Question

Differentiate between the menstrual cycle and oestrus cycle.

Answer 1

	Menstrual Cycle	Oestrous Cycle
1.	Occurs in primates such as man, apes	Occurs in non-primates, such as dogs and cats
2.	Endometrium of the uterus is destroyed and comes out during bleeding	Endometrium of the uterus absorbed in the body
3.	Consists of folicular, ovulatory, proliferative, and menstrual phases	Consists of oestrous and anoestrous phases
4.	Sexual urge is not affected by menstrual phase	Sexual urge is increased during oestrous phase
5.	Bleeding occurs during menstrual phase	No bleeding is seen