Q. In infant, the process of defecation occurs by
A) Reflex action without voluntary control
B) Reflex action with voluntary control
C) Voluntary relaxation of external an sphincter
D) Involuntary relaxation of internal and sphincter
Explanation
In infants, defecation is not under voluntary control and it takes place by reflex actions, i.e., process of defecation occur by the reflex action without the voluntary control of external anal sphincter. Both involuntary and voluntary muscles are directed by brain
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.