Growth of Foetus and Placenta

Question 1

Whats the top of the head called?

Answer 1

Vertex

Question 2

What is lenght of pregnancy?

Answer 2

266 days/ 38 weeks after fertilisaton

280 days/ 40 weeks after last period

Question 3

what happens in mth3?

Answer 3

facial development
limb development
external genitalia development

Question 4

What happens in mth 4/5?

Answer 4

fetus lengthens rapidly

Question 5

what happens in mth 5?

Answer 5

movements felt

Question 6

What happens in mth 7?

Answer 6

round contours

Question 7

When ae most babies born?

Answer 7

within 10-14 days of DOB estimate

Question 8

what is the chance of survival if born @ 6mths or earleir?

Answer 8

10%

Question 9

What is the chance of survival if born after 6.5mths?

Answer 9

90%

Question 10

What is referred to as the foetal period?

Answer 10

From 9th week to birth

Question 11

What event happens in week 3?

Answer 11

Formation of villus capillary system, connecting the placenta and the embryo

Question 12

What is the function of the maternal venule?

Answer 12

Take blood away from placenta

Question 13

What is the function of maternal arteriole?

Answer 13

Supply blood to placenta

Question 14

What happens at intervillus spaces?

Answer 14

Exchange between maternal and foetal blood

Question 15

What makes up the placenta?

Answer 15

Chorion frondosum

Decidua Basalis

Question 16

How is the mature amniotic cavity formed?

Answer 16

1. Decidua capsularis and decidua parietalis fuse

2. Amnion and chorion fuse

Question 17

What forms divisions in placenta?

Answer 17

Decidua septa @ mth4-5

Question 18

What are the placenta divisons called?

Answer 18

cotyledons

Question 19

Give characteristics of placenta

Answer 19

Discoid shape
15-25cm in diameter
3cm thick
500-600g

Question 20

What is the function of the placenta?

Answer 20

Exchange of gases
Exchange of nutrients and electrolytes
Transmission of maternal antibodies
Hormone production