Catégories : Tous - secretion - heart

par ندى محمد Il y a 11 mois

64

Functions Of Parasympathetic Nervous System

The parasympathetic nervous system primarily focuses on promoting rest, digestion, and recovery functions within the body. In the head and neck region, it influences the facial nerve to stimulate lacrimal and nasal glands for secretion and vasodilation, and the glossopharyngeal nerve to enhance salivary gland activity.

Functions Of Parasympathetic Nervous System

Functions Of Parasympathetic Nervous System

Abdomen

Gall bladder
Secretory to the glands
motor to muscles

Thorax

Lung
increase bronchial secretion of pulmonary blood vessels.
Bronchoconstriction
Heart
↓ power of contraction
↓ conduction velocity through atrioventricular node
↓ heart rate
inhibition all cardiac properties

Pelvic nerve

Rectum
defecation
Bladder
micturation
Male genitalia
erection and egaculation
Female genitalia
erection of the clitoris

Head and Neck

Glossopharyngeal (IX) nerve
posterior third of the tongue VD
Facial (VII) nerve
Anterior 2/3 of the tongue (VD).
Lacrimal and nasal glands : secretion and VD.
Salivary glands : True secretion & VD
Oculomotor (III) nerve
Contractioin ciliary muscle

reduces intraocular pressure.

increase in power of the lens

pupilloconstriction