https://padlet.com/abonsamanthakaeth/pxxm4iev6pk78kba According to NIH (2014), humans are capable of detecting almost 10,000 scents with their noses. Our nose is considered to be powerful since it can detect many smells. We are able to do this due to the function of the olfactory system in our bodies. The word “olfactory” is derived from a Latin word facere meaning “ to do” while olere meaning “ to smell”. In short, olfaction has something to do with the sense of smell which results from sensing or detecting the odor molecules coming from the environment. en-us 2021-09-07 14:53:35 UTC 2025-04-15 05:19:13 UTC hello@padlet.com abonsamanthakaeth https://padlet.com/abonsamanthakaeth/pxxm4iev6pk78kba/wish/1722118958 The sense of smell starts when Jungwon sniffs the odor molecules floating in the air, filling his nostrils. The molecules will then travel to the nasal cavity which functions to filter and warm the air, keeping it moist. Odor molecules will then bind to the cilia which depolarize the olfactory receptor.]]> 2021-09-07 14:53:35 UTC https://padlet.com/abonsamanthakaeth/pxxm4iev6pk78kba/wish/1722118958 abonsamanthakaeth https://padlet.com/abonsamanthakaeth/pxxm4iev6pk78kba/wish/1722118962 The olfactory receptor initiates the action potentials down to the axon of the receptor cell into the olfactory bulb (the axons that travel from the epithelium to the bulb forms the first cranial nerve). The olfactory epithelium has a layer of olfactory receptor cells that are called specialized neurons that can detect smells. ]]> 2021-09-07 14:53:35 UTC https://padlet.com/abonsamanthakaeth/pxxm4iev6pk78kba/wish/1722118962 abonsamanthakaeth https://padlet.com/abonsamanthakaeth/pxxm4iev6pk78kba/wish/1722118963 The axons of the receptor cells connect on the dendrites of the olfactory bulb called glomeruli which is considered to be critical for odorant signal transduction.]]> 2021-09-07 14:53:35 UTC https://padlet.com/abonsamanthakaeth/pxxm4iev6pk78kba/wish/1722118963 abonsamanthakaeth https://padlet.com/abonsamanthakaeth/pxxm4iev6pk78kba/wish/1722118965 From there, the receptor cells form a synapse with the olfactory bulb neurons alongside mitral cells and relay neurons. Once triggered, these cells stick out into the olfactory tract all over the brain which will carry the information to the olfactory cortex passing through the amygdala and thalamus.]]> 2021-09-07 14:53:35 UTC https://padlet.com/abonsamanthakaeth/pxxm4iev6pk78kba/wish/1722118965 abonsamanthakaeth https://padlet.com/abonsamanthakaeth/pxxm4iev6pk78kba/wish/1722118966 The cortex has cortical areas that receive information from the olfactory bulb including the piriform cortex, periamygdaloid cortex, entorhinal cortex, olfactory tubercle, and anterior olfactory nucleus.

]]> 2021-09-07 14:53:35 UTC https://padlet.com/abonsamanthakaeth/pxxm4iev6pk78kba/wish/1722118966 abonsamanthakaeth https://padlet.com/abonsamanthakaeth/pxxm4iev6pk78kba/wish/1722118967 The piriform cortex, periamygdaloid cortex, and anterior olfactory nucleus transmits and sends signals to the thalamus (olfactory stimuli action)  and frontal cortex (conscious olfactory experience). The entorhinal cortex sends signals to the hippocampus (odor threshold and reception of odor) and the olfactory tubercle acts as a rewarding stimulus.

As Jungwon continuously smells, his nose and brain activate and work together to detect and identify the tiny odor molecules floating in the air. The signals sent to his brain made him recognize and interpret the smell of his favorite food. ]]> 2021-09-07 14:53:35 UTC https://padlet.com/abonsamanthakaeth/pxxm4iev6pk78kba/wish/1722118967 abonsamanthakaeth https://padlet.com/abonsamanthakaeth/pxxm4iev6pk78kba/wish/1722118968 Jungwon was suddenly awake from his deep slumber when his stomach grumbled. As he stood up from his bed, a familiar smell filled his nose making him more hungry. He started to figure out that very well-known smell. So he decided to follow the smell which was then directed to the kitchen. From there, he saw his mother cooking his favorite dish called “Adobo”. 

]]> 2021-09-07 14:53:35 UTC https://padlet.com/abonsamanthakaeth/pxxm4iev6pk78kba/wish/1722118968 abonsamanthakaeth https://padlet.com/abonsamanthakaeth/pxxm4iev6pk78kba/wish/1722118969 2021-09-07 14:53:35 UTC https://padlet.com/abonsamanthakaeth/pxxm4iev6pk78kba/wish/1722118969 abonsamanthakaeth https://padlet.com/abonsamanthakaeth/pxxm4iev6pk78kba/wish/1722118971 2021-09-07 14:53:35 UTC https://padlet.com/abonsamanthakaeth/pxxm4iev6pk78kba/wish/1722118971