Olfactory Anatomy

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. It is a special visceral afferent nerve which transmits information relating to smell.

Olfactory System Sense Of Smell

Unlike many other nerves the olfactory nerve has one jobmaking you able to smell things.

Olfactory anatomy. The group of axons called the olfactory tract connect to the olfactory bulb on the ventral surface of the frontal lobe. These regions include the. The olfactory nerve is the shortest nerve in the human head.

The bony framework of the nose is part of the skull but the outer nose is supported only by bone above. A number of conditions can interfere with your sense of. 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.

The olfactory sensory neurons send their axons directly to synapse within the olfactory bulb. Mitral and tufted cells then relay impulses from the bulb to other brain regions. This chapter describes the general anatomy and microanatomy of the olfactory system.

Which is the anterior part of the. The olfactory nerve cn i is the first and shortest cranial nerve. Which is located below the lateral olfactory stria.

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 bulb 1 contains mitral cells 2 that receive information from the olfactory cells 6.

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. Your sense of smell and what can damage it anatomy. The anatomy physiology and function of the olfactory system are reviewed as are the normal effects of olfactory stimulation.

In this way information from large numbers of receptor cells with similar properties is brought together. The olfactory receptor neurons are incorporated into a limited region of the nasal epithelium in the superior nasal cavity. It is speculated that olfaction may have important but unobtrusive effects on human behavior.

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.

Lateral Section Of The Human Nose Shown Are Key Anatomical