It contains afferent and efferent fibres.
It contains parasympathetic pregang fibres.
It produces micturition.
It causes increased peristaltic movement of the intestinal wall.
Relaxation of the wall of rectum and contraction of the internal anal sphincter.
V.C. of the blood vessels in the external genitalia causing erection of penis.
Contraction of the bladder wall and relaxation of the internal urethral sphincter.
Contraction of smooth muscles in the male sexual passages causing ejaculation.
Relaxation of the external urethral and anal sphincters.
It is the nerve of erection (= nervus erigenes).
It is motor to the urinary bladder and distal half of the large intestine.
It is inhibitory to both the internal anal and urethral sphincters.
It has no postganglionic nerve fibres.
Are important in emergency conditions.
Play important functions in the skin and skeletal muscles.
Tend to have longer postganglionic fibres than pregang fibres.
Are catabolic in their actions.
Generally exert opposite effects to those of the sympathetic nerves.
V.D. in the cutaneous blood vessels.
Disturbance of sweat secretion.
Lack of erection of the penis in males and clitoris in females.
Relaxation of the internal anal and urethral sphincters.
V. C. and secretion.
V.D. and secretion.
V.D. and inhibition of secretion.
Secretion of scanty viscous saliva.
Acceleration of the heart.
Relaxation of the GIT wall
V.D. of coronary artery.
Dilatation of the pupil.
Contraction of the urinary bladder wall.