Anatomy - Lab 5 Flashcards
Where is the primary motor cortex found?
Precentral gyrus
Where is the primary somatosensory cortex found?
Postcentral gyrus
What is found on the inferior frontal gyrus?
Broca’s area (left hemisphere) = speech
What is the function of the angular gyrus?
Interpretation of language (especially written)
What is the transverse temporal gyrus and where is it found?
Primary auditory cortex
Found within the lateral sulcus
Where is the insula lobe found?
Found within the depths of lateral sulcus
Occlusion of which artery would result in loss or aberrant speech and language function?
Middle cerebral artery (MCA)
Where is the primary visual cortex found?
Lies on the gyri of either side of the calcarine sulcus
What forms the paracentral lobule?
Found on the medial side
Formed by the precentral gyrus, central sulcus and postcentral gyrus
The paracentral lobule has upper motor neurons for which parts of the body?
Lower extremity
The paracentral lobule receives sensory info from which parts of the body?
Lower extremity and genitals
Occlusion of which cerebral artery would result in loss of primary visual cortex activity?
Posterior cerebral artery
Occlusion of which cerebral artery would result in loss of ability to wiggle toes?
Anterior cerebral artery
Where is the primary olfactory cortex found?
Uncus
Where is the anterior perforated substance found?
Area underlying origin of MCA
Perforated by many small blood vessels
What does the anterior perforated substance supply?
Deep nuclei of the region and parts of internal capsule
What forms the diencephalon?
Thalamus
Hypothalamus
Epithalamus
Subthalamus
What joins the two halves of the thalamus?
Interthalamic adhesion
Name the different parts of the corpus callosum.
Rostrum (anterior)
Genu
Body
Splenium
What does the corpus callosum form?
Roof of the lateral ventricle
What is the epithalamus made of?
Pineal gland
Habenula
What does the septum pellucidum separate?
Anterior horns of the left and right lateral ventricles
What does the fornix connect?
The hippocampus to mamillary bodies
Anterior wall of third ventricle
Column of fornix
Anterior commissure
Interventricular foramen
Lamina terminalis
Roof of third ventricle
Choroid plexus
Pineal gland and stalk
Inferior wall of third ventricle
Mamillary body
Optic chiasm and optic recess
Infundibulum
Lateral walls of third ventricle
Thalamus
Hypothalamic sulcus
Hypothalamus
Where is the pineal gland found?
Below the splenium of the corpus callosum (posterior aspect)
Lesion of the posterior part of the posterior limb would cause impaired motor control of what part of the body?
Lower extremity
What gyrus lies parallel to the corpus callosum?
Cingulate gyrus
What structure forms the medial wall of the anterior horn of the lateral ventricle?
Septum pallucidum
What parts of the right and left lateral ventricles are closest together and what separates them?
Anterior horns - separated by septum pallucidum
What subdivision does the pineal gland belong to?
Diencephalon
What subdivision of the brain does the superior colliculus belong to?
Midbrain
What subdivision does the pulvinar belong to?
Diencephalon
What subdivision does the hippocampus belong to?
Cerebrum
What structures bound the interventricular foramen?
Thalamus posteriorly
Column of fornix anteromedially
