Embryology Flashcards

1
Q

Stages of Organ Development

A

1) Cytogenesis
2) Histogenesis
3) Organogenesis

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2
Q

Layers Of Embryo

A

Ectoderm- outer layer
Mesoderm- middle layer
Endoderm- inner layer

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3
Q

Ectoderm consists of..

A

Brain
Spinal cord
Spine
Spinal Nerves

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4
Q

Mesoderm consists of..

A

Heart
Early circulatory system
Muscles
Kidneys
Reproductive system

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5
Q

Endoderm consists of..

A

Lungs
Intestines
Urinary bladder

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6
Q

First system to function in embryo..

A

Cardiovascular System

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7
Q

Heart beat starts at ____ embryonic age and ____ gestational age

A

22 days

36 days

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8
Q

Connection of embryo and yolk sac that developed SMA, IMA, CA

A

Vitelline artery complex

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9
Q

Fetal hindgut will..

A

Be herniated out and rotated 270 degrees.
Returning around 14 weeks gestational age

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10
Q

Cytogenesis is the …

A

Development of cells

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11
Q

Histogenesis is the formation of..

A

Cells to tissues

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12
Q

Organogenesis is the formation of..

A

tissues into organs

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13
Q

Embryo is classified as a fetus..

A

9 weeks post-conception (embryological age)

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14
Q

Postnatally the umbilical vein becomes the..

A

Ligamentum teres

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15
Q

Postnatally the ductus Venosus becomes the..

A

Ligamentum venosus

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