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Signals from the neurons of which sense are NOT sent to the cortex by the thalamus?
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∙ 10y ago
Smell
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∙ 10y ago
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Is the only sense in which signals can reach the cerebral cortex without passing first through the thalamus?
The sense of smell can bypass the thalamus, it is only secondarily sent through it when you are analyzing or comparing it to other smells.
What special senses is relayed directly to the cerebral cortex without going to the thalamus?
Its smell Information goes to olfactory cortex of the frontal lobe without going through the thalamus. Its the only major sense that does not go through the thalamus
What part of the brain serves as the relay station for receiving information from the sense organs and sending it to the cerebal cortex for processing?
The thalamus
What part of the brain is involved in sensory adaptation?
The part of the brain that is involved in sensory adaptation is the cerebral cortex. This area of the brain adapts the body's senses into signals so that hey can be understood by the brain. Touch, taste, smell, and sight sense signals are the signals that are converted.
Which type of sensory information does not pass through the thalamus?
A person's sense of smell does not first need to be processed by the Thalamus before entering the Cortex. This is often times why a smell can cause a memory recall faster than other kinds of sensory input.
What region of the brain is the thalamus found in?
The thalamus is a brain structure involved in the execution and organization of movement, among other things. It is located in the diencephalon, beneath the cerebral cortex.In the brain.
What part of the brain serves as the relay station for receiving information form the sense organs and sending it to the cerebral cortex for processing?
The Thalamus receives the information. It is then relayed to the post-central gyrus of the cerebrum on which you can map the human body. This is called the sensory humunculus (or little human).
What is the role of the thalamus in hearing vision taste and smell?
It is the part of the brain whose function includes relaying sensation, special sense and motor signals to the cerebral cortex, along with the regulation of consciousness, sleep and alertness.It acts as a kind of railway signal box. As information comes in through the senses, it goes directly to the thalamus and it sends the signals off to different parts of the railway yard (brain). It will send the signal to the cortex, or rational part of the brain and to the limbic or emotional brain at the same time. Although the limbic system will react to the stimulus a lightning split second quicker than the cortex, often sending people into flight or fight when it's not really appropriate in the present circumstances.--1. Thalamus acts as a relay station for both afferent and efferent fibres of the cerebral cortex. ]2. Along with the hypothalamus, it helps in sleep and wakefullness.3. Along with the cerebellum & basal ganglia, it helps in maintaining body posture.The thalamus is a by-station from the sensory organs to the cerebral cortex sensory regions. It has a somatosensory mapping of the body and has known integrative functions.There is also a part of the brain called the hypothalamus. It is the "leader" of the endocrine system. It controls what and where the hormones do and go and when they go at a certain time---One of the functions of the thalamus is to relay sensory information by transmitting axons to other regions of the cerebral cortex. Such as: the sense of touch is relayed to the parietal lobe, the sense the sight is relayed to the occiptal lobe, the sense of hearing is relayed to the temporal lobe, and the sense of balance is relayed to the cerebellum. The thalamus does NOT relay the sense of smell to the temporal lobes though.---The thalamus is the gateway to the brain that is responsible or receiving almost all incoming sensory information before the information reaches the cortex. Axons from every sensory system, except for olfaction, synapse in the thalamus as a last pit stop before the information reaches the cerebral cortex.The functions of the thalamus include relaying sensory and motor signals to and from the cerebral cortex, regulating consciousness, sleep, and alertness.The thalamus is a by-station from the sensory organs to the cerebral cortex sensory regions. It has a somatosensory mapping of the body and has known integrative functions.There is also a part of the brain called the hypothalamus. It is the "leader" of the endocrine system. It controls what and where the hormones do and go and when they go at a certain time http://www.answers.com/thalamus receives messages from all of the sensory receptors throughout the body and then relays the info to the proper region of the cerebrum for further processing.A small glandular organ that is situated behind the top of the breastbone, consisting mainly of lymphatic tissue and serving as the site of T cell differentiation. The thymus increases gradually in size and activity until puberty, becoming vestigial thereafter.It relays information from different parts of the brain.it is part of your brain. it is the relay for sensory impulses. it shows what is pleasant and unpleasant.The thalamus is a major relay center. All incoming sensory information except smell goes through the thalamus, before reaching the cerebral cortex. (And even smell has a pathway connecting to the thalamus.) The actual processing of the sensory information starts here, this is especially true about vision. It also participates in the regulation of sleep, arousal and wakefulness, and plays a role in motor functions as well.
Can atomic neurons be sensory or afferent neurons?
I believe you mean autonomic neurons (part of the ANS) and yes, they can be sensory neurons. Sensory neurons are the same as afferent neurons--meaning they carry signals towards the CNS. Think as afferent as 'approaching'. Anyhow, these neurons sense the conditions of your visceral organs and whatnot. Other wise it would have no information to judge for what signals to send. So yes, autonomic neurons consist of both sensory (afferent) and motor (efferent) neurons.
Why does sense of smell bypass the thalamus?
I found this info:Does anything about this system strike you as odd? The olfactory system disobeys a general rule of sensory systems - it does not have to pass through thalamus before reaching cortex. However, there is a very good reason why not; olfactory cortex is an old and primitive structure, and in fact has only four cellular layers, unlike the 6-layered cortex we are accustomed to. The rule that sensory information must pass through thalamus to get to cerebral cortex is still true, but only for 6-layered cortex, or neocortex. This description applies to almost every area in the frontal, parietal, occipital, and temporal lobes.It also seems like the olfactory bulb does a lot of the processing and sends sensory info directly to the olfactory cortex.
What Sense is not routed through thalamus before processing?
The sense of Olfaction or smell. Unlike the rest of the senses which are routed through the thalamus, olfaction goes through the olfactory cortex in the temporal lobe and to the limbic system which is associated with memory. That is the reason smell is strongly associated with emotion is due to it's ties to the limbic system. Source; http://en.wikipedia.org/wiki/Olfaction
What sense does not go through thalamus?
The sense of smell can bypass the thalamus, it is only secondarily sent through it when you are analyzing or comparing it to other smells.
