Unformatted text preview: b) This reception results in signal-transduction pathway c) Phospholipase C splits PIP 2 into IP 3 d) IP 3 acts as second messengers and opens another second messenger (calcium ions) from endoplasmic recticulum (ER) e) IP 3 and calcium ions interact with one another and open sodium channels. This results in depolarization and the senses are detected -Smell 1) More than 1000 receptors for smelling 2) Olfactory receptors are located at the upper portion of the nasal cavity 3) Smells are perceived by olfactory bulb in the brain...
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- Fall '11
- Olfaction, G-Protein Coupled Receptors, olfactory bulb, specific chemical receptors