Venous_sinusWordNet Explorer

a wide channel containing blood; does not have the coating of an ordinary blood vessel

a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance

either of a pair of large venous sinuses in the cranial cavity

a short sinus receiving most of the veins of the heart; empties into the right atrium

an S-shaped dural sinus on the temporal and occipital bones

an unpaired sinus of the dura mater

a paired dural sinus; terminates in the sigmoid sinus