Quiz
physio cycle 2.2
Questions in this quiz (44)
14. Tapping of patellar elicits reflex contraction of quadriceps muscle, Which of following precedes contraction of quadriceps femoris?
- AIa afferents from quadriceps muscle spindle increase their rate of
- BIb afferents from Golgi tendon organ increase their rate of firing
- Calpha-motor neurons innervating extradural muscle fibers increase their rate of firing
- Dgamma-motor neurons innervate intrafusal muscle increase their rate of firing
- EThe alpha-motoneurons to the antagonist muscles increase their rate of firing
25. Which of following are elements of reflex arc of the inverse stretch reflex?
- AInhibitory interneuron of the spinal cord
- BGamma motor neuron innervate extrafusal skeletal muscle cells
- CGolgi tendon organ
- DIb sensory fiber from the annulospiral ending e9
- EAlpha-motor neuron innervate extrafusal skeletal muscle cells
- FC fiber collecting input from the muscle spindle
- GSensory protoneuron of the dorsal root ganglion collecting input from type La sensory fiber
32.EEG , normal healthy human
- Aalfa- awake with eyes closed, relaxing
- Bbeta – awake, aroused with eyes open
- Cgamma – focus attention on something
- Ddelta - sleep
- Eteta - sleep
4-6. Cerebellar dysfunctions
- Aresting tremor
- Bignition tremor
- CIntention tremor
- Dataxia
- Eadiadkinesia, didiadokin
- Fmuscle aphnemia
513.Which basal ganglia form the corpus striatum
- Asubthalamic nuclei
- Bglobus pallidus (int.part)
- Cputamen
- Dsubstantia nigra
- Ecaudate nucleus
615. Defect of right geniculocalcarine tract result in decrease visual acuity in?
- Atemporal half of left retina
- Btemporal half of right retina
- Cnasal half of right retina
- Dnasal half of left retina
- Eboth half of hemis retina
72. EEG in normal healthy awake adults:
- AAlpha
- BDelta
- CBeta
- DTheta
- EGamma
85. Defects of right geniculocalcarine tract (left optic radiation)?
- ATemporal half of left retina
- BTemporal half of right retina
- CNasal half of left retina
- DNasal half of right retina
- EBoth half of hemis retina
97. What is the main function of Granule cells of cerebellar cortex?
- AThey excite Purkinje cells via their parallel fibers
- BThey excite Golgi and Stellate cells via their parallel fibers
- CThey excite Purkinje cells via their mossy fibers
- DThey excite Golgi and Stellate cells via their mossy fibers
- EThey inhibit Purkinje, Basket, Golgi and Stellate cells via their parallel fibers
- FThey inhibit deep cerebellar nuclei via their mossy fibers
1010. Primary sensory cortex:
- ADetects specific sensory cortex, input of the peripheral organs
- BAnalyzes of specific sensory input
- CLocated in postcentral gyrus of Parietal lobe
- DLocated in Cingulate gyrus
1111. Afferent pathways of Spinal cord:
- AAnterior and lateral spinothalamic tract pass through ventral posterolateral nuclei of thalamus
- BAll afferent pathways are crossed by corticospinal tract
- CSpinothalamic tract conduct exteroceptive, proprioceptive and teleoceptive sensation
- DSecond neuron can be located in spinal cord of Medulla oblongata
12-14. What is true about muscle stretch receptors?
- AThe flower ending formed by Ia fibers -
- BThe annulospiral ending formed by Ib fibers
- CThe annulospiral ending is formed by Ia fibers
- DThe golgi tendon organ has primary plate ending formed by Ib fibers
13-15. Purkinje cells?
- AExcitatory climbing fibers
- BRelease neurotransmitter
- CRelease GABA as neurotransmitter
- DRelease GABA and Glycine as neurotransmitter
- EInhibitory.... (missing rest of question)
14-17. Phototransduction – in correct order:
a. Retinal configuration from less energetic cis configuration to more energetic trans-configuration
b. Hyperpolarization
c. Closure of Na+ channels dependent on cGMP
d. Opening of Na+ channels dependent on cGMP
e. Activation of transducin
f. Reduced concentration of cGMP- Aa, c, e, f, d
- Ba, e, f, c, b
- Ca, f, e, c, b
- Da, e, f, b, c
15Emmetropia correction?
- ACorrection: concave lens
- BCorrection: convex lens
- CCorrection: cylindrical lens
- DNo correction needed
16Hyperopia correction?
- ACorrection: concave lens
- BCorrection: convex lens
- CCorrection: cylindrical lens
- DNo correction needed
17Myopia correction?
