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Coding Terms > Coding 14 > Flashcards

Coding 14 Flashcards

1
Q

When does the embryo embed in the uterus?

A

The blastocyst stage

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2
Q

Does the brain form before birth?

A

No

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3
Q

What is the conceptuous?

A

The stage from the zygote to birth at 8-weeks it becomes the embryo

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4
Q

How does implantation occur?

A

When the embryo attatches to the uterus and burrows in the uterus epithelium

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5
Q

What is a trimester?

A

3-months of the process of birth development

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6
Q

What forms the sperm and egg (primordial germ cells)?

A

The posterior epiblast cells

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7
Q

What is the gonocyte?

A

When the primordial germ cells divide

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8
Q

What separates the follicles?

A

A mesenchymal called the theca

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9
Q

What is the primary follicle?

A

When the oogonium is coated in epithelium

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10
Q

When follicle cells divide what does that make?

A

Granulosa

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11
Q

What happens when the oocyte is coated by the epithelium?

A

Primary follicles and oocytes

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12
Q

What happens when the primary oocyte releases signal to continue dividing?

A

Makes the secondary follicles

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13
Q

What is the lutenizing hormone?

A

Stimulates oocyte division to become the secondary oocyte

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14
Q

What is the corpus leteum?

A

Follicle cells in the ovary that make progesterone

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15
Q

What does the sperm cytoplasm do?

A

Activates the egg cytoplasm

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16
Q

What does the embryo depend 3-days after fertilization?

A

Maternal effect genes

17
Q

When does MZT occur?

A

8-cell stage

18
Q

What is the endometrium?

A

The layer that is shedding during the menstrual cycle and it catches the embryo but also it is the inner layer of the uterus

19
Q

What is the bilaminar germ disc?

A

The inner cell mass that consists of the upper epiblast and lower hypoblast

20
Q

What does the epiblast make?

A

The amnion

21
Q

What does the hypoblast make?

A

The yolk sac

22
Q

What makes the placenta?

A

The mesoderm and the epiblast cells

23
Q

What is infertility?

A

It can occur in males where they lack healthy sperm or for females the egg fails to embed in the uterus

24
Q

What is pleiotropy?

A

The effect to the same tissue but different effects following mutations in the same gene

25
Q

What is genetic heterogeneity?

A

Similar phenotype by mutation to different genes

26
Q

What is phenotypic heterogeneity?

A

Same mutation can make a different phenotype

27
Q

What are tetrogens?

A

Exogenous agents that can cause congential anomolies

28
Q
A

Coding Terms (17 decks)

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