Abbreviation Key
		| 
			aarteryaaarteriesantanteriora-vatrio-ventricularCCervicalCoCoccygealCNCranial NerveDdiencephalic neuromere or diencephalondmdermatomyotomeinfinferiorintinternalLLumbarlatlateralltleft | 
			Mmesencephalic neuromere or mesencephalonmedmedialnnerveOOccipitalPprosencephalonpostposteriorprimprimordialRrhombencephalonRhrhombomerertrightSSacralTThoracicvveinvvveins | 
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			Carnegie Embryo #4090   |   Location: 3-15
		
	
		
	Keywords: cerebral aqueduct (mesocoele), commissure in roof plate of mesencephalon, fiber tract, floor plate, head mesenchyme, middle dural venous plexus, osteogenic layer, roof plate of metencephalon, subarachnoid space, surface ectoderm, trochlear nerve (CN IV)
	
	Source: The Virtual Human Embryo.