FOLD

n. Fold. Gr., wAeVos. L, ., plica. Fr., pli, repli. Ger., Falte. It., piega. Sp., pliegue. A doubling of anything upon itself. Amniotic f. Ger., Amnionfalte. A folded edge of the double amniotic membrane, where it rises over and finally incloses the embryo. [A, 5.] See Cephalic f.. Lateral /., and Caudal f.- Anterior amniotic f., Anterior f. of the blastoderm. See Cephalic f. Ant orbital f. See Anterior orbital CONVOLUTION. Arytaeno-epiglottic (or -epiglottidean) fs. Two f's of mucous membrane which inclose a few ligamentous and muscular fibres and the arytsenoid cartilages, extending from the tops of the latter and of the cornicula laryngis to the lateral margins of the epiglottis. [C.] Basirrhiiial f. See Basirrhinal GYRUS. Callosal f. See Callosal GYRUS. Caudal f. Fr., repli caudal. Ger.. Schwanzfalte. That f. of the blastoderm which incloses the caudal and primitive cloacal parts of the alimentary canal of the embryo. [A, 5.] Cephalic f. Fr, repli cephalique. Ger., Kopffalte. A f. of all the layers of the blastoderm, including also a part of the alimentary canal and the rudimentary heart. It pa es ventrad and caudad on each side. [A, 5.] Cerebral f's. The convolutions of the cerebrum, [a, 29.] Chorioidal f. See Chorioidal FISSURE. Ectofrontal f. Of Owen, an ill-defined region between his ectofrontal fi ure and the orbital fi ure. [I, 14.] Ectorbital f. See Posterior orbital CONVOLUTION. Ectorrhinal f. Of Owen, the area just laterad of the olfactory fi ure. (T. 14 (K).] Entolambdoidal f. Of Owen, the area of the cuneus between the occipital and super septal fi ures. [I, 14.] Ent orbital f. Fr., pli orbital interne. See Internal orbital CONVOLUTION. Ent or rhinal f. Fr., partie anterieure du grand marginal. See GYRUS rectus. Entosylvian f. See INSULA. Exoccipital f. The tip of the occipital lobe. [I, 14.] Falcial f. Fr.. partie anterieure du grand marginal. The portion of the callosal gyms that lies ventrad of the genu of the callosam. [1. 14.] F's of Douglas. See Recto-uterine U, blue; U3, lull; U, full; U, urn; U, like U (German). [s. 83]