Medical Neuroscience- Week 2, Lesson
1: Cerebral Cortex, Brainstem, and
Blood Supply Questions and Answers
Frontal lobe gyral formations - Answer-3 parallel, longitudinal gyral formations are
anterior to the precentral gyrus between the lateral and longitudinal fissures.
Superior frontal gyrus - Answer-Frontal lobe gyrus that continues from medial
surface of hemisphere in depths of longitudinal fissure.
Superior frontal sulcus - Answer-Seperates superior frontal gyrus from middle frontal
gyrus.
Precentral sulcus - Answer-Interrupted sulcus that separates superior frontal gyrus
and middle frontal gyrus from precentral gyrus.
Broca's Area - Answer-Part of inferior frontal gyrus that contains functional division of
the motor cortex that participates in production of speech. LH is dominant. Also
involved in imitation learning
Superior Temporal gyrus - Answer-Gyral structure that forms inferior bank of lateral
fissure. Parallel to lateral fissure and extends from temporal lobe to parietal lobe.
One of 3 elongated gyral structures parallel to lateral fissure.
Superior Temporal Sulcus - Answer-Separates superior and middle temporal gyri
Inferior Temporal Sulcus - Answer-Separates middle and inferior temporal gyri.
Discontinuous and difficult to recognize.
Wernicke's Area - Answer-*Specifically posterior aspect of superior temporal gyrus.
Cortical divisions in superior aspect of the temporal lobe that functions pertain to
audition and the reception of language.
Postcentral Gyrus - Answer-Prominent gyral structure in posterior bank of the central
sulcus in parietal lobe. Concerned with somatic sensation.
Postcentral Sulcus - Answer-Posterior to postcentral gyrus and seperates
postcentral gyrus from superior and inferior parietal lobules.
Intraparietal sulcus - Answer-Meandering and discontinuous sulcus between
superior and inferior parietal lobules
Supramarginal gyrus - Answer-1 of 2 gyral formations inferior to the intraparietal
sulcus in inferior parietal lobule. Forms horseshoe shape around posterior limit of
lateral fissure.
1: Cerebral Cortex, Brainstem, and
Blood Supply Questions and Answers
Frontal lobe gyral formations - Answer-3 parallel, longitudinal gyral formations are
anterior to the precentral gyrus between the lateral and longitudinal fissures.
Superior frontal gyrus - Answer-Frontal lobe gyrus that continues from medial
surface of hemisphere in depths of longitudinal fissure.
Superior frontal sulcus - Answer-Seperates superior frontal gyrus from middle frontal
gyrus.
Precentral sulcus - Answer-Interrupted sulcus that separates superior frontal gyrus
and middle frontal gyrus from precentral gyrus.
Broca's Area - Answer-Part of inferior frontal gyrus that contains functional division of
the motor cortex that participates in production of speech. LH is dominant. Also
involved in imitation learning
Superior Temporal gyrus - Answer-Gyral structure that forms inferior bank of lateral
fissure. Parallel to lateral fissure and extends from temporal lobe to parietal lobe.
One of 3 elongated gyral structures parallel to lateral fissure.
Superior Temporal Sulcus - Answer-Separates superior and middle temporal gyri
Inferior Temporal Sulcus - Answer-Separates middle and inferior temporal gyri.
Discontinuous and difficult to recognize.
Wernicke's Area - Answer-*Specifically posterior aspect of superior temporal gyrus.
Cortical divisions in superior aspect of the temporal lobe that functions pertain to
audition and the reception of language.
Postcentral Gyrus - Answer-Prominent gyral structure in posterior bank of the central
sulcus in parietal lobe. Concerned with somatic sensation.
Postcentral Sulcus - Answer-Posterior to postcentral gyrus and seperates
postcentral gyrus from superior and inferior parietal lobules.
Intraparietal sulcus - Answer-Meandering and discontinuous sulcus between
superior and inferior parietal lobules
Supramarginal gyrus - Answer-1 of 2 gyral formations inferior to the intraparietal
sulcus in inferior parietal lobule. Forms horseshoe shape around posterior limit of
lateral fissure.
