Human development

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7 Terms

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National Early Warning Scores (NEWS)

Respiratory rate.

Oxygen saturation.

Systolic blood pressure.

Pulse rate.

Level of consciousness or new confusion.

Temperature.

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Germinal. Conception to implantation.

Fertilization (conception) - Ovum (23 chromosomes) Spermatozoon (23 chromosomes).

Zygote (46 chromosomes).

Morula (16-32 cells).

Blastocyst (hollow ball of 70-100 cells).

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Differentiation

Blastocyst differentiates into inner cell mass and trophectoderm.

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Apposition and adhesion

Blastocyst orients and adheres to thr luminal epithelium.

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Invasion

Embryo penetrates luminal epithelium, entering a decidualizing endometrium.

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Interstitial implantation

The entire embryo is embedded, gaining access to maternal blood vessels.

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