The four neurons conducting visual impulses to the visual cortex are - Bipolar neurons - connects the cones and rods to the ganglion cells... View Article
The optic tract arises from optic chiasma passing posterolaterally through the cerebral peduncle. Each tract has Fibres emerging from the... View Article
The unmyelinated axons of ganglion cells accumulate at the optic disk, exiting the eye as the optic nerve. It pierces the sclera in regions known... View Article
The olfactory tract is a narrowband of white matter running from the posterior end of the olfactory bulb under the inferior surface of the... View Article
Neural tube defect or NTDs are of two types - Open - these are more common and often involves the whole CNS with the neural tissues that are... View Article
The prosencephalon comprises two parts - The primitive cerebral hemispheres making up the telencephalon The diencephalon is distinguished by... View Article
The Alar plate has 4 groups of sensory relay nuclei - General visceral afferent group - receives interoceptive information from heart and... View Article
Due to the continuous addition of neuroblasts to the mantle layer, each side of the neural tube exhibits a dorsal and ventral thickening. The... View Article
Cells found at the lateral border or at the crest of the neuroectoderm start dissociating from their neighbours when the neural folds fuse and... View Article
Amphibians are a convenient system for studying vertebrate development for the following reasons - They undergo external development They... View Article
When the lower end of the neural tubes does not close, spina bifida occurs. As a result, backbones and the spinal cord do not properly develop. A... View Article
If the cytoplasm of a fertilized egg in some way is compartmentalized, then the process of cleavage gives rise to differential 'parcelling-out'... View Article
Through neurulation, neural plates form the neural tube. Towards the termination of the third week, the lateral edges of neural plates increase... View Article
Anencephaly is a fatal state wherein the upper end of the neural tube does not close. In such cases, the brain either is totally absent or never... View Article
Neurulation takes place in different ways in various regions of the body. The tail, trunk and head form the region of the neural tube in ways... View Article
Neurulation is the process by which neural plates become neural tubes. This process takes place at an early stage in embryonic development. In... View Article
Meninges refers to membranous coverings of the spinal cord and the brain. Meninges constitute these layers - dura mater, pia mater, arachnoid... View Article
