Central Sulcus Function and Structure

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Questions and Answers

What is the location of the Central Sulcus?

In the temporal lobe
In-between the frontal and parietal lobes (correct)
In the occipital lobe
On the surface of the brain

What is the function of the Central Sulcus?

Separates the parietal and frontal lobes, and the Primary Motor Cortex and the Primary Somatosensory Cortex.

When does the Central Sulcus appear?

Around six months of fetal life.

What is the Central Sulcus filled with?

Fluid. Signup and view all the answers

What does the content of CSF affect?

Whether the Central Sulcus shows up light or dark on an MRI. Signup and view all the answers

What is the Central Sulcus's shape related to?

The dominant hand. Signup and view all the answers

Study Notes

Location

Positioned between the frontal and parietal lobes of the brain.

Function

Serves as a dividing line between the frontal and parietal lobes.
Distinguishes the Primary Motor Cortex (controls voluntary movements) from the Primary Somatosensory Cortex (processes sensory information).

Development

The Central Sulcus develops around six months into fetal life, indicating its early formation in brain development.

Composition

The sulcus is filled with cerebrospinal fluid (CSF), which plays a crucial role in brain protection and nutrient supply.

Imaging Effects

The content of cerebrospinal fluid impacts the appearance of the Central Sulcus in MRI scans, influencing whether it appears light or dark.

Morphology

The shape of the Central Sulcus is associated with hand dominance; individuals with a dominant hand have a larger cortical area devoted to that hand compared to the non-dominant hand.

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Description

Explore the Central Sulcus, its location between the frontal and parietal lobes, and its crucial role in distinguishing key brain functions. Learn about its development, composition, and morphology, including its significance in MRI imaging and hand dominance. This quiz tests your understanding of brain anatomy and physiology.