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Anatomy > Development > Flashcards

Development Flashcards

0
Q

Oogensis

A

Production of eggs

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1
Q

Spermatogenesis

A

Production of sperm

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2
Q

Meiosis

A

Half the N number and shuffle DNA

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3
Q

Morula

A

Ball of cells that reaches uterus

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4
Q

Blastula

A

Hollow tube of cells

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5
Q

Implantation

A

When embryo forms a placenta in uterus wall

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6
Q

Embryonic period

A

First 8 weeks ( before organs develop )

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7
Q

Organogenesis

A

Organs form in the embryo

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8
Q

Fetus

A

About 8 weeks

Looks like human

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9
Q

Prenatal

A

Changes before birth

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10
Q

Postnatal

A

Changes after birth

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11
Q

Fertilization

A

Union of egg and sperm
In upper third of uterine tube
Takes about 1 hr

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12
Q

Sperm penetrate eggs …

A

Corona radiate then zona pellucida

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13
Q

Fertilization membrane

A

Forms around egg to block out more sperm

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14
Q

Differentiation

A

Cells change and divide

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15
Q

Uterus lining

A

Endometrium

16
Q

Blastocyst

A

Ball of cells and implanted in uterus lining

17
Q

Endoderm

A

Germ layer forming the epithelial linings of the digestive tract respiratory tract urinary bladder and urethra

18
Q

Mesoderm

A

Germ layer forming all muscle tissue, bone, blood vessels, lymph vessels, connective tissue, reproductive organs, kidneys, and epithelial linings of the body cavities

19
Q

Ectoderm

A

Germ layer forming the nervous system, sensory organs, epidermis, hair, nails, skin glands, and linings of the mouth and anal canal

20
Q

Gastrulation

A

The primitive streak folds inward

21
Q

Neurulation

A

CNS forms

22
Q

Chorion villi

A

Fingerlike projections in the placenta into the endometrium

23
Q

Lacunae

A

Pools of maternal blood that the villi need for diffusion of nutrients

24
Q

Placental blood barrier

A

membrane that separates maternal and fetal blood

25
Q

Umbilical cord

A

Connects embryo to placenta

26
Q

Can survive without life support at ____ weeks

A

36

27
Q

Parturition

A

Birth process

28
Q

Increases in estrogen form these contractions

A

Braxton-Hicks

29
Q

Hormone that causes labor to begin

A

Oxytocin

30
Q

Labor

A

Fetus moves through birth canal

31
Q

Stages of labor

A
  1. Until cervix is dilated 10 cm
  2. Exit of fetus
  3. Placenta is pushed out
32
Q

Colostrum

A

First milk secreted that has antibodies to protect the baby

33
Q

Neonate

A

Newborn to 1yr

Rapid growth

34
Q

Childhood

A

2-10yrs
Learning stage
Fat deposits are lost

35
Q

Adulthood

A

Verticals growth stops

Metabolic rate decreases

36
Q

Senescence

A

Old age

65-75yrs

Anatomy (8 decks)

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