Cerebal Hemispheres Flashcards

0
Q

Autism

A

Development disorder characterized by difficulty in social communication skills and restricted behaviors

*Increased # of minicolumns found

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1
Q

Vellate astrocytes

A

Fnxn to maintain the spatial separation b/w mini- and macro- columns

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2
Q

Apraxia

A

Inability to carry out a learned, skilled movement despite intact sensory, motor, and language fnxns

*Commonly seen in Alzheimer’s

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3
Q

Frontal Release Signs

A

Infant reflexes normally inhibited by Prefrontal Cortex in adults

1 Grasp Reflex

  1. Glabellar Reflex
  2. Suck Reflex
  3. Snout Reflex
  4. Rooting Reflex
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4
Q

Medullary Center

A

Deep white matter of cerebral hemispheres

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5
Q

Superior/Longitudinal fasciculi

A

Associational pathways that include the arcuate fasciculus (superior)

*Connects language areas to each other; lesions cause conduction aphasia

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6
Q

Cingulum

A

Part of cingulate gyrus involved w/ limbic system; serves as a connection to the hippocampus

*Most important pathway allowing emotions to mix w/ memories

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7
Q

Corpus Callosum

A

Major commissural pathway of brain

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8
Q

Corona Radiata

A

Major two-way projection pathway

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9
Q

Genu of Internal Capsule contains…

A

Corticobulbar axons

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10
Q

Sub & Retro-lenticular portion of IC

A

Contains auditory and visual radiations

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11
Q

Basal ganglia

A

Subcortical nuclei derived from the prosencephalon

*Divided into dorsal striatal structures (movement)
&
Ventral Striatal Structures ( Limbic fnxns)

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12
Q

Corpus Striatum

A

Caudate, putamen, and globus pallidus

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13
Q

Neostriatum

A

Caudate and Putamen

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14
Q

Lentiform nucleus

A

Putamen and Globus Pallidus

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15
Q

Location of amygdala

A

Immediately beneath cortex of temporal pole; important in learned fear

16
Q

Rooting Reflex

A

Baby will turn head and open mouth when looking for food; may require slight stroke of the cheek