Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

A&P II Test 3 > Growth And Development 1 > Flashcards

Growth And Development 1 Flashcards

1
Q

The day of birth marks the beginning of what period

A

Postnatal period

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

When the male sperm and female ovum unite

A

Fertilization

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

About how long does the prenatal period last

A

39 weeks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Science of the development of the offspring before birth

A

Embryology

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is a fertilized ovum

A

A zygote

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Where is the ovum fertilized

A

In the Fallopian tube or outter one third of the ova duct

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Milton division begins immediately and about three days after fertilization what is created?

A

Solid mass of cells called morula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Hollow ball of cells when the zygote reaches the uterus

A

Blastocysts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

After ten days, what happens with the embryo

A

It implants in the lining of the uterus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Two cavities of the blastocyst

A

Yolk sac and amniotic cavity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the function of the yolk sac in humans?

A

Produces red blood cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the function of the amniotic sac?

A

Bag of waters in which the embryo floats during development

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Develops into an important fetal membrane in the placenta

A

Chorion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Connects the blood vessels of the chorion to the rest of the placenta

A

Chorionic villi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Function of placenta

A

Anchors developing fetus to the fall of the uterus and provides a bridge for the exchange of nutrients and waste products between mother and baby

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

The placenta also serves as the

A

Respiratory and endocrine organ

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Maternal blood fills what part of the placenta

A

Lacunae of the placenta

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

The length of permanent or prenatal development is also called the

A

Gestation period

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

The gestation period is broken into 3 periods called

A

Trimesters

20
Q

Stage of development that extends from about the third week of gestation until week 8

A

Embryonic phase

21
Q

What term is used to define the developing offspring on the first trimester?

A

Embryo

22
Q

Stage from week 9 to week 39 after gestation

A

Fetal phase

23
Q

During the fetal stage, the baby is referred to as

A

The fetus

24
Q

Description of an embryo by day 35

A

Heart is beating, 8mm long, eyes and limb buds visible

25
Q

Description of a fetus at the end of the first trimester

A

7 to 8 cm, apparent facial features, complete limbs, gender identifiable

26
Q

Description of fetus by 4 months

A

All organ systems are complete and in place

27
Q

All of the cells are what at the very beginning of the embryonic stages?

A

Stem cells

28
Q

The three layers of stem cells developed early in the first trimester

A

Primary germ layers

29
Q

3 primary germ layers

A

Endoderm, ectoderm, and mesoderm

30
Q

What do the ectoderm skin cells produce?

A

Epidermis of skin, tooth enamel, lens and cornea of eye, outer ear, nasal cavity, facial bones, skeletal muscles in head, brain and spinal cord, sensory neuron’s

31
Q

What do the mesoderm stem cells develop into

A

Dermis of skin, circulatory system, many glands, kidneys, gonads, muscle, bones (except facial)

32
Q

Endoderm stem cells develop into

A

Lining of the gastrointestinal tract, linings of lungs, lining of hepatic and pancreatic ducts, kidney ducts and bladder, anterior pituitary gland, thymus gland, thyroid gland, parathyroid gland, tonsils, adrenal medulla

33
Q

Process of how the primary germ layers develop into many different types of tissues

A

Histogenesis

34
Q

The ways in which tissues form themselves into organs after Histogenesis is called

A

Organogenesis

35
Q

Developmental problems present at birth

A

Birth defects

36
Q

Environmental factors that cause birth defects

A

Teratogens

37
Q

Critical period of development for the central nervous system

A

Week 3-38

38
Q

Critical period for the development of the heart

A

Weeks 3-8

39
Q

Critical period for development for the upper limbs and lower limbs

A

Weeks 4-8

40
Q

Critical period for development for ears

A

Weeks 4-20ish

41
Q

Critical period for development for eyes

A

Weeks 4-38

42
Q

Critical period for development for teeth

A

Weeks 6-38

43
Q

Critical period for development for palate

A

Weeks 6-9

44
Q

Critical period for development for external genitalia

A

Weeks 7-38

45
Q

Day of birth marks the end of what period

A

Prenatal period

A&P II Test 3 (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions