Mini Mid1 (CNS)

1. Sympathetic neurons originate from

Thoracic (1-12)

Sacral (2-4)

Lumbar (1-3)

A&C

C&B

2. All the skin of the face is supplied by trigeminal veinthis statement is

True

False

3. Duct of parotid gland pierce which one of the following muscles

Orbicularis oculi

Sternomastoid muscle

Buccinator muscle

Orbicularis oris

4. The false one about Parasympathetic functions is

Defeacation

Diuresis

Digestion

Exophthalmos

5. All the following are activities of the sympathetic system except

Mydrasis

Vasoconstriction to coronaries

Inhibitory to smooth muscles of git , bronchi , urinary bladder , gall bladder

Ejaculation of semen

6. The centre of somatic reflex arc is ...... And the receptor of the autonomic reflex arc is .....

Anterior Horn cell , skin

Lateral horn cell , skin

Lateral horn cell , viscus

Anterior horn cell , viscus

7. All of the following muscles share in the boundaries or the floor of the posterior triangle except

Scalenus medius

Sternothyroid

Trapizius

Levator scapulae

8. Sympathatic nervous system affect both male and female sexual organes ; this statement is

True

False

9. Diaphragma sellae is pierced by one of the tributaries of cavernous sinuses

True

False

10. Orbelli phenomenon occurs due to

Exophthalmos

Glycogenolysis

Erection of piloerector muscle

Vasoconstriction of skeletal muscles blood vessels

11. All of the following are not correct about external jugular vein except

It is the only tributary of subclavin vein

It descend deep to sternomastoid muscle

Anterior facial vein is one of its tributaries

Dangerous site of external jugular vein is about 1cm above the clavical

12. All of the following are correct about adrenal medulla except

It is the only sympathatic organ that is supplied directly by preganglionic fiber

During stress it increases the secretion of adrenalin and nor adrenalin

The neurons , supply it secrete acetyl choline in the synaptic cleft

Non of them

13. Collateral ganglia is the site of relay for the preganglionic fibers which are always very long

True

False

14. Each cavernous sinus communicate with all the following except

Other covernous sinus

Pharyngeal plexus

External jugular vein

Facial vein

15. All of the following are correct about facial artery except

It is a branch of external jugular artery

Angular artery is one of its branches

Has tortous course and run obliquely in the face

Facial artery is lateral to faciel vein

16. All the following includes effects of the valgus nerve except

Motor to GIT smooth muscles

Secretory to liver

Myosis

Inhibition of heart properties

17. Concerning catecholamines ; the true statement is

Include substance P

Ca+ influx stimulates their exocytosis at the synaptic cleft

Include acetylcholine

Act as mediators or hormones*

18. Acetylcholine is secreted in all the following sites (except)

Autonomic ganglia

Between postganglionic and GIT Smooth muscles membrane

MEP

Between postganglionic and sweat glands membrane

19. VMA is

The enzyme that catalyzes methyl group

The metabolite product of epinephrine

The Enzyme that deaminate monoamine

Non of the above

20. One come with a deep cut in his side of the neck" It's a very dangerous site as it contains all the following except "

External jugular vein

Subcalvian blood vessels

Retromandibular vein

Occipital artery

21. One of the following is not correct about connective tissue layer of the scalp excepet

It is highly vascular so it is the most dangerouse layer

It is the second layer of the scalp from outside and the 4th from inside

Bleeding of this layer may lead to black eye

Contain occipitofrontalis muscle