smell
The sense of smell, or olfaction, is the special sense through which smells (or odors) are perceived. The sense of smell has many functions, including detecting hazards, and pheromones, and plays a role in taste.
It occurs when an odor binds to a receptor within the nasal cavity, transmitting a signal through the olfactory system. Glomeruli aggregate signals from these receptors and transmit them to the olfactory bulb, where the sensory input will start to interact with parts of the brain responsible for smell identification, memory, and emotion.There are many different causes for alteration, lack, or disturbance to a normal sense of smell, and can include damage to the nose or smell receptors, or central problems affecting the brain. Some causes include upper respiratory infections, traumatic brain injury, and neurodegenerative disease.
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It occurs when an odor binds to a receptor within the nasal cavity, transmitting a signal through the olfactory system. Glomeruli aggregate signals from these receptors and transmit them to the olfactory bulb, where the sensory input will start to interact with parts of the brain responsible for smell identification, memory, and emotion.There are many different causes for alteration, lack, or disturbance to a normal sense of smell, and can include damage to the nose or smell receptors, or central problems affecting the brain. Some causes include upper respiratory infections, traumatic brain injury, and neurodegenerative disease.
View More On Wikipedia.org
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Sewage smell every time neighbour flushes Saniflo and pipe hammer
Hi, I'm hoping someone might be able to give me some advice. I'm in a semi detached, and unfortunately our neighbour's pipework all connects to ours. We've been getting a couple of issues with the plumbing ever since he put in a saniflo downstairs 5 years ago (unfortunately he is awful and can't... -
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Is this right? - Washing machine
Hi all, I’m having a problem with my washing machine and any help would greatly be appreciated! I moved into my new build ground floor flat just over a year ago and I’ve always had a problem with my washing machine not working correctly and leaving my clothes with a damp/stagnant water smell... -
Burning Smell and Flames on Electrical Immersion
I have a smell of burning from the immersion on hot water cylinder. The overheat pin had popped out, but when I popped it back in and switched on there were tiny smouldering flames around one of the contacts where the thermostat connects to the immersion. Separately I've replaced the timer as...- MrGatch
- Thread
- burning electrical immersion smell
- Replies: 4
- Forum: Central Heating Forum
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Worcester Bosch Greenstar Heatslave Boiler Smell.
Hello, this is my first time on the forum. Three months ago we had a 1000 lt fill. We then noticed a strong oil smell when the boiler was firing up. There was no sign of an oil spill. Contacted our engineer to have the boiler serviced, still the strong oil smell was there. Recommended having new...- Roxy42
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- boiler bosch greenstar heatslave smell worcester worcester bosch
- Replies: 29
- Forum: Oil and Solid Fuel Forum
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Help with drainage smell downstairs after loft conversion completion
Hi, I’m really hoping someone can help me please or at least point me in the right direction. We had a loft conversion finished last year and moved up into it December time. It included en-suite with shower and bath. When we first used the shower the following day found a huge wet patch on the... -
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Bad smell from Master Bathroom / En-Suite
Hi All, I've got a recurring really bad/strong smell coming exclusively from the 1st floor Master Bathroom and En-suite (Ground floor and top floor bathrooms are fine!). To help explain, I've added two photos showing the layout/setup below, in which i've tried to show the soil pipe layout too... -
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Urine smell around toilet but no visible leak
I bought a house a couple of months ago. In the last few weeks there is a relatively strong smell of urine around one of the toilets. It only ever smells of urine no other sewerage smells. Could this be the wax seal? Everything I can find seems to say there would be a visible leak if it was an...- Deedop
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- Forum: DIY Plumbing Forum
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Bad smell from around internal soil pipe
Hi I moved house about 9 months ago. Around 3 months after moving in I started to notice an intermittent sewage smell in the bathroom upstairs. For the last few months I have been checking all traps and trying to pinpoint the smell. There is no issue with the traps, I believe the smell is...- skipfeeney
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- america around bad smell internal pipe smell soil soil pipe usa
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- Forum: USA
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Why does the hot tap on my bath smell like rotten eggs
