Olfactory Anatomy
These regions include the. The olfactory bulb 1 contains mitral cells 2 that receive information from the olfactory cells 6.
Special Senses 4 Olfactory Anatomy
In this way information from large numbers of receptor cells with similar properties is brought together.
Olfactory anatomy. The olfactory nerve is the shortest nerve in the human head. The peripheral olfactory system consists mainly of the nostrils ethmoid bone nasal cavity and the olfactory epithelium layers of thin tissue covered in mucus that line the nasal cavity. Which is located below the lateral olfactory stria.
The group of axons called the olfactory tract connect to the olfactory bulb on the ventral surface of the frontal lobe. The bony framework of the nose is part of the skull but the outer nose is supported only by bone above. 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.
The olfactory receptor neurons are incorporated into a limited region of the nasal epithelium in the superior nasal cavity. This chapter describes the general anatomy and microanatomy of the olfactory system. Mitral and tufted cells then relay impulses from the bulb to other brain regions.
The axon of an olfactory neuron extends from the basal surface of the epithelium through an olfactory foramen in the cribriform plate of the ethmoid bone and into the brain. It is speculated that olfaction may have important but unobtrusive effects on human behavior. Anatomy of the structures involved in smell olfaction.
Which is located anterior to the temporalinferior horn of the lateral ventricle and is associated with the emotion of fear. The olfactory sensory neurons send their axons directly to synapse within the olfactory bulb. A number of conditions can interfere with your sense of.
Your sense of smell and what can damage it anatomy. Which is the anterior part of the. The anatomy physiology and function of the olfactory system are reviewed as are the normal effects of olfactory stimulation.
Unlike many other nerves the olfactory nerve has one jobmaking you able to smell things. It is a special visceral afferent nerve which transmits information relating to smell. The olfactory nerve cn i is the first and shortest cranial nerve.
The axons of all the receptor cells that exhibit a response to a specific chemical or range of chemicals with similar structures converge on a single glomerulus where they connect via synapses with the interneurons.
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