Embryology (Embryonic and foetal developement) Flashcards Preview

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Flashcards in Embryology (Embryonic and foetal developement) Deck (21):
1

1. trimester

Formation of embryo with tissues & organs

2

2. trimester

Developement of functional organs. (except the lungs)

3

3. trimestre

Growth in size.

4

soma cells

= body cells die with the death of an individual

5

Gametes

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

6

placenta

Decidue (mother) + Chorionic villi (fetus)

7

What are the two main functions of the placenta?

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

8

What is the umbilical cord for?

connection between fetus and placenta

9

What is FAS?

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

10

allantois

functions in waste disposal;

will become the umbilical cord

11

amnion

protective fluid

12

amniotic cavity

The fluid-filled cavity that surrounds the developing embryo.

13

decidua / uterine lining

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.

14

15

maternal artery

o2 rich

16

maternal vein

02 poor

17

vena umbilicalis / umbilical vein

02 rich

18

yolk sac

provide nourishment for the embryo at the earliest stages of development

nutrients

19

2 deciduas & recognize them

decidua capsularis

 

decidua parietalis

20

fallopian tube

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

A image thumb
21

Mother gives

Child gives

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

CO2, urea, wast   Child