pacchionian
Attributed to or described by Pacchioni.
arachnoid granulations
Tufted prolongations of pia-arachnoid, composed of numerous arachnoid villi that penetrate dural venous sinuses and effe (more...)
granular pits
Pits on the inner surface of the skull, along the course of the superior sagittal sinus, in which are lodged the arachno (more...)
pacchionian glands
Synonym: arachnoid granulations.
Pacchioni, Antonio
<person> Italian anatomist, 1665-1726.
pace
1. A single movement from one foot to the other in walking; a step.
pacefollower
Any cell in excitable tissue that responds to stimuli from a pacemaker.
pacemaker
1. <apparatus, physiology> An object or substance that influences the rate at which a certain phenomenon occurs, o (more...)
pacemaker, artificial
A device designed to stimulate, by electric impulses, contraction of the heart muscles. It may be temporary (external) o (more...)
pacemaker failure
Failure of an artificial pacemaker to generate or deliver effective stimuli to the myocardium.
