Sense of smell - Wikipedia
The sense of smell, or olfaction, [nb 1] is the special sense through which smells (or odors) are perceived. [2] The sense of smell has many functions, including detecting desirable foods, hazards, and pheromones, and plays a role in taste.
Sense of Smell: Structural, Functional, Mechanistic Advancements …
2022年9月19日 · The sense of smell is important in medical and biological studies as it performs a dynamic range of very crucial functions in organisms. The mechanisms by which myriad of structurally diverse odorants are readily recognized and differentiated is still a puzzle.
The Olfactory System and Your Sense of Smell - ThoughtCo
2021年8月17日 · The olfactory system is responsible for our sense of smell. This sense, also known as olfaction, is one of our five main senses and involves the detection and identification of molecules in the air.
What is Sense of Smell? Olfaction, Olfactory Receptors & Smell …
The sense of smell or an olfactory sense enables us to detect pleasant, unpleasant, or odourless things. Our sense of smell is a chemosensory mechanism that detects chemicals in the air via the nose (sensory organ).
Making Sense of Scents: Smell and the Brain - BrainFacts
2015年1月27日 · Smell begins at the back of nose, where millions of sensory neurons lie in a strip of tissue called the olfactory epithelium. The tips of these cells contain proteins called receptors that bind odor molecules.
Olfactory system - Wikipedia
The olfactory system, or sense of smell, is the sensory system used for olfaction (i.e., smelling). Olfaction is one of the special senses directly associated with specific organs. Most mammals and reptiles have a main olfactory system and an accessory olfactory system.
Understanding Smell - Ask A Biologist
2017年9月14日 · Your sense of smell is called olfaction. Your sense of smell relies on your nose’s recognition of tiny particles in the air called odorants. Odorant particles are released from their source for many different reasons.
The Senses: Smell and Taste - Dana Foundation
2023年9月20日 · The sense of smell plays a vital role in finding food, discriminating it from toxic substances, and appreciating its flavor (smell is a key component of what we commonly call “taste”-see below).
Olfactory system | Parts, Function, & Organs | Britannica
olfactory system, the bodily structures that serve the sense of smell. The system consists of the nose and the nasal cavities, which in their upper parts support the olfactory mucous membrane for the perception of smell and in their lower parts act as respiratory passages.
Tailoring sense of smell one receptor at a time | NIH Common Fund
Our noses have specialized “smelling cells” that control how we smell the world around us. These cells, called olfactory sensory neurons, help us decide if milk is spoiled or if there is a fire nearby. Each of these cells is covered with protein detectors, called olfactory receptors, that sense and transmit these smells to our brains. In humans, there are more than 400 different versions ...