Question

The human placenta is referred to as 

(a) chorioallantoic placenta 

(b) haemochorial placenta 

(c) Both (a) and (b) 

(d) None of these

Answer 1

Correct option: (c) Both (a) and (b) 

The human placenta is referred to as chorioallantoic placenta because chorion and allantois take part in the formation of placenta. The human placenta is also referred to as haemochorial placenta because in it uterine epithelium, uterine connective tissue and endothelium of maternal blood vessels are present.