Midterm Quiz

Question 1

Fertilization to first two weeks

The zygote divides becomes more complex and is implanted in the wall of uterus

Answer 1

Germinal period

Question 2

36 hours after = ?

Answer 2

Rapid mitosis

Question 3

72 hours after = ?

Answer 3

16 - 32 - 64 cells

Question 4

Fluid - filled sphere

Consists of an inner mass of cells that will eventually develop into the embryo

Answer 4

Blastocyst

Question 5

2 main components of blastocyst

Answer 5

Inner Cell Mass

Trophoblast

Question 6

An outer layer of cells called the trophectoderm surrounds the ICM

Answer 6

Trophoblast

Question 7

Plays a crucial role in implantation and further development

Answer 7

Trophectoderm

Question 8

Also known as the embryoblast , this group of cells eventually gives rise to the embryo

Answer 8

Inner Cell Mass

Question 9

Upper layer, will become the outer layer of skin, the nails, teeth, sensory organs and nervous system

Answer 9

Ectoderm

Question 10

Inner layer, will become the digestive system,liver, pancreas, salivary gland and respiratory system

Answer 10

Endoderm

Question 11

Middle layer, will develop and differentiate into inner layer of skin , muscles, skeleton, and excretory & ciculatory systems

Answer 11

Mesoderm

Question 12

A thickened cell mass from which the embryo begins to develop

Answer 12

Embryonic Disc

Question 13

Blastocyst occurs an about between 6 to 12 days

Answer 13

Implantation

Question 14

An outer layer of cells provide nutrition & support to embryo

Answer 14

Trophoblast

Question 15

Fluid filled membrane that encase the developing embryo, protecting and giving it room to move and grow

Answer 15

Amnion cavity / amniotic sac / amnion

Question 16

Allows oxygen, nourishment, and wastes to pass between mother and embryo

Answer 16

Placenta

Question 17

Connect to the embryo contains two arteries and one vein, it connects the baby to the placenta

Answer 17

Umbilical cord

Question 18

Occurs 2 to 8 weeks after conception

Critical period

Stage were the brain development begins

Answer 18

Embryonic period

Question 19

Respiratory, digestive and nervous system develop rapidly through?

Answer 19

Organogenesis

Question 20

It is the name given to the process of organ formation during 1st 2 months of prenatal development

Answer 20

Organogenesis

Question 21

Miscarriage the expulsion from the uterus of an embryo fetus that is unable to survive outside the womb

Answer 21

Spontaneous Abortion

Question 22

8 weeks to birth

The appearance of first bone cell signals this stage

Answer 22

Fetal period

Question 23

Sex is detectable in how many months?

Answer 23

3 months after conception

Question 24

Mother can feel the fetus move quickening in what month?

Answer 24

Fourth month

Question 25

In this month Fetus is more active, showing a preference for a particular position in the womb lie i

Answer 25

Fifth month

Question 26

Thin, soft and poorly pigmented hair covers the body of the fetus

Answer 26

Lanugo

Question 27

At this month, the fetus has a chance of surviving outside the womb that is viable

Answer 27

Sixth month

Question 28

During this month the fetus has fully developed

Answer 28

Seventh month

Question 29

Movements are curtailed during this month and a layer of fat is developing to enable the fetus adjustments to the temperature outside the womb

Answer 29

8th months

Question 30

Comes from the greek word tera means monster

Is an environmental agents such as virus, drug, or a radiation that can interfere the normal prenatal development

Answer 30

Teratogen