Hi, i hope someone can help with this situation. Over the last week I’ve noticed that when running hot water for a bath it stinks of rotten eggs. This hasn’t happened before and seems to have come nowhere. We recently (about 6 weeks ago) had a couple of rads fitted in the house but I’m not...- stewart2000
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- america bath hot smell tap usa
- Replies: 2
- Forum: USA
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Sewage stink can not find source
I do not know anymore.i bought a home.in spain.top floor(4rth floor) I get a horrid stink in my apartment every time thebperson Below me does Laundry. Our washers are in the kitchen. So i have taken the pipes apart and they were clean inside. The smell NEVER comes from the sink but always is...- Fijifranny
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- america find leakage sewage smell source usa
- Replies: 3
- Forum: USA
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Ground floor flat - intermittent sewer smell
Hi All, I live in a ground floor flat and sometimes when the back door is open get a sewer smell come into the hallway. It's very intermittent and only happens when the upstairs flat is running water. There's two drains from upstairs, one from the kitchen and then one from the bathroom which is...- Radders_72
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- america flat floor ground intermittent sewer sewer smell smell usa
- Replies: 2
- Forum: USA
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A Smell And Water Jetting
Hello all I will be as brief as possible. The flat i have rented has a stale drain smell in the kitchen living room. Second floor of 4 story block built in the 1980s. Stack pipe runs inside in corner of room boxed in behind tiling. After checking traps, cleaning the dishwasher and the washing...- JackLondon
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- america smell usa water
- Replies: 0
- Forum: USA
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Air Admittance Valve question for bad smell
Hi Everyone, We have a new house that may not have been piped correctly. There is a sewer smell in the laundry room and I am thinking of adding an air admittance valve to the standpipe in the laundry room since I do not know if the drain is connected to a vent pipe. Would that be okay to do to... -
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Smell under my kitchen sink/ kitchen
Hello I live in Spain, on the 4rth Floor (last floor) of an older building. I was so happy to get an upper floor,cause I know the low floors often suffer from smelly problems here However I sometimes have a horrible smell in my kitchen...a smell that suddenly comes up...AND on top it always...- Fijifranny
- Thread
- america kitchen kitchen sink plumbing sewer smell sink smell under usa
- Replies: 7
- Forum: USA
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Soil Pipe Box smell and insulation.
Hello all, Our first post on here, so please be gentle. We are based in the UK and undergoing a kitchen renovation (not a DIY build), and just had the soil pipe box removed from the utility room (in order to make it smaller to allow us to fit wall cabinets and easily access/remove the washing...- philgina101
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- america insulation pipe smell soil soil pipe usa
- Replies: 5
- Forum: USA
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Can't get rid of the smell of gas sewerage leak, under my kitchen sink.
There is no smell coming out of my sink plughole, never has been. There are no water leaks in the piping and U-bend under my sink. Have tried on several occasions using very strong drain un-blocker and odour remover, to remove smell, but has not worked. Sink plughole never blocks up and water... -
Strange smell downstairs bathroom, strange draining toilet upstairs...
I live in a 2-story townhouse, and here's what I'm experiencing. # For a several years now The upstairs toilet slow-drains to the point where after being out of the house with no flushes for a day or two, you come home and there is no water in the bowl. Because of that it smells. Meanwhile the... -
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Washing machine smells
Hi guys, looking for some help. We bought a new washing machine a few weeks ago because the old one packed in. We think there was a slight smell from the washed clothes in the old machine before it gave up the ghost Before I ordered a new one I had a look to check it wasn’t a simple issue... -
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Smell from Macerator after flushing
Hi everyone Around two months ago I got my old macerator replaced with a new Grundfos Sololift 2 WC-3 macerator. Its been working great without any problems except in the last two weeks every time I flush the toilet, the macerator emits a foul smell when the machine is operating. The unit... -
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Self cleaning drain smell unblocking
Hello My upstairs shower drain is smelling absolutely rotten, water is draining a little slower than normal. I’m 99% sure it’s my gf’s hair (had this issue in the past). The waste is a Crosswater self cleaning vortex style one (think it’s made by Wirquin) to go with the shower tray. It blocked...- cluelessDIYguy
- Thread
- america cleaning drain smell usa
- Replies: 17
- Forum: USA
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