Midterm

Question 1

Germinal

Answer 1

Conception to 2 weeks, lasts until zygote becomes implanted.

Question 2

Embryonic

Answer 2

3-8 weeks, implantation to cell division, cell migration, cell differentiation, and cell death

Question 3

Fetal

Answer 3

9 week to birth.

Question 4

Conception

Answer 4

Gametes combine

Question 5

Zygote

Answer 5

Fertilized egg cell

Question 6

Embryo

Answer 6

development 3-8 weeks

Question 7

Fetus

Answer 7

Developing 9th week to birth

Question 8

Cell Development

Answer 8

Mitosis, Cell migration, cell differentiation, apoptosis

Question 9

Mitosis

Answer 9

Cell division splits in two identical daughter cells

Question 10

Apoptosis

Answer 10

Genetically programmed cell death.

ex. finger development

Question 11

4th day of conception

Answer 11

Development of inner mass cells (twins start to develop)

Question 12

General tendency

Answer 12

cephalocaudal development (head first, hand/foot last)

Question 13

4 weeks

Answer 13

• face begins to emerge
• heart is visible and functioning
• arm bud visible, leg bud less distinct

Question 14

5.5 week

Answer 14

nose, mouth, and palate start to differentiate

Question 15

8.5 week

Answer 15

nose and mouth fully formed

Clef Palate

Question 16

9 week

Answer 16

• Eyes/ears form
• internal organs present
• sexual differentiation
• ribs, fingers, toes and nails

Question 17

11 week

Answer 17

• Adult shaped heart

- developing spine and brain divisions

Question 18

16 week

Answer 18

• Kicks

- External genitalia (gender reveal)

Question 19

18 week

Answer 19

Sucking thumb

Question 20

20 week

Answer 20

• Facial expressions

- weight gain (less movement)

Question 21

28 week

Answer 21

• Brain/lungs sufficiently develop (survive premature birth)
• REM sleep
• auditory system functioning