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ANTPH 222 First Assessment Test 22.١١.2008 Page 1 of 5
Please read each question carefully, then choose the correct answer out of the five choices:
1. :All are true concerning the nerve cell body EXCEPT
a) Have multiple dendrites.
b) Have a single axon.
c) Can divide and replace degenerating cells.
d) Rich in Nissl granules.
e) Rich in mitochonderia.
2. :All are true about synapse EXCEPT
a) Area of contact between two neurons.
b) The presynaptic cell is nerve terminal.
c) The postsynaptic cell contains synaptic vesicles.
d) Neurotransmitters are packed in synaptic vesicles.
e) The area between the presynaptic and postsynaptic membranes is called the
synaptic cleft.
3. Which of the following neuroglial cells responsible for maintenance of blood brain
?barrier
.a) Astrocytes
b) Ependymal cells.
c) Schwann cells.
d) Microglia.
e) Oligodendriglia.
4. :Microglia is
a) Smallest neuroglial cells.
b) Mesodermal in origin.
c) Migrating cells.
d) Phagcytic cells.
e) All of the above.
5. :The chemical gradient across the cell membrane
a) K move out of the cell against its gradient.
b) Na tends to pass to the cell along this gradient.
c) It is an active force of the cell membrane.
d) This process need energy.
e) All of the above.
6. :Regarding depolarization process
a) Trans -membrane potential might equal zero.
b) Means increased Na influx.
c) Resulted from increased intracellular positive charges.
d) Is a propagated process.
e) All of the above.
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2. ‫قال رسول ال صلى ال عليه و سلم ل من غشنا فليس منا‬
ANTPH 222 First Assessment Test 22.١١.2008 Page 2 of 5
7. :Neurtmodulators
a) Including nor adrenalin.
b) Not normally present in the body.
c) Released from the postsynaptic membrane.
d) Have no effect on the neurotransmitters.
e) None of the above.
8. (IPSPs (inhibitory postsynaptic potentials
a) result in local depolarization
.b) result in local hyperpolarization
.c) increase membrane permeability to sodium ions
.d) prevent the efflux of potassium ions
e) prevent the efflux of calcium ions
9. :In the spinal cord
.a) grey matter is peripheral in position
.b) Median fissure is posterior
.c) Median sulcus is anterior
.d) Spinal cord ends between L1&L2
.e) It’s length corresponds to the whole length of the vertebral column
10. A nucleus is
.a) a collection of neuron cell bodies with a common function
.b) a collection of neuron cell bodies with a discrete anatomical boundary
c) a bundle of axons that share common origins, destinations, and functions
.d) a large group of tracts in the spinal cord
.e) a series of centers and tracts that link brain with the rest of the body
11. The posterior gray horns of the spinal cord
a) contain sensory nuclei
b) contain somatic motor nuclei
c) contain autonomic motor nuclei
d) contain ganglia
e) contain receptors
12. The withdrawal reflex
a) Is a monosynaptic reflex
b) Involve single segment of the spinal cord
c) Different interneuron are encountered
d) Patellar reflex is an example of it
e) all of the above
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ANTPH 222 First Assessment Test 22.١١.2008 Page 3 of 5
13. The dorsal root of a spinal nerve contains
a) axons of motor neurons
.b) axons of sensory neurons
.c) cell bodies of motor neurons
.d) cell bodies of sensory neurons
.e) interneurons
14. ?The adult spinal cord extends to which vertebral level
a) Coccyx
b) Sacral
c) third or fourth lumbar
d) first or second lumbar
e) last thoracic
15. :Ganglion is
.(a) a collection of nerve fibers (axons
.b) A collection of neuron cell body
.c) A structure in the central nervous system
.d) Part of a tract
.e) All of the above
16. :All are true regarding Accessory nerve EXCEPT
a) Passing through foramen magnum
b) A pure motor nerve
c) Passing through jugular foramen
d) Contain spinal branch arising from c1 to c7
e) Supply sternomastoid muscle
17. :Aqueduct of sylvius
a) connecting the third and fourth ventricles
b) connecting the first and second ventricles
c) connecting both atria
d) containing lymph
e) none of the above
18. :Olfacrory nerve
a) relay in the thalamus.
b) Olfactory tract pass through the cribriform plate of the ethmoid.
c) Olfactory nerve passes to the cerebrum directely.
d) All of the above.
e) None of the above.
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ANTPH 222 First Assessment Test 22.١١.2008 Page 4 of 5
19. The diencephalon is formed of
.a) hypothalamus only
.b) Right and left thalami, hypothalamus ,epithalamus and infundibulum
.c) brain stem
.d) mesencephalon
e) Myelencephalon
20. The arterial supply of the brain is provided by the
a) external carotid arteries
b) internal carotid arteries
c) vertebral arteries
d) all of the above
e) both B and C
21. :The ventricle present between pons and cerebellum is called the
.a) lateral ventricle
.b) second ventricle
.c) mesencephalic aqueduct
.d) third ventricle
e) fourth ventricle
22. :All of these nerves pass through the superior orbital fissure EXCEPT
a) Oculomotor nerve.
b) Trochear nerve.
c) Abducens nerve.
d) Ophthalmic division of the trigeminal nerve.
e) Optic nerve.
23. :Ocular muscles are supplied by the following cranial nerves EXCEPT
a) Optic nerve.
b) Oculomotor nerve.
c) Trochear nerve.
d) Abducent nerve.
e) None of the above.
24. Transduction by the receptor is the
.a) opening of potassium channels and hyperpolarization
.b) detection of different stimuli
.c) translation of stimuli to action potentials that can be conducted to the CNS
.d) reduction in sensitivity in spite of the presence of a constant stimulus
.e) none of the above
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ANTPH 222 First Assessment Test 22.١١.2008 Page 5 of 5
25. :Medial and lateral pathway
a) are motor tract.
b) The medial pathway controls the gross movements.
c) The lateral pathway controls the precise movements.
d) Certain brain in the cerebrum, diencephalons, and brain stem are
encountered.
e) All of the above.
26. :Referred pain
a) Is abnormal sensation.
b) An individual can feel pain in uninjured part.
c) Visceral pain sensation arriving at a certain segment of the spinal cord can
stimulate the spinothalamic tract.
d) Pain in the left shoulder is associated with heart attack is an example of it.
e) All of the above.
27. :Motor commands are transmitted through
a) Spinocerebellar tract.
b) Lateral spinothalamic tract.
c) Anterior spinothalamic tract.
d) Pyramidal and extrapyramidal pathways.
e) All of the above
28. :Corticospinal pathway
a) It is part of the pyramidal system.
b) Lateral corticospinal includes the uncrossed fibers.
c) Anterior corticospinal includes the crossed fibers.
d) Corticobulbar supply the anterior horn cell of the spinal cord.
e) None of the above.
29. :Adaptation
a) Is a reduction of the sensitivity of the receptor after the disappearance of the
stimulus.
b) Is a reduction of the sensitivity of the receptor Inspit of the presence of a
constant stimulus.
c) Inhibition of the nuclei along the sensory pathway.
d) b and c.
e) A and c.
30. :Basal nuclei
a) Responsible for the control of anterior horn cell directly.
b) Control the upper motor neurons.
c) Monitors proprioceptives, visual and vestibular sensations.
d) All of the above.
e) None of the above.
Riyadh College of Dentistry and Pharmacy ‫كلية الرياض لطب السنان والصيدلة‬