- ACorrection: concave lens
- BCorrection: convex lens
- CCorrection: cylindrical lens
- DNo correction needed
18Astigmatism correction?
- ACorrection: concave lens
- BCorrection: convex lens
- CCorrection: cylindrical lens
- DNo correction needed
1920) True statement
- AA. Bone conduction compared to air conduction in Rinne-test
- BB. Sound conduction is heard louder in defect ear in Weber-test
- CC. Bone conduction is the main sound conduction
- DSound frequency ranges between 6Hz – 10KHz
2021. Hair cells are located in:
- AA. Middle ear
- BB. Crista of semicircular canals
- CC. Basilar membrane of organ of Corti
- DD: Scala tympani
2124. What is true about paccinian corpsules?
- AA. They are rapidly adapting
- BB. They are slow adapting
- CC. They cover large area of the skin
- DD. They cover short area of the skin
2227. Slow superficial pain:
- AA. Is not transmitted to Cerebral cortex
- BB. Transmitted by unmyelinated C-fibers
- CC. Is “bright” and easy to locate
- DD. Is “gated” by Spinal cord
- EE. Is modulated by interneurons of gelatinous substance in the posterior horn
231. Which of following statements concerning antinociceptive system of the dorsal ... are true:
- Atactile cutaneous stimulation conducted by A beta fibers inhibits pain, conducted by C fibers
- Bproprioceptive stimulation conducted by A gamma fibers inhibits fast pain conducted by A ...fibers
- Cpresynaptic inhibition of pain is performed by descending hyperpolarizing on 2nd order
- Dtactile cutaneous stimulation conducted by C fibers inhibits pain, conducted by A beta-fibers
242. Identify right statements concerning pain pathways:
- Afast pain fibers of the spinal cord liberate excitatory neurotransmitter glutamate
- Bmost of slow pain fibers finish in reticular formation, rectal area and perpendicular grey region
- Cupon entering the spinal cord fast and slow pain fibers synapse with the same population of neurons
- Dpaleospinothalamic tract transmits impulses concerning quality, intensity and location of pain
253. Nociception is NOT conducted by:
- Alateral spinothalamic tract
- Bsame pathway as the sense of vibration and fine, precise touch
- Csame pathway pathway as the input from thermoreceptors
- Danterior spinothalamic tract
264. Tapping of patellar tendon elicit a reflex contraction of the quadriceps muscle. Which of the following precedes the contraction of the quadriceps femoris
- AIa afferents from the quadriceps muscle spindle increase their rate of firing
- BIb afferent from the Golgi tendon organ increase their ring of firing
- Cα-motoneurons (alpha) innervating the extrafusal muscle fibers increase their rate of firing
- Dγ-motoneurons(gamma) innervating the intrafusal muscle fibers increase their rate of firing
- Eα-motoneurons to the antagonistic muscles increase their rate of firing
275. Which of the following are elements of the reflex arc of the inverse-stretch reflex?
- AInhibitory interneuron of the spinal cord
- BGamma motor neuron innervating extrafusal skeletal muscle cells
- CGolgi tendon organ
- DIb sensory fiber from the annulospiral ending
- EAlpha-motor neuron innervating extrafusal skeletal muscle cells
- FC fiber collecting input from the muscle spindle
- GSensory protoneuron of the dorsal root ganglion collecting input from type Ia sensory fiber
286. Pyramidal pathways are essential for which of following activities:
- ASpeech and writing
- Brespiratory movements of a diaphragm and intercostal muscles
- CMotor activities performed with hands and fingers such as taping keyboards
- Ddiadochokinesia
- Ekinesthesia and stereo agnosia
297. Gracile fasciculus pathway is composed of:
- Aa. Neurons in posterior horn of the spinal cord
- Bb. Dorsal root ganglion cell
- Cc. Neurons in nucleus gracilis
- Dd. Neurons in ventral (posterolateral??) nuclei of thalamus
- Ee. Neurons in postcentral gyrus of the cerebral cortex
308. Lesion of precentral gyrus of the left frontal lobe of the dominant hemisphere leads to:
- AInability to perform voluntary movements
- BFluent aphasia
- CLoss of coordination of movements
- DSpastic tone of the contralateral skeletal muscles due to damage of the upper neuron of the pyramidal tract
319.Which of the following sentences describe properly fasciculus gracilis:
- Ait collects sensory input from lower part of the body
- Bit collect sensory input from upper part of the body
- Cconducts impulses from muscle spindles + Golgi tendon organs
- Dit conveys crude (light) tough and temperature sense
- Eit conveys fine (discriminative) touch and vibration sense
- FSecond-order neuron is located in medulla oblongata
- GSecond order neuron is located in posterior horn of the spinal cord -
