Placenta - System Functions and Types

Question 1

protection

Answer 1

placental system function:

• fluid cushion (skeletal system function)
• placental barrier (immune system function)

Question 2

nutrition

Answer 2

placental system function:
digestive system function;
supply of all energy, protein, fatty-acid precursors;
removal of waste products

Question 3

respiration

Answer 3

placental system function:
respiratory system function;
oxygenated blood / deoxygenated blood

Question 4

hormone production

Answer 4

placental system function:
endocrine system production;
chorionic gonadotropin (maintenance of pregnancy);
progesterone and estrogen

Question 5

diffuse

Answer 5

placental type:
covers entire surface of uterus
(pig & horse)

Question 6

cotyledonary

Answer 6

placental type:
special sites of attachment
(sheep & cow)

Question 7

discoid

Answer 7

placental type:
disk shaped site on one side
(humans & primates)

Question 8

zonary

Answer 8

placental type:
central “girdle” of cells
(dog & ferret)