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Questions and Answers
Where is the site of the primary somatosensory area (SI)?
Where is the site of the primary somatosensory area (SI)?
- Postcentral gyrus + its medial extension in the posterior part of the paracentral lobule (correct)
- In the frontal lobe
- In the occipital lobe
- Precentral gyrus + its lateral extension in the anterior part of the paracentral lobule
What is the function of the somatosensory association cortex?
What is the function of the somatosensory association cortex?
- Responsible for olfactory perception
- Primarily involved in visual processing
- Mainly responsible for motor coordination
- Concerned with stereognosis and integrates various sensory inputs together (correct)
Where is the site of the primary auditory area (A1)?
Where is the site of the primary auditory area (A1)?
- In the temporal lobe
- Posterior transverse gyrus of Heschl in the floor of the anterior ramus of the lateral sulcus
- Anterior transverse gyrus of Heschl in the floor of the posterior ramus of the lateral sulcus (correct)
- In the parietal lobe
What is the function of the secondary auditory (association) area (A11)?
What is the function of the secondary auditory (association) area (A11)?
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Which area is concerned with perception of cutaneous and proprioceptive sensations from the opposite half of the body?
Which area is concerned with perception of cutaneous and proprioceptive sensations from the opposite half of the body?
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Study Notes
Somatosensory Area (SI)
- Located in the postcentral gyrus of the parietal lobe in the brain.
- Responsible for processing tactile information, including touch, pain, and temperature.
Somatosensory Association Cortex
- Involved in further processing sensory input from the primary somatosensory area.
- Integrates sensory information to help understand spatial relationships, object recognition, and interpreting sensory experiences.
Primary Auditory Area (A1)
- Situated in the superior temporal gyrus of the temporal lobe.
- Functions as the main hub for processing sound information, including pitch and volume.
Secondary Auditory (Association) Area (A11)
- Located adjacent to the primary auditory area in the temporal lobe.
- Responsible for more complex processing of auditory information, such as the recognition of sounds, understanding language, and music perception.
Perception of Cutaneous and Proprioceptive Sensations
- The primary somatosensory area perceives sensations from the opposite half of the body.
- This means that sensations on the right side of the body are processed in the left hemisphere and vice versa.
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