Following events occur in the zygote formed in the week zero of development: Cleavage Approximately 24 hours after fertilization the zygote begins with the first…
Explore more Embryology Week 1: Cleavage to ImplantationAuthor: Epomedicine
Embryology Week 0: Gametogenesis, Ovulation and Fertilization
Gametogenesis – formation of gametes from primitive germ cells Spermatogenesis, begins at puberty and occurs in seminiferous tubules (spermiogenesis occurs in sertoli cells). One spermatogenesis takes an…
Explore more Embryology Week 0: Gametogenesis, Ovulation and FertilizationDural Reflections and Venous Sinuses
Dura mater (pachymenix) is the outer meningeal layer consisting of: Dural Reflections These are the infoldings formed by the inner meningeal layer reflecting away from…
Explore more Dural Reflections and Venous SinusesCircle of Willis and Forebrain Blood Supply
We have already discussed earlier on the intracranial course of Internal Carotid Artery (ICA) and Circle of Willis formation with the help of a simple…
Explore more Circle of Willis and Forebrain Blood SupplyBrodmann Areas and Lesions
Frontal Lobe Area 4 (Precentral gyrus): Primary motor cortex (gigantopyramidal – only area that contains giant pyramidal cells of Betz) Lesion: Contralateral spastic paralysis (UMNL)…
Explore more Brodmann Areas and LesionsInternal Capsule Simplified
Internal Capsule is a “boomerang” shaped (on horizontal section) and “funnel” shaped, i.e. tapering from superior to inferior (on sagittal section) white matter structure sandwiched…
Explore more Internal Capsule SimplifiedVisual Pathway : Supplement Knowledge
Everyone must be aware of the normal visual pathway and their defects. Here, I’ve tried to enlist the topics related to the visual pathway that…
Explore more Visual Pathway : Supplement KnowledgeRetinal Layers Simplified
The ten layers of retina – this microscopic anatomy is frequently asked in examinations and also important from the physiological viewpoint. There are plenty of…
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