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Fig. 7, 8. [[Carnegie Collection|Carnegie Embryo]] no.{{CE8172}} age group xviii Fig. 9, 10. [[Carnegie Collection|Carnegie Embryo]] no.{{CE7274}} age group xx

==Plate III Fig. 8. Normal human embryo No. {{CE256}} 16 mm long== | Embryo {{CE256}} was later classified as [[Carnegie stage 20]].

==Fig. 20-2. Head Superficial Vascular Plexus - Stages 20-23== ...showing the edge of the superficial vascular plexus in the head at stages 20-23.

==Fig. 4. Drawing of sections through the eye and optic nerve in Stage 20== Several sections in each embryo were combined to show the form and dimensions of the optic nerve. x50.

==Human Embryo Carnegie Stage 20== Appears to be an [[Carnegie stage 20|early Stage 20 embryo]].

==Human Embryo Carnegie Stage 11== Carnegie Collection Embryo No.6050

File:Streeter1957 fig08-19.jpg|[[Carnegie stage 19|stage 19]] (Embryo {{CE1390}}) File:Streeter1957 fig08-20.jpg|[[Carnegie stage 20|stage 20]] (Embryo {{CE6202}})

...cimens used are members of the respective age groups with the exception of embryo no. 86, which is slightly more advanced in bone-marrow formation and is not ...er1957 fig7-19.jpg|[[Carnegie stage 19]] ([[:Category:Carnegie Embryo 5609|Embryo 5609]])

| Fig. 8. Normal human embryo 16 mm. long (No. {{CE256}}). The head had been crushed in handling and the | Fig. 9, Sagittal section of a normal human embryo 7.5 mm. long (No. {{CE221}}).

...er1957 fig06-19.jpg|[[Carnegie stage 19]] ([[:Category:Carnegie Embryo 409|Embryo 409]]) ...er1957 fig06-20.jpg|[[Carnegie stage 20]] ([[:Category:Carnegie Embryo 462|Embryo 462]])

==Fig. 20. Sagittal section Embryo 15.5 mm long== Carnegie Embryo No. {{CE390}} x 18.

==Fig. 14 Diagram of the venous system of a 22 mm human embryo== {{Online Editor}} - This embryo could be either [[Carnegie stage 20]] or [[Carnegie stage 21]], both stages occur in [[Week 8]].

==Fig. 15 Reconstruction of the venous system of a 22 mm human embryo== {{Online Editor}} - This embryo could be either [[Carnegie stage 20]] or [[Carnegie stage 21]], both stages occur in [[Week 8]].

==Human Embryo (19.2 mm)== [[Carnegie stage 20]] [[Week 8]]

...aphic reconstruction of cricoid cartilage posterior veiw in human Carnegie Embryo 22== [[:Category:Carnegie Embryo 22|'''Embryo no. 22''']] (20 mm.) 3, anterior arch; J!^, posterior arch.

==Fig. 48. Human Heart (Carnegie stage 20)== The section is taken from a human embryo at [[Carnegie stage 20]], in the eighth week of development, just prior to closure of the embryoni

==Fig. 28. Graphic reconstruction of laryngeal cartilages in human Embryo no. 22== [[:Category:Carnegie Embryo 22|'''Embryo no. 22''']] 20 mm.) thy. hy., 1. thyreohyoid ligament.

==Fig. 39 Wax model of laryngeal region in human Embryo 22== [[:Category:Carnegie Embryo 22|'''Embryo no. 22''']] (20 mm.). (drawn from below)

...er1957 fig06-19.jpg|[[Carnegie stage 19]] ([[:Category:Carnegie Embryo 409|Embryo 409]]) ...er1957 fig06-20.jpg|[[Carnegie stage 20]] ([[:Category:Carnegie Embryo 462|Embryo 462]])

==Fig. 37 Wax model of laryngeal region in human Embryo 22== [[:Category:Carnegie Embryo 22|'''Embryo no. 22''']] (20 mm.). (seen from below)