Embryology (Embryonic and foetal developement)

Question 1

1. trimester

Answer 1

Formation of embryo with tissues & organs

Question 2

2. trimester

Answer 2

Developement of functional organs. (except the lungs)

Question 3

3. trimestre

Answer 3

Growth in size.

Question 4

soma cells

Answer 4

= body cells die with the death of an individual

Question 5

Gametes

Answer 5

sex cells ( or: germ cells) potentially immortal can be passed on to the next generation

Question 6

placenta

Answer 6

Decidue (mother) + Chorionic villi (fetus)

Question 7

What are the two main functions of the placenta?

Answer 7

1. Exchange of metabollic substances between mother and child
2. barrier for other substances

Question 8

What is the umbilical cord for?

Answer 8

connection between fetus and placenta

Question 9

What is FAS?

Answer 9

Fetal alcohol syndrome

Due to alcohol consummption during pregnancy, tissues of the embryo are damaged

• > underdevelopement of brain, heart, body
• > problems with health and behavior

Question 10

allantois

Answer 10

functions in waste disposal;

will become the umbilical cord

Question 11

amnion

Answer 11

protective fluid

Question 12

amniotic cavity

Answer 12

The fluid-filled cavity that surrounds the developing embryo.

Question 13

decidua / uterine lining

Answer 13

The inner layer of the uterus (womb); the cells that line the womb; anatomically termed the endometrium. This tissue is normally shed monthly in response to the hormonal changes of the menstrual period.

Question 15

maternal artery

Answer 15

o2 rich

Question 16

maternal vein

Answer 16

02 poor

Question 17

vena umbilicalis / umbilical vein

Answer 17

02 rich

Question 18

yolk sac

Answer 18

provide nourishment for the embryo at the earliest stages of development

nutrients

Question 19

2 deciduas & recognize them

Answer 19

decidua capsularis

decidua parietalis

Question 20

fallopian tube

Answer 20

a pair of tubes along which eggs travel from the ovaries to the uterus

Question 21

Mother gives

Child gives

Answer 21

Mother -> 02, H20, glucose, amnino acids, fats

CO2, urea, wast <- Child