Erection of penis occurs in which phase of sexual cycle?

Erection of penis occurs in which phase
of sexual cycle?
a) Excitement phase
b) Plateu phase
c) Orgasmic phase
d) Resolution
Correct Answer - A
Ans. A. Excitement phase
Ref Oxford textbook of psychiatry p.227]
Excitement phase
There is increased physiological excitement such as high BP and
heart rate.
There is erection of penis (in males) and swelling of clitoris & labia
minora (in females).
Testes swell, scrotum tightens
There is vaginal lubrication