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From Embryology

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Blastula to tail bud stages

(AP) Animal pole.

(BR 1) First branchial cleft. (BR 2) Second branchial cleft. (BR 4) Fourth branchial cleft. (DLBP) Dorsal blastopore lip. (GA) Gill anlage. (GP) Gill plate.

(GR) Germ ring.

(HMCL) Hyomandibular cleft. (LNF) Lateral neural fold. (MP) Medullary plate. (MY) Myotome. (NG) Neural groove. (OP) Optic vesicle.

OS) Oral sucker.

(PRN) Pronephric region. (SP) Sense plate. (TNF) Transverse neural fold. (VP) Vegetal pole. (VLBP) Ventral blastopore lip. (YP) Yolk plug.

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Pages where the terms "Historic" (textbooks, papers, people, recommendations) appear on this site, and sections within pages where this disclaimer appears, indicate that the content and scientific understanding are specific to the time of publication. This means that while some scientific descriptions are still accurate, the terminology and interpretation of the developmental mechanisms reflect the understanding at the time of original publication and those of the preceding periods, these terms, interpretations and recommendations may not reflect our current scientific understanding.     (More? Embryology History | Historic Embryology Papers)
Frog Development (1951): 1 Introduction | 2 Rana pipiens | 3 Reproductive System | 4 Fertilization | 5 Cleavage | 6 Blastulation | 7 Gastrulation | 8 Neurulation | 9 Early Embryo Changes | 10 Later Embryo or Larva | 11 Ectodermal Derivatives | 12 Endodermal Derivatives | 13 Mesodermal Derivatives | 14 Summary of Organ Appearance | 15 Glossary | 16 Bibliography | Figures


Rugh R. Book - The Frog Its Reproduction and Development. (1951) The Blakiston Company.

Cite this page: Hill, M.A. (2024, May 30) Embryology Rugh 067.jpg. Retrieved from

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