Response of Some effector Organ to Autonomic Activity

Efferctor Organ

Parasympathetic N.S.

Sympathetic N.S.

Receptors Function

Eyes•Radial M. of Iris•Sphincter M. of Iris•Ciliary M.

----•Contraction (Miosis)

•Contraction for Near vision

• 1α •Contraction (Mydriasis)•----

•----

Heart•S-A Node•Atria & Ventricle•AV Node & Purkinje

• H.R• Contractility• Conduction velocity

•β1•β1, 2β•β1, 2β

• H.R.• Contractility• Conduction Velocity

Efferctor Organ

Parasympathetic N.S.

Sympathetic N.S.

Receptors Function

Arterioles•Coronary

•Skin

•Skeletal M.

•Abdominal Viscera•Salivary Gland•Renal

•----

•----

•----

•----

•Dilation

•----

•α1, α2• 2β•α1, α2

•α1• 2,Mβ

•α1

•α1, α2

•α1

•Constriction•Dilatation•Constriction

•Constriction•Dilation

•Constriction

•Constriction

•Constriction

Efferctor Organ

Parasympathetic N.S.

Sympathetic N.S.

Receptors Function

Sytemic Veins •----- • 1, 2α α •Constriction

Lungs•Bronchial Muscle

•Contraction •β2 •Relaxation

Stomach•Motility & Tone•Sphincter•Secretion

•Relaxation•Stimulation

• 1, 2,α α β2

• 1α• 2α

•Contraction•Inhibition

Efferctor Organ

Parasympathetic N.S.

Sympathetic N.S.

Receptors Function

Intestine•Motility & Tone•Sphincter•Secretion

•Relaxation•Stimulation

• 1,α β

• 1α• 2α

•Contraction•Inhibition

Gallbladder •Contraction •β2 •Relaxation

Urinary Bladder•Detrusor•Sphincter

•Contraction•Relaxatation

•β2• 1α

•Relaxation•Contraction

Efferctor Organ

Parasympathetic N.S.

Sympathetic N.S.

Receptors Function

Uterus •Variable •α1

•β1

•Contraction (Pregnant)•Relaxation

Male sex organ

•Erection •α1 •Ejaculatation

Skin•Pilomotor M. •------ • 1α

•α1

•M

•Contraction•Slight, Localized secretion•Generalised, dilute abundant secretion

Efferctor Organ

Parasympathetic N.S.

Sympathetic N.S.

Receptors Function

Liver •----- •α1,β2 •Glycogenesis

Pancreas•Exocrine•Endocrine

• Secretion•---

•α1•α2

• Secretion•Inhibition of secretion

Salivary Gland

•Profuse watery secretion

•α1

•β

•Thick Viscous Secretion•Amylase Secretion

Lacrimal Glands

•Secretion •--- •---

Adipose Tissue

•---- •α2, β3 •Lipolysis

Adrenergic Receptorsα1 α2

•Vascular Sm. Muscles of skin & spalnchnic region•GI & Bladder Sphincter.•Radial Muscles of Iris.

•Wall of G.I.T•Platelet•Fat cells•Presynaptic N. terminal

β1 β2

•S.A. Node•A.V. Node•Atria, Ventricle

•Heart•Vacular Sm. Muscle of Heart & skeletal Muscle•Intestinal Muscle•Lungs, Bronchi•Bladder

Functions

α β•Vasoconstriction•Iris Dilation•Intestinal Relaxation•Intestinal sphincter contraction•Pilomotor Contraction•Bladder sphincter contraction

•Vasodilation•Cardioacclerelation•Increased Myocardial strength•Intestinal Relaxation•Bronchodilatation•Bladder wall Relaxation•Uterus Relaxation•Calorigenesis•Glycogenolysis•Lypolysis