We suggest you get a piece of paper and pencil and jot down your answers. Click Here For Answer 1. Click Here For Answer 4. Vascular anastamosis between the twinns permits the acardiac fetus to survive and grow. Click Here For Answer 7.
Lesions are asymmetrical.
Click Here For Answer 13. Holoprosencephaly spectrum of disorders resulting from absent or incomplete cleavage of the forebrain or prosencephalon during early embryonic development, depending on severity, condition is classified as alobar, semilobar, lobar. Alobar - single ventricular cavity, fusion of thalami, absent corpus callosum, falx cerebri, optic tracts and olfactory bulbs. Semilobar - cerebral hemispheres are separated posteriorly, with absent corpus callosum. Lobar - most of the structures are seperated, with varying degree of fusion of lateral ventricles, and absent cavum septum pellucidi.