Also found in: Dictionary, Thesaurus, Encyclopedia.
several fibrous cords crossing the superior sagittal sinus.
Synonym(s): chordae willisii
Wil·lis cords(wil'is kōrdz)
Several fibrous cords crossing the superior sagittal sinus.
Willis,Thomas, English physician, 1621-1675.
accessorius willisii - nerve that arises by two sets of roots: cranial, emerging from the side of the medulla, and spinal, emerging from the ventrolateral part of the first five cervical segments of the spinal cord. Synonym(s): accessory nerve
chordae willisii - Synonym(s): Willis cords
circle of Willis - an anastomotic circle of arteries at the base of the brain. Synonym(s): arterial circle of cerebrum
Willis centrum nervosum - the largest and highest group of prevertebral sympathetic ganglia, located on the superior part of the abdominal aorta. Synonym(s): celiac ganglia
Willis cords - several fibrous cords crossing the superior sagittal sinus. Synonym(s): chordae willisii
Willis pancreas - a portion of the head of the pancreas formed by the superior mesenteric artery and abdominal aorta. Synonym(s): uncinate process of pancreas
Willis paracusis - the apparent increase in auditory acuity of a deaf person to conversation in noisy surroundings due to a companion's unconscious voice raising. Synonym(s): false paracusis
Willis pouch - obsolete term for lesser omentum.