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Explain the effects of the parasympathetic nervous system on cells of target organs.

Explain the effects of the parasympathetic nervous system on cells of target organs.

Science   Anatomy-And-Physiology   
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Answer #1

Parasympathetic nervous system has rest and digest response on the body organs.

In heart, it decreases heart rate and contractility.

In Gastrointestinal system, it increases muscle motility and tone.

In lacrimal gland it stimulates tear.

In Salivary glands it stimulates copius and watery secretion.

In Male genitalia it stimulates erection.

In females it causes vaginal lubrication.

In urinary bladder it stimulates the contraction of detrusor muscles.

It stimulates gall bladder.

In rectum it causes relaxation.

In trachea and bronchiole it stimulates vasoconstriction and increases secretions.

In eye it causes pupil constriction and contraction of ciliary muscles.

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