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- enhancing discrimination between odors.
- enhancing sensitivity of odor detection.
- filtering out many background odors to enhance the transmission of a few select odors.
- permitting higher brain areas involved in arousal and attention to modify the detection or the discrimination of odors.
Olfactory nerves act as transducers - changing chemical signals, as when an odor chemical binds to its receptor at an olfactory dendritic nerve ending, into nerve impulses - that is (i.e.) biological signals. These reside in the mucous membrane.
Nerve fibers leave the olfactory cells and enter the skull through the ethmoid bone, then disappear into the 'olfactory bulb' located at the anterior end of the 'olfactory tract', which then leads to the frontal - and eventually the temporal - lobe of the cerebrum.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoThe olfactory system is the sensory system used for olfaction, or the sense of smell. Most mammals and reptiles have two distinct parts to their olfactory system: a main olfactory system and an accessory olfactory system. The main olfactory system detects volatile, airborne substances, while the accessory olfactory system senses fluid-phase stimuli. Behavioral evidence indicates that most often, the stimuli detected by the accessory olfactory system are pheromones.
Wiki User
∙ 11y agoolfactory lobes are related with smell sense becuz olfactory mean smell
Wiki User
∙ 14y agoolfactory bulb is related with sense of smell. in human it has small in size but in animals its size is so large. therefore the sense on smell in animals is better then human
Wiki User
∙ 10y agoit carries the fish sperm out of the coudal fin and to the anus
Wiki User
∙ 14y agosmell
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Where are olfactory receptors located?
In vertebrates the olfactory receptors are located in the cilia of the olfactory sensory neurons. In insects olfactory receptors are located on the antennae and other chemo sensory organs.
How much stronger is a cats smell then people?
The olfactory receptor genes map topographically onto the first relay station, a sheet of modules called glomeruli in the olfactory bulb. Up to 80% of the glomerular layer in the rat can be removed without significant effect on olfactory detection and discrimination (Bisulco and Slotnick 2003). If the remaining 20% of the glomeruli-and the olfactory receptor genes they represent-can subserve the functions of 1,100 genes, it implies that 350 genes in the human are more than enough to smell as well as a mouse. Source : http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=406401
What is the function of the pectoral fin?
The pectoral fin mantains how deep the fish can go.
How are the parts of birds and fish similar in structure and function?
how are parts of birds & fish similar in structure & function
Why are the olfactory receptors said to be in a poor location?
Olfactory receptors are located in the nasal cavity. This leaves them vulnerable to damage, which is why it is said they are in a poor location.
Function of olfactory tract?
The olfactory tract is a bundle of axons connecting the mitral and tufted cells of the olfactory bulb to several target regions in the brain.
Function of olfactory organ in fish?
if i knew the answer i wouldnt be asking
Olfactory nerve filaments are found?
in the olfactory bulb
What is the bony structure between the olfactory epithelium and the olfactory bulb?
Cribriform plate
What are the main functions of a nose?
the nosetrills,nasal cavity,mucus membrame,cilia,olfactory nerves and olfactory bulb.
What is olfactory bulb?
olfactory bulb is related with sense of smell. in human it has small in size but in animals its size is so large. therefore the sense on smell in animals is better then human
What is the function of olfactory?
The olfactory lobes are parts of the human brain involved in the perception of smell.
Where is the olefactory bulb located?
The olfactory bulb (for the sense of smell) is located in the limbic system of the brain.
Does the olfactory bulb sense temperature and pressure?
NO it has to do with the sense of smell
What is olfactory fatigue?
it's a condition that deadens the sense of smell
How do olfactory receptors work to make smell possible?
The olfactory bulb is actually a tiny lobe of the brain. There are many thousands of different cell types in the olfactory bulb, each with receptors for different chemicals. When these receptors bind to their matching chemical in the air they become excited and trigger a nearby olfactory nerve cell. Details of what happens after this have yet to be worked out, but basically the firing of these nerve cells is analyzed by nerve circuits in the rest of the olfactory bulb then transferred to the brain, where we call it "smell".
What part of the brain controls smell?
FRONTAL LOBE
