Hen'le's ampul'la

[Fried rich Gustav Jakob Henle, German anatomist, 1809-1885.] A dilatation of the vas deferens a short distance above the ejaculatory duct. H.'s band, fibers of the anterior aponeurosis of the transversal is abdominis which sometimes pa behind the rectus below the semilunar fold of Douglas. H.'s cells, large granular cells with small nuclei in the tubuli seminiferi. H.'s fenes'trated mem'brane, the layer of elastic fibers of the tunica intima of an artery. H.'s fi'brin, fibrin formed in the spermatic fluid on admixture with water. H.'s fis's ures, minute spaces filled with connective ti ue between the muscular fasciculi of the heart. H.'s glands, tubular glands in the palpebral conjunctiva. H.'s layer, the outer layer of cells of the inner root-sheath of the hair-follicle. H.'s lig'ament, the inner portion of the conjoined tendon in cases in which this structure is divisible into two parts. H.'s loop, the reversal of direction of the uriniferous tubule near the apex of a medullary pyramid of the kidney. H.'s memTirane, Bruch 's membrane, lamina* basal is. H.'s reac'- tion, dark brown staining of the medullary cells of the adrenal bodies when treated with the salts of chromium, the cortical cells remaining unstained. H.'s sheath, endoneurium. H.'s spine, spina supra meatum, a small bony prominence anterior to the supra mastoid fo a, at the upper and posterior border of the bony meatus auditor i us. H.'s tuTjules, the straight portions of the uriniferous tubules which form H.'s loop, distinguished as the descending and ascending tubules of Henle.