putamen & caudate circuits_(human physiology)_presentation_by biomedical association of students...

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Starting With That Great Name ,

Whose Help We Solicit . . .

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Putamen & Caudate

Circuits

By:

Asad Ali Siyal

 Department of Biomedical Engineering ,

 Mehran University of Engineering & Technology

(MUET), Jamshoro, Sindh, Pakistan

engrasadsiyal@yahoo.com

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Contents:

• Introduction

• Putamen Circuit

• Caudate Circuit

• Abnormalities / Disorder

• Anatomical Structure

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INTRODUCTION

Basically there are two major circuits regarding basal ganglia.

•Putamen Circuits

•Caudate Circuits

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INTRODUCTION

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PUTAMEN CIRCUIT

INTRODUCTION: 

• The principal pathway through basal ganglia for executing learned

pattern of movements• It takes inputs mainly from those parts of brain which are adjacent to the

primary motor cortex

LOCATION: 

• It begin mainly in premotor and supplementary motor areas of motor

cortex as well as in primary somato - sensory areas of sensory cortex

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PUTAMEN CIRCUIT

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PUTAMEN CIRCUIT

This schematic drawing depicts the relationship between the putamen and the caudate.

Note the continuity of the putamen and the head of the caudate nucleus

rostroventrally

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PUTAMEN CIRCUIT

FUNCTION: 

• The main function of the putamen is to regulate movements and

influence various types of learning.

• The putamen also plays a role in degenerative neurological disorders,

such as Parkinson's disease.

• It works in conjunction to control many types of motor skills.

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CAUDATE CIRCUIT

INTRODUCTION: • Caudate neucleus is actually the cognitive contorl of motor activity

• It works with the putamen to receive the input from association area of brain (cerebral cortex)

LOCATION: 

•

It extends in all lobes of cerebrum starting anteriorly in frontal lobe• Then passing posteriorly through the parietal and occipital lobes, and

finally curving forward again like a letter “c” into temporal lobes.

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CAUDATE CIRCUIT

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CAUDATE CIRCUIT

This is a transverse section of the striatum from a structural MR image.

The striatum includes the caudate nucleus (top) and putamen (right) and

the globus pallidus (left).

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CAUDATE CIRCUIT

FUNCTION: 

• It is considered the "entrance" to the basal ganglia.

• Caudate nucleus plays a major role in cognitive control of motor activity.

• Cognitive control of motor activity determines which patterns of 

movement will be used together, and in what sequence to axhieve a

complex goal.

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 ABNORMALITIES / DISORDER

Putamen Circuit:When any portion of this circuit is damaged or blocked certain pattern

of learned movements become severely abnormal.

Caudate Circuit:When any portion of this circuit is damaged or blocked thinking

processes become severely abnormal.

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 ANATOMICAL STRUCTURE

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 ANATOMICAL STRUCTURE

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 ANATOMICAL STRUCTURE

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QUESTIONS…?? 

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