What Is The Classification Of Prosencephalon?
The prosencephalon comprises two parts – The primitive cerebral hemispheres making up the telencephalon The diencephalon is distinguished by an... View Article
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What Are The 4 Groups Of Sensory Relay Nuclei Which The Alar Plate Contains?
The Alar plate has 4 groups of sensory relay nuclei – General visceral afferent group – receives interoceptive information from... View Article
What Are Basal, Alar Plates?
Due to the continuous addition of neuroblasts to the mantle layer, each side of the neural tube exhibits a dorsal... View Article
What Are The Derivatives Of Neural Crests?
Cells found at the lateral border or at the crest of the neuroectoderm start dissociating from their neighbours when the... View Article
Why Are Amphibians A Convenient System For Studying Vertebrate Development?
Amphibians are a convenient system for studying vertebrate development for the following reasons – They undergo external development They are... View Article
What Happens In Gastrulation?
It is an important phase in the development of multicellular entities. Some important things happen during this phase, which are... View Article
Where Does Spina Bifida Occur?
When the lower end of the neural tubes does not close, spina bifida occurs. As a result, backbones and the... View Article
What Is Differential Compartmentalization Of Oocyte Cytoplasm?
If the cytoplasm of a fertilized egg in some way is compartmentalized, then the process of cleavage gives rise to... View Article
How Is The Neural Tube Formed?
Through neurulation, neural plates form the neural tube. Towards the termination of the third week, the lateral edges of neural... View Article
What Is Anencephaly?
Anencephaly is a fatal state wherein the upper end of the neural tube does not close. In such cases, the... View Article
What Are The Steps Of Neurulation?
Neurulation takes place in different ways in various regions of the body. The tail, trunk and head form the region... View Article
What Is The Importance Of Neurulation?
Neurulation is the process by which neural plates become neural tubes. This process takes place at an early stage in... View Article
What Happens If Meninges Get Damaged?
Meninges refers to membranous coverings of the spinal cord and the brain. Meninges constitute these layers – dura mater, pia... View Article
What Is Neurulation?
Neurulation is the process by which neural plates become neural tubes. This process takes place at an early stage in... View Article
What Is Saltatory Conduction?
Myelin sheath insulates axons against depolarization forcing action potential to take place in nodes of Ranvier between myelin sheaths. Myelin... View Article
If We Open A Sodium Channel, Give Two Reasons Why Positive Sodium Ions Flow Through The Membrane Into The Cell?
Positive Na+ ions flow through the membrane into cells for two reasons in this case – Resting potential keeps the... View Article
How Can Brain Connectivity Be Studied?
Brain connectivity corresponds to a pattern of anatomical inks of statistical dependencies or interactions in a nervous system between different... View Article
How Is Brain Haemodynamics Expressed?
Brain haemodynamics often is expressed in terms of 3 quantities – Cerebral blood volume (CBV) Cerebral blood flow (CBF) Cerebral... View Article
Why Is Damage To The Circle Of Willis Often Clinically Insignificant?
Circle of Willis are vascular structures surrounding the brain stem throwing off main vessels which supply the cerebral hemispheres. As... View Article
What Tissue Membranes Form Meninges?
Meninges have the following tissue membranes – Dura mater – composed of thick fibrous tissue Pia mater – thin membrane... View Article
