Neurorad Flashcards
Connects the right and left cerebral hemispheres
Corpus callosum
Deep sulci of the cerebral cortex
Lateral and central sulcus
Connect corresponding areas of two hemispheres
Commisural fibers
Connect different parts of the cortex of the same hemisphere
Association fibers
Join the cortex to lower centers
Projection fibers
Length of corpus callosum
10cm
Fibers extending laterally from the body of the corpus callosum
Tapetum
Most common site of hemorrhage in preterm infants
Caudothalamic groove
Pituitary gland size
0.9 x 1.2 x 0.8 cm (CCxTxAP)
Efferent pathway from hippocampus to mamillary body
Fornix
CN
Midbrain
Pons
Medulla
III and IV
V, VI, VII and VIII
IX, X , XI and XII
Total volume of CSF
150ml
25 ml-spinal cord
Sickle shaped dural septum in the median sagittal plane attached to the crista galli
Falx cerebri
Horizontal fold of dura that almost completely covers the pituitary fossa
Diaphragma sellae
Horizontal septum of dura mater that separates the occipital lobes from the superior surface of the cerebellum
Tentorium cerebelli
Nerve supply of meninges
Supratentorial
Posterior fossa
Ophthalmic division of CN V
meningeal branches of IX and X
Blood supply of meninges
Middle meningeal artery
Separates the frontal from the parietal lobe. Separates primary motor with primary somatosensory
Central sulcus of Rolando
Separates frontal and parietal (superior) from temporal (inferior)
Sylvian Fissure(lateral sulcus)
Major part of the limbic system which has functions in emotion and behaviour
Cingulate gyrus
Refers to a pair of white matter tracts seen at the level of lateral ventricles
Corona radiata
Contains sensory fibers from the thalamus to the sensory cortex and motor fibers from the motor cortex to the motor nuclei in the brainstem
Internal capsule
Basal ganglia
Caudate nucleus
Putamen
Globus pallidus
Lentiform nucleus
Globus pallodus and putamen
Muscle memory
Putamen
Fine movements
Globus pallidus
MRI/CT
Seen at the level of the circle of willis
Midbrain
Most inferior part of the 4th ventricle
Obex
Narrow midline portion of the cerebellum
Vermis
Pineal gland calcification
10 y.o
Parts of the frontal, parietal and temporal lobes that overlie the insula
Operculum
Commisure anterior to pineal gland
Fibres from the olfactory center
Habenular commisure
Is a technique that uses diffusion tensor imaging to obtain images of fibre tracts within the brain
MR tractography
Ovoid mass of grey matter at the anterior end of the tail of the caudate nicleus and can be seen on MRI anterior to the hippocampus in the medial temporal lobe
Amygdala
Seen at the level of the circle of willis
Midbrain
A ridge on each sode pf the medulla
Pyramid
Oval bulge, lateral to thenpyramid
Olive
Joining the medullatonthe cerebellum
Restiform nucleus
