"The crus cerebri (cerebral crus) usually refers to the most anterior, semilunar shaped bundle of white matter fibres in the midbrain, including the corticospinal tract centrally (3/5 intermediates) as well as the corticopontine (fronto-pontine and temporo-pontine fibres) and corticobulbar tracts. Posterior to the crus cerebri is the substantia nigra, followed by the mesencephalic tegmentum."
"The basis pedunculi or crusta traditionally refers to the combination of the crus cerebri and substantia nigra 3, but has also been used synonymously with the crus cerebri 2."
"The basis pedunculi or crusta traditionally refers to the combination of the crus cerebri and substantia nigra 3, but has also been used synonymously with the crus cerebri 2."
Expected headings
"Arterial supply"
"There is mixed and variable arterial supply to the crura. Small branches arising from the posterior cerebral, superior cerebellar and basilar arteries all contribute 3."