Olfaction Flashcards
What is the olfactory brain?
Rhinencephalon
How may olfactory cells do dogs have?
~220 million
What is it called when air passes through heat exchanger?
Breathing
What is it called when air passes above the heat exchanger reaching the olfactory epithelium?
Sniffing
What cells are primary receptor cells with a dendrite extending towards the surface of the epithelium?
Olfactory cells
What type of layer keeps the epithelium moist and clean?
Mucus
What do the membrane of the cilia contain?
Odor receptors
What is the result of several axons of olfactory cells synapse with a mitral cell in the glomerulus?
Signal amplification
What are odor molecules dissolved in?
Gas or water
What family do odorant receptors belong to?
GPCR
A single odor molecule can open several ________ ion channels
Thousand
What cortex do the following make up:
Anterior olfactory nucleus
Piriform cortex
Amygdala
Entorhinal cortex
Olfactory cortex
Anterior olfactory nucleus + piriform cortex + amygdala —> thalamus which results in what?
Olfactory stimuli action
Entorhinal cortex —> hippocampus, results in what?
Odor threshold
Reception of odor
What is the paired, cylindrical organ located ventrally and medially in the anterior portion of the nasal septum?
Vomeronasal organ
