Asked by: Desheng Santanu
medical health brain and nervous system disorders

What are the two major somatosensory pathways?

Last Updated: 21st April, 2020

11
Key Points
  • The main somatosensory pathways that communicate with the cerebellum are the ventral (or anterior) and dorsal (or posterior ) spinocerebellar tracts.
  • The ventral spinocerebellar tract will cross to the opposite side of the body then cross again to end in the cerebellum (referred to as a double cross).

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Also, what is the somatosensory pathway?

The somatosensory tracts (also referred to as the somatosensory system or somatosensory pathways) process information about somatic sensations such as pain, temperature, touch, position, and vibration. This information is received through receptors inside or at the surface of the body.

Also, what are the three sensory pathways? Anatomically, the ascending sensory systems consist of three distinct pathways: the anterolateral system (ALS), the dorsal column–medial lemniscal (DCML) pathway, and the somatosensory pathways to the cerebellum.

Thereof, what is the function of the somatosensory system?

The somatosensory system is the part of the sensory system concerned with the conscious perception of touch, pressure, pain, temperature, position, movement, and vibration, which arise from the muscles, joints, skin, and fascia.

What is special about the location of the primary somatosensory cortex?

The primary somatosensory cortex is responsible for processing somatic sensations. These sensations arise from receptors positioned throughout the body that are responsible for detecting touch, proprioception (i.e. the position of the body in space), nociception (i.e. pain), and temperature.

Related Question Answers

Barbara Ocampo

Professional

Which body part is most sensitive to somatosensory stimuli?

For the tactile component of the somatosensory system, the skin covering the entire body, head and face functions as the touch receptor organ, whereas joint tissues, muscles and tendons act as the proprioception receptor organs.

Andriu Tillemans

Professional

Which are examples of somatosensory senses?

Somatosensation is the group of sensory modalities that are associated with touch, proprioception, and interoception. These modalities include pressure, vibration, light touch, tickle, itch, temperature, pain, proprioception, and kinesthesia.

Katiana Veras

Professional

What is the difference between sensory and somatosensory?

Broadly speaking sensory selection refers to the activation of either of the 5 traditional senses of sight/vision, hearing, taste, smell or touch while the Somatosensory system is also often referred to as extrasensory.

Arcadie Ylardia

Explainer

How does sensory information reach the brain?

Sensory input to the brain enters through pathways that travel through either the spinal cord (for somatosensory input from the body) or the brain stem (for everything else, except the visual and olfactory systems) to reach the diencephalon. In the diencephalon, sensory pathways reach the thalamus.

Miller Gorgojo

Explainer

What part of the brain controls somatosensory?

The somatosensory cortex is an important part of the cerebral cortex in the brain that processes sensory information from the body. Neurons from different parts of the body that receive environmental stimuli all send their information to the somatosensory cortex.

Mayerly Nilu

Explainer

What is touch sense?

Sense of touch. Your sense of touch, or tactile sense, is made up of a very fine network of receptors in your skin, forming your body's largest sensory system. The receptors sense pressure on the skin, and that is how you can feel touch. There are tactile organs all over the body.

Itai Isherwood

Pundit

What part of the brain is responsible for proprioception?

Conscious proprioception is relayed mostly by the dorsal column and in part by the spinocervical tract. Finally, the organ of perception for position sense is the sensory cortex of the brain.

Sujuan Elizaga

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Is Crude touch the same as light touch?

Touch and the discriminative general senses encompass a number of sensory modalities. Touch by itself refers to crude (also called light) and movement sensation, which yields little information apart from the fact of contact with an object.

Ghali Guillen

Pundit

What happens if the somatosensory cortex is damaged?

Damage to the sensory cortex results in decreased sensory thresholds, an inability to discriminate the properties of tactile stimuli or to identify objects by touch. The somatosensory association cortex (areas 5 and 7) is directly posterior to the sensory cortex in the superior parietal lobes.

Izarra Zanon

Pundit

Which is a somatic sense?

Noun. 1. somatic sense - the faculty of bodily perception; sensory systems associated with the body; includes skin senses and proprioception and the internal organs. somaesthesis, somataesthesis, somatic sensory system, somatosensory system, somesthesis, somaesthesia, somesthesia, somatesthesia.

Falak Velardo

Teacher

Where is the Postcentral gyrus located?

The postcentral gyrus is a prominent gyrus in the lateral parietal lobe of the human brain. It is the location of the primary somatosensory cortex, the main sensory receptive area for the sense of touch. Like other sensory areas, there is a map of sensory space in this location, called the sensory homunculus.

Danny Huayta

Teacher

How do mechanoreceptors work?

Definition of Mechanical Receptor
Just as a taste bud on the tongue detects a taste, mechanoreceptors are receptors in the skin and on other organs that detect sensations of touch. They are called mechanoreceptors because they are designed to detect mechanical sensations or differences in pressure.

Haiying Grigoras

Teacher

What is tactile response?

Tactile feedback is essentially a physical response on a device from user input. Even if you are unfamiliar with the technology, chances are you've a device with tactile feedback before. It's used in smartphones, tablets, major appliances, car navigation systems and more.

Caron Barbeira

Teacher

What are the somatosensory receptors?

Somatosensory Receptors. Somatosensory Receptor(s): a cell or group of cells specialized to detect changes in the environment and trigger impulses in the sensory nervous system. ( OxfordMed) Specialized to respond to a particular physical property, such as "touch," "light," or "temperature." (

Rina Turrillo

Reviewer

What are the sensory pathways?

Sensory pathways are sensation or impulses conducting routes between sense organs or receptors to the reflex centres of one of the two destinations of brain, cerebral cortex and cerebellum. Sensory Pathways consists of tracts, broadly divided into Ascending tract and Descending tract.

Modibo Hong

Reviewer

What is the function of motor pathways?

Motor pathways carry signals from the brain to skeletal muscle and smooth muscle such as those contained in glands. The system consists of upper and lower motor neurones.

Jaimie Bennasar

Reviewer

Do sensory pathways travel to or from the brain?

Somatosensory pathways relay information between the brain and nerves in the skin and organs. Ascending pathways, also called afferent pathways, send somatosensory information from the body up to the brain through a series of afferent nerves.

Weimei Terreno

Reviewer

Where does sensory Decussation occur?

The sensory decussation or decussation of the lemniscus is a decussation or cross over of axons from the gracile nucleus and cuneate nucleus. The fibres of this decussation are called the internal arcuate fibres and are found at the superior aspect of the closed medulla superior to the motor decussation.