediates affective (emotional) and mneumonic (memory) aspects of smell
- olfactory bulb
- piriform complex
- amygdala and entorhinal complex
- hypothalamus and brain and hippocampus
9
Q
bilateral pathway
A
connecting information from both olfactory bulbs
- olfactory bulb
- ipsilateral anterior olfactory nucleus
- contralateral olfactory nucleus
