Abbreviation Key
		| 
			aarteryaaarteriesantanteriora-vatrio-ventricularCCervicalCoCoccygealCNCranial NerveDdiencephalic neuromere or diencephalondmdermatomyotomeinfinferiorintinternalLLumbarlatlateralltleft | 
			Mmesencephalic neuromere or mesencephalonmedmedialnnerveOOccipitalPprosencephalonpostposteriorprimprimordialRrhombencephalonRhrhombomerertrightSSacralTThoracicvveinvvveins | 
		close
	 
	 
	
	
		![]() 
		 
		
		0 μm
	 
			
			Carnegie Embryo #4430   |   Location: 28-27
		
	
		
	Keywords: Co-1 ventral root, Co-2 ventral root, S-1 spinal ganglion, S-2 spinal ganglion, S-3 spinal ganglion, S-4 ventral root, S-5 ventral root, caudal edge of buttox region, central canal, interganglion region, subarachnoid space, surface ectoderm
	
	Source: The Virtual Human Embryo.