Test 2 - Lecture 7 (Chemoreception Transmission) Flashcards Preview

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Flashcards in Test 2 - Lecture 7 (Chemoreception Transmission) Deck (9)
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1

pathway of taste

- 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

axons from olfactory sensory neurons synapse upon dendrites of olfactory bulb neurons within distinct bundles of neuropil called

glomeruli

3

mitral and tufted cells

relay neurons that project axons towards the olfactory cortex

4

periglomerular cells

inhibitory interneurons that encircle the glomerulus

5

granule cells

make excitatory and inhibitory synapses with dendrites of the mitral and tufted cells

6

combination of glomeruli

allows a "smell" to consist of a mixture of odorants

7

conscious pathway

conscious perception of smell
- olfactory bulb
- olfactory tubercle
- MDN of thalamus
- orbitofrontal complex

8

limbic system pathway

mediates affective (emotional) and mneumonic (memory) aspects of smell
- olfactory bulb
- piriform complex
- amygdala and entorhinal complex
- hypothalamus and brain and hippocampus

9

bilateral pathway

connecting information from both olfactory bulbs
- olfactory bulb
- ipsilateral anterior olfactory nucleus
- contralateral olfactory nucleus