Dr Gawad Physiology Course Online Exams - Lecture 3 Exam (Sympathetic Nervous System)

1. All the following about the sympathetic N.S. is true except:

Its stimulation causes urine retention.

It is involved in stress and emergency conditions.

It has a V.C. effect on skeletal muscle bld vessels.

Its stimulation increases the cardiac properties.

Drooping of the upper eyelid.

A small-sized pupil.

Exophthalmos

Inhibition of salivary gland secretion.

Decreasing the blood flow to the gut (GIT or alimentary canal).

Maintaining the heart rate within normal.

Keeping the fasting blood glucose level constant.

Maintenance of the systemic arterial blood pressure constant.

Causing bronchodilatation.

Increased gastric HCl and pepsin secretion.

Generalized actions affecting many systems.

Bronchoconstriction.

Decreased glycogenolysis and lipolysis.

Constriction of the pupil.

Erection of hair.

Secretion of sweat glands.

Dilatation of skeletal muscle blood vessels.

Spleen contraction.

Are found in somatic nerves (e.g. the median and ulnar nerves).

Form plexuses around blood vessels.

Are present in the short ciliary nerves.

Are non-medullated (non myelinated).

Are found in the greater splanchnic nerves.

It supplies every organ in the body.

It is involved more frequently in generalized actions.

It is of little importance in visual accommodation.

It may antagonize parasymp functions.