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Olfactores is a clade within the Chordata that comprises the Tunicata (Urochordata) and the Vertebrata (sometimes referred to as Craniata). Olfactores represent the overwhelming majority of the phylum Chordata, as the Cephalochordata are the only chordates not included in the clade.
Olfactory system. The olfactory system or sense of smell is the sensory system used for smelling ( olfaction ). Olfaction is one of the special senses, that have directly associated specific organs. Most mammals and reptiles have a main olfactory system and an accessory olfactory system.
Il clade Olfactores viene ben supportato anche da recenti analisi genetiche con l'utilizzo di miRNA [3] che rappresentano un sempre più promettente marker filogenetico. Tunicata contiene 2150 specie descritte, ed è tradizionalmente divisa in 3 classi: Ascidiacea ( Aplousobranchia, Phlebobranchia e Stolidobranchia)
L'olfatto è il più studiato dei tre sistemi chemiosensoriali. Indice. 1 Odore. 2 Nell'essere umano. 2.1 Anatomia e fisiologia. 2.1.1 Recettori olfattivi. 2.1.2 Il bulbo olfattivo. 2.1.3 Trasduzione olfattiva. 2.2 Risposte psico-fisiologiche agli odoranti. 2.3 L'olfatto sessuale. 2.4 L'olfatto del neonato. 3 Patologie del sistema olfattivo.
The sense of smell has many functions, including detecting desirable foods, hazards, and pheromones, and plays a role in taste. In humans, it occurs when an odor binds to a receptor within the nasal cavity, transmitting a signal through the olfactory system. [3]
Evolution of olfaction. Odor molecules are detected by the olfactory receptors (hereafter OR) in the olfactory epithelium of the nasal cavity. Each receptor type is expressed within a subset of neurons, from which they directly connect to the olfactory bulb in the brain. [1] Olfaction is essential for survival in most vertebrates ...
Olfactores is a group, called a clade, in taxonomy. Taxonomy is the way scientists put living things in groups to show how they are related to each other. Olfactores is part of the phylum Chordata, animals with notochords. These are rods of tissue that form inside the developing embryo.
