UNSW Embryology Glossary Z

Link to the Original UNSW Embryology Glossary Z

zebrafish

fish model of vertebrate embryological development. Embryos ar translucent and large number of known (and manufactured) mutants. (More? Other Embryos - Zebrafish)

ZIFT

acronym for Zygote Intra Fallopian Transfer, a procedure in which eggs are collected from a woman's ovaries and fertilized outside her body. A laparoscope is then used to assist in placing the resulting zygote (fertilized egg) into the woman's uterine (fallopian) tube through small incisions in her abdomen. (More? Week 1 Notes - In Vitro Fertilization)

ZP1

acronym for Zona Pellucida Binding Protein, a glycoprotein found in zona pellucida surrounding the egg. (More? Week 1 - Fertilization | Week 1 - Oogenesis | [#zona_pellucida_binding_protein_1 zona pellucida binding protein 1])

ZP2

acronym for Zona Pellucida Binding Protein 2, a glycoprotein found in zona pellucida surrounding the egg. Before [F.htm#fertilization fertilization] ZP2 binds spermatozoa. After [F.htm#fertilization fertilization] ZP2 is proteolytically cleaved as an initial block to polyspermy. (More? Week 1 - Fertilization | Week 1 - Oogenesis | [#zona_pellucida_binding_protein_1 zona pellucida binding protein 1])

ZP3

acronym for Zona Pellucida Binding Protein 3, a glycoprotein found in zona pellucida surrounding the egg required for initial zona matrix formation and during [F.htm#fertilization fertilization] for species-specific sperm binding. Now thought to exist in 2 isoforms ZP3A and ZP3B (a second polymorphic allele). (More? Week 1 - Fertilization | Week 1 - Oogenesis | [#zona_pellucida_binding_protein_1 zona pellucida binding protein 1])

ZPBP1

acronym for Zona Pellucida Binding Protein 1 A spermatozoa protein found located on the acrosome surface. (More? Week 1 - Fertilization | Week 1 - Oogenesis | [#zona_pellucida_binding_protein_1 zona pellucida binding protein 1])

zona pellucida

(Latin, zona pellucida = transparent zone) A specialized [E.htm#extracellular_matrix extracellular matrix] surrounds the developing [O.htm#oocyte oocyte] (egg, ovum) within the ovary and follwing [O.htm#ovulation ovulation]. It consists of three types of glycoproteins [#ZP1 ZP1], [#ZP2 ZP2] and [#ZP3 ZP3] which have different roles in fertilization. Following fertilization, the zona pellucida also surrounds the blastocyst during the first week of development, from which it "hatches". The zona pellucida has a role in [F.htm#fertilization fertilization], sperm binding, preventing [P.htm#polyspermy polyspermy], [B.htm#blastocyst blastocyst] development and preventing premature implantation (ectopic pregnancy). (More? Week 1 - Fertilization | Week 1 - Oogenesis | [#zona_pellucida_binding_protein_1 zona pellucida binding protein])

zona pellucida binding protein 1

(ZPBP1) A spermatozoa protein found located on the acrosome surface which has a role during [S.htm#spermiogenesis spermiogenesis] (acrosome compaction, Sertoli-spermatid junctions) and also binds the zona pellucida during [F.htm#fertilization fertilization]. (More? Week 1 - Fertilization | Week 1 - Fertilization)

zoonotic disease

an animal disease that can be transmitted to humans. This can be through contact with animals (pets, farm animals, wildlife) or their products (milk, meat, waste). (More? Toxoplasmosis | [Q.htm#Qfever Q Fever])

zygote

The first diploid cell that forms following [F.htm#fertilization fertilization] by fusion of haploid [O.htm#oocyte oocyte] (egg) and [S.htm#spermatozoa spermatozoa] (sperm) resulting in the combination of their separate genomes. (More? Week 1 Notes)

zygote intrafallopian transfer

(ZIFT) A procedure in which eggs are collected from a woman's ovaries and fertilized outside her body. A laparoscope is then used to assist in placing the resulting zygote (fertilized egg) into the woman's uterine (fallopian) tube through small incisions in her abdomen. (More? Week 1 Notes - In Vitro Fertilization)

Comments

Use this page to access brief definitions of specific embryology terms. Additional information can be accessed from links listed at the end of each definition. Glossary from the UNSW Embryology program compiled and written by Dr Mark Hill. Reference Material used in preparing this glossary list includes: texts listed on page 1 Reading of each notes section, Department of Anatomy Publications, WWW resources from NCBI, NIH, OMIM, NHMRC (Australia), AMA (USA), Office of Rare Diseases (USA), PubMed Medline Dictionaries, MSDS, Merck Manual home edn.

These notes are for Educational Purposes Only Please email Dr Mark Hill if you wish to make a comment about this current project.

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