Halima Mahmoud
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Halima Mahmoud
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MATH TEST 2010

Question 1 of 18

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1. Visual acuity:

Select one or more of the following:

  • a) Is greatest in yellow spot​

  • b) Is detected in myopia

  • c) Is detected in astigmatism

  • can be determined by seller letter chart

Explanation

Question 2 of 18

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​2. Neurons of the visual pathway are (mind the order

Select one or more of the following:

  • a) Photosensitive cells

  • b) Bipolar cells

  • c) Ganglioncells

  • d) Cells of the medial geniculate body of thalamus

  • e) Purkinje cells

  • f) Cells of the lateral geniculate body of thalamus

  • g) Neurons of the visual cortex (Brodmann's area 17)

Explanation

Question 3 of 18

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-3. ​Right​ optic radiation defect results in:

Select one or more of the following:

  • a) Only from right retina

  • b) Both right retinas

  • c) Nasal half of left retina

  • d) Temporal half of right retina

Explanation

Question 4 of 18

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-8. Which sentence is right?

Select one or more of the following:

  • a) Bone conduction of sound is compared to air conduction in Rinne test

  • ) Sound is heard “louder” in diseased ear in conduction in Weber test

  • c) The main type of sound conduction is bone conduction

  • d) The sound frequency audible in humans ranges from abouts 6 Hz to 20 Hz -

Explanation

Question 5 of 18

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hair cells are located

Select one or more of the following:

  • a) On tubular membrane of the organ of corti

  • b) In middle ear

  • c) semicircular canals

  • d) In scala tympani

Explanation

Question 6 of 18

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10. Which statements are ​right​?

Select one or more of the following:

  • a) Vestibular nystagmus can ​not​ be evoked in healthy individuals

  • b) Direction of post-rotatory nystagmus is opposite to direction of former movement

  • c) ... of relation maintaining visual function in vestibulo-ocular reflex

  • d) ... of relation maintaining visual function in vertigo

Explanation

Question 7 of 18

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-11. ​Which statements are right?

Select one or more of the following:

  • a) Hair cells in utricle and saccule respond to circular (rotational) acceleration

  • b) Hair cells in utricle and saccule respond to linear deceleration

  • c) Semicircular canals respond to linear acceleration

  • d) Semicircular canals respond to circular deceleration

Explanation

Question 8 of 18

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-12​.​ Sherrington division:

Select one or more of the following:

  • a) Exteroceptive

  • b) Epicritic

  • c) Interoceptive

  • d) Proprioceptive

  • e) Protopraxic

Explanation

Question 9 of 18

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-13​.​ ​Pacinian corpuscle are characterized with:

Select one or more of the following:

  • a) Small receptive field size​

  • b) Large receptive field size

  • C) rapidly adapting characteristics

  • d) Slowly adapting characteristics​

Explanation

Question 10 of 18

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-16. Which statements are correct?

Select one or more of the following:

  • a) Climbing fiber inputs exert strong excitatory effect on single Purkinje
    cell

  • b) Mossy fiber inputs exert a weak excitatory effect on many Purkinje cells via granule cells

  • C) Climbing fibers come from inferior olivary nucleus

  • d) Basket cells project to deep cerebellar nuclei

Explanation

Question 11 of 18

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18. Symptoms of ​cerebellar​ defects are:

Select one or more of the following:

  • a) Resting tremors

  • b) Intention tremors

  • c) Ataxia ​

  • d) Adiadkinesia​

  • e) Aphasia

Explanation

Question 12 of 18

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-19. Nociceptiva stimuli produces:

Select one or more of the following:

  • a) Ipsilateral flexor reflex

  • b) Ipsilateral extensor reflex

  • c) Contralateralflexorreflex

  • d) Contralateral extensor reflex

Explanation

Question 13 of 18

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-20​.​ Receptors of pain are

Select one or more of the following:

  • a) Unimodal receptors located on Aδ-fibers

  • b) Polymodal receptors located on C-fibers

  • c) UnimodalreceptorslocatedonB-fibers

  • d) Polimodal receptors located on Aγ-fibers

Explanation

Question 14 of 18

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-21​.​ Sharp, superficial pain;

Select one or more of the following:

  • a) Is not transmitted to the cerebral cortex ​

  • b) Is transmitted by unmyelinated C-fibers

  • c) Is “bright”, easily located pain, transmitted by Aδ-fibres

  • d) Is not modulated

Explanation

Question 15 of 18

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22. Nociception;

Select one or more of the following:

  • a) Is conducted thorough lateral spinothalamic tract

  • b) Can be modulated in thalamus and cerebral cortex

  • c) Is intensified by neurons of substantia gelatinosa (SG)

  • d) Can be gated (inhibited) by non-nociceptive sensory fibers in posterior horn

Explanation

Question 16 of 18

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-23. Which statements are right?

Select one or more of the following:

  • a) Stretch reflex is a polysynaptic reflex

  • b) Stretch reflex is a monosynaptic reflex

  • c) Stretch reflex is released by Golgi tendon organ

  • d) Stretch reflex is a defensive, withdrawal reflex

Explanation

Question 17 of 18

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24. Sensation released to ​afferent​ pathways of the spinal cord

Select one or more of the following:

  • a) All pathways from spinal cord to cerebral cortex pass through VPL

  • b) They conduct exteroceptive, proprioceptive and teleceptive sensation

  • c) Afferent pathway of the spinal cord is by crossed corticospinal tract

  • d) Their 2nd neuron can be located in spinal cord or spinal medulla​

Explanation

Question 18 of 18

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-25. ​Alfa​-motor neurons are:

Select one or more of the following:

  • a) Innervating both intrafusal and extrafusal muscle cells

  • b) Located in cerebellum and substantia nigra

  • c) Fast,thick,myelinatedAα-fibers

  • d) Located in anterior horn of the spinal cord

Explanation