3210. Identify statements concerning lateral corticospinal tract
- Ait innervates bilaterally axial muscles (muscles proximal to the trunk)
- Bit crosses the midline in pyramidal decussation
- Cfirst order neurons of the pathways synapse in nucleus rubber
- Dit reduces the muscular tone of flexors
3311. Describe properly the characteristics of the spinothalamic tract:
- Ait is 2 neuron sensory tract that is localized in anterolateral neural pathways system
- Bit is a 3-neuron sensory tract that is localized in dorsal columns of the spinal cord
- Cit conveys sensation modalities such as ticide and itch, temperature, light touch and pressure
- Dit passes to the contralateral CNS side on the level of the medulla oblongata
- Eit terminates finally in the somatosensory cortex
3412. Indicate correct statements concerning Purkinje cells of cerebellar cortex:
- Aliberate GABA producing inhibitory effect to neurons of deep cerebellar nuclei
- Bthey project excitatory output to basket and stellate cells through GABAc receptor
- CThey are excited by glutamate liberated by axon terminals of climbing fibers and parallel fibers
- Dthey are directly activated by mossy fibers
- Eproject excitatory axons converging on deep cerebellar nuclei
3513. Which statements are right?
- AClimbing fiber input exerts a strong excitatory effect on single Purkinje cell
- BBasket cells project to deep cerebellar nuclei
- CMossy fibers come from all possible sources except for inferior olivary nuclei
- DMossy fibers come from inferior olivary nuclei -
3614. Identify right statements concerning cerebellar function:
- ADamage of the flocculonodular lobe lead to nystagmus
- BInput from cerebro-porto-cerebellar pathways enters dentate nucleus of vestibulocerebellum
- CAnterior cerebellospinal tract distribute proper rate and strength of muscle cells to postural muscles
- DDamage of the cerebellum results with discoordination of all movements (ataxia)
3715. Which of the following are direct effects of action of gamma motoneurons?
- Aa) stimulate extrafusal muscle fibers to contract
- Bb) help maintaining activity of Ia afferent during contraction
- Cc) stimulate activity in Ib afferent fibers
- Dd) detect the length of resting skeletal muscles
- Ee) produce contraction of the nuclear bag and nuclear chain fibers
3818. Identify right statements concerning the ß- rhythm appearing on an EEG recording
- Aappears when a patient's eyes open
- Bforms sleep spindles of the EEG recording
- Cecorded during NREM sleep of healthy adults
- Drepresents activity that is the most specific for the frontal region of the conscious brain
3919. Identify correct statements concerning hyperopia (farsightedness):
- ANear point of vision can be located 1 meter from the eye
- BIt is related to increased focal length of the eyeball
- Cit is corrected by concave lenses
- DNear objects are focused on retina while far objects not
4020. Right LGN (lateral geniculate nucleus) is entered by input from:
- ATemporal half of the left retina
- BTemporal half of the right retina
- CNasal half of the left retina
- DNasal half of the tight retina
- EBoth left hemiretinas (left of both retinas)
4121. In conductive loss of hearing (conductive deafness) of right ear
- AIn Weber's test, sound is heard louder by the right ear
- BRinne's test of the right ear is positive
- CPatient's hearing of the right ear is longer than the examiner's in Schwabach's test
- DAir conduction of the right ear is better bone conduction
4222. Which of the following statements concerning Visual acuity are NOT true:
- AIs tested by Snellen letter chart
- Bis normal when eye is able to discriminate details separated by a visual angle of 5 minutes of arc (1 minute of arc = 1/60 degree)
- Cit depends on defects of focusing
- Ddepends on the state of rods
4323. Rhodopsin is:
- AComposed of transducin and photopsin
- Bthe G-protein of cones
- CThe serpentine receptor coupled with G-protein, which activates enzyme PDE
- DIt is a ligand gated channel similar to muscarinic receptor
- EMetabotropic receptor located on free floating discs of the outer segment of rods
445. Identify right statement concerning the alpha-rhythm appearing in EEG:
- AIt is present in awake patients with eyes open
- BMade up by low frequency high amplitude waves frequency is 8-13 Hz
- Cit forms sleep spindle of EEG
- DIt is typically recorded in occipital lobe (or similar)
- ETypical rhythm of frontal lobe are in unconscious and conscious person
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- physio cycle 2
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- Elisabeth Haasen
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- English
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