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Carnegie Stage Section
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L-4 spinal ganglion, L-5 / S-1 intervertebral disc, L-5 ventral primary ramus, S-1 / S-2 intervertebral region, S-1 ventral primary ramus, S-2 / S-3 intervertebral region, S-2 ventral primary ramus, ala of sacrum, alar plate(s), anal pit, basal plate, blastemata of flexor muscles in leg, central canal, dorsal surface of foot, foot plate, marginal vein, notochord, sacral plexus, sulcus limitans
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Carnegie Embryo #4430   |   Location: 27-21

Keywords: L-4 spinal ganglion, L-5 / S-1 intervertebral disc, L-5 ventral primary ramus, S-1 / S-2 intervertebral region, S-1 ventral primary ramus, S-2 / S-3 intervertebral region, S-2 ventral primary ramus, ala of sacrum, alar plate(s), anal pit, basal plate, blastemata of flexor muscles in leg, central canal, dorsal surface of foot, foot plate, marginal vein, notochord, sacral plexus, sulcus limitans

Source: The Virtual Human Embryo.