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Anatomy > Embyology > Flashcards

Embyology Flashcards

1
Q

What goes through more development before final form, sperm or egg?

A

Sperm

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2
Q

Starting point of sperm and egg

A

Spermatogonium and oogonium

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3
Q

Result of meiosis in spermatogenesis and oogenesis

A

4 sperms

1 ovum, 3 polar bodies

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4
Q

Progression through early cell division

A

Zygote
Blastocyst
Morula

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5
Q

3 cell layers formed by week 3 of development

A

Ectoderm
Mesoderm
Endoderm

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6
Q

Outer lining of cells of blastocyst

A

Trophoblast

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7
Q

3 parts that mesoderm divides into

A

Paraxial mesoderm
Intermediate plate mesoderm
Lateral plate mesoderm

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8
Q

What is derived from ectoderm?

A

Epidermis of skin

Neural tube

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9
Q

What is derived from endoderm?

A

Gut

Respiratory

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10
Q

What is derived from paraxial mesoderm?

A

Dermis of skin
Muscles
Bones

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11
Q

What is derived from intermediate plate mesoderm?

A

Urogenital system

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12
Q

What is derived from lateral plate mesoderm?

A

Peritoneum
Pleura
Cavities

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13
Q

What structure is respiratory system derived from?

A

Foregut

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14
Q

What structure is visceral pleura derived from?

A

Splanchnic layer of lateral plate mesoderm

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15
Q

What structure is parietal pleura derived from?

A

Somatic layer of lateral plate mesoderm

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16
Q

Development of diaphragm

A

4 mesodermal structures

Septum transversum
Pleuroperitoneal folds
Skeletal muscle ingrowth
Dorsal mesentery of oesophagus

17
Q

What are heart tubes formed from?

A

Lateral plate splanchnic mesoderm

18
Q

What layers of pericardium are formed from somatic mesoderm?

A

Parietal layer of serous pericardium

Fibrous pericardium

19
Q

What layer of pericardium is formed from splanchnic mesoderm?

A

Visceral layer of serous pericardium

Anatomy (4 decks)

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