Olfactory receptor neuron

"We are all more influenced by smell than we know." (Hercule Poirot) ....Murder in Retrospect, Agatha Christie Biologists have long realized that the noses of most vertebrates actually contain two sensory channels. The first is the familiar olfactory system, which humans possess. The second channel is the vomeronasal complex, a system that has its own separate organs, nerves, and connecting structures in the brain. The function of the vomeronasal system is the detection of pheromones, chemical

The Olfactory System Introduction The human body is a complex organism that is composed of many different sensory systems. These systems work together to create various sensations within the body. The olfactory system, also known as the sense of smell, is one of the most imperative of all the sensory system. Mammals, both humans and animals, depend greatly on the olfactory system whether it is cognizant or unintentional. Many people fail to realize how much the sense of smell binds to almost every

Olfaction And Pheromones What is Olfaction? Olfaction is another word or a synonym used for the ability to smell or smell that anything carries with itself. It is by far one of the oldest senses that human and animals have carried likewise for ages. It allows organisms to identify food, as well allows them to copulate and evade the threat and danger posed by other predators besides providing sensual as well as warnings of danger pleasure. For both humans and animals, it is one of the important means

behavior as measured in the two-choice assay a) 3rd instar larvae: From previous studies of our lab (Newquist, Novenschi et al. 2016) we learnt that each larval ORN is functionally diverse and each ORN differentially contributes to olfactory behavior in the Drosophila melanogaster larvae. Based on these results, we postulated that individual ORNs might be differentially modulated under starved state conditions. To begin to address this question we started with a panel of seven different

In the article Is age related olfactory loss uniform across odorants? It has been reported that nearly one third of all older persons report displeasure with their sense of smell and taste, and the actual occurrence of sensory loss amongst the elderly is maintained to be

Aromatherapy: How real is it? Many of us have read about Aromatherapy. Some of us have experienced it. Aromatherapy has found its place within the spa environment, especially in a massage room. If you are reading this article, chances are that you know what aromatherapy is because of its undoubtedly popularity. Yet, the question continues to rise: Does it work? There are still doubts of its effectiveness among the western medical population stating that research continue to insist that there

called odorants. Odorants bind to olfactory receptor proteins (G-protein-coupled receptors) in the cilia of the olfactory sensory neuron to employ a second-messenger system to respond to the presence of odorants. The sense of smell begins with receptor neurons in the nose. The olfactory epithelium is responsible for detecting odors and has three types of cells: olfactory sensory neurons (OSN), basal cells and supporting cells. Odorants depolarize olfactory receptor cells (or OSN) through axons that

The process of smell in medical terms is called Olfaction. The olfactory system allows the brain to detect odorants, or chemicals in the air, that turn into signals which our brain can then use and interpret. Every smell has its own emotional response that triggers a memory. Certain smells can lead to different responses such as the need to fight or flight in the event of an emergency. When you smell something that gives you a memory, you do not think about how the scent is taken to your brain; it

seminar on functional imaging of the olfactory bulb in mice. He uses a fluorescent calcium-sensitive dye to label the receptor neurons in the nose; the dye is then transported to the terminals of those neurons in the olfactory bulb. All of the receptor neurons that express receptors for a certain type of odor molecule send their axons to the same localized structure within the olfactory bulb, called a glomerulus. By removing the skin and bone above the olfactory bulb, he can use a sensitive camera

demonstrates a difference in EAG signal after octanal vs. blank air presentations. What explains this difference? Why is there any signal at all after the blank air puff? In insects, the olfactory receptor neurons are located on the appendages, specifically, the antennae. In the presence of an ordant, the receptor proteins bind with the specific chemical and participate in a conformational change which