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Neurophysiology 6-8
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Questions in this quiz (40)
1When a specific sensory fiber is stimulated the perception is related to the type of fiber regardless of that stimulus type. This is called.
- AProprioception
- BLabeled Line Principle
- CReceptor specificity
- DSomatosensory distinction
2Pain fibers are classiified as....
- Aalpha A fibers
- BDelta A fibers
- Cgamma A fibers
- DC fibers
- EAlpha A and Delta A fibers
- FAlpha A and C fibers
- GDelta A fibers and C fibers
3What type of nerve fibers are unmyelinated and conduct impulses at low velocities?
- AA fibers
- BB fibers
- Calpha fibers
- DC fibers
4Which is not an example of a Mechanoreceptor.
- ATempature
- BMerkel's discs
- CRuffini's endings
- DMuscle spindles
- EGolgi tendon receptors
5Which is not a deep tissue sensibilities mechanoreceptor.
- ARuffini's endings
- BPacinian corpuscules
- CMuscle spindles
- DMeissner's corpuscules
- EGolgi tendon receptors
6In a muscle spindle, the contractile part is innervated by
- Agamma sensory neurons
- BType A gamma fibers
- Cgamma motor neurons
- DType C fibers
7What is not true about muscle spindles.
- AThey are called intrafusal fibers
- Bthe are considered stretch receptors whose function is to correct for changes in muscle length
- Cthey participate in the sensory and motor function
- Dthey detect muscle tension
8Golgi tendon organ inhibits
- Agamma motor neurons
- Balpha motor neurons
- Cmuscle relaxation
- Daction potentials
9What sensory receptors contain free nerve ending receptors?
- AThermoreceptors
- BNociceptors
- Cphotoreceptors
- Dmechanoreceptors
- Echemoreceptors
10What is not a way to stimulate receptors potential
- Amechanical deformation
- Bchemical application to the membrane
- Ctemperature change to the membrane
- Delectromagnetic radiation
- Econsistent pressure on a specific area
- Fall of the above are ways to stimulate a receptor potential
11Acuity depends on
- Asize and number of receptive fields and lateral inhabition
- BCutaneous overlap and two-point discrimination
- Cthe strength of a stimulus and how many nerves innervate the one
- Dthe precision of stimulus location
12The spinothalamic tract originates where?
- Aspine
- Bthalamus
- Ccerebral cortex
- Dcerebellum
13Pain is the conscious perception of the noxious stimulus so it needs what part of the CNS?
- Acerebral cortex
- Bcerebellum
- Cspin
- Dbrain stem
14A delta fibers are to _______ and C fibers are to _____.
- Afast pain, slow pain
- Bfast pain, deep pain
- Cdeep pain, slow pain
- Dslow pain, fast pain
15C fibers are associated with
- Aneedle stimulation
- Bpain reflex
- Cpotential tissue damage
- Dtissue destruction
16Sensory fibers enter via the ______.
- ADorsal horn
- BVentral horn
- CIntermediate root
- Dventral root
- Edorsal root
17What is a funiculi?
- ASensory nerve fibers
- Bbundles of fascicles
- Cdirect track line from the spine to the somatosensory cortex
- DNociception nerve fibers
18Why is loss of nociception a poor prognostic sign in animals with severe spinal cord lesions?
- AA lesion in the PNS will cause the inability for the animal to have the conscious perception of pain but there will still be a reflex
- BA lesion in the CNS will cause the inability for the animal to perform a reflex but there will still be the conscious perception of pain
- CNociception is a bilateral pathway and loss of nociception mean there is extensive destruction across the width of the cord
- Dspinal cord lesions are not poor prognostic signs in aminal it is possible to recover
19If an animal lacks the conscious perception of pain but is still able to perform the reflex where is the lesion located?
- APNS
- BCNS
20Type A delta fibers contain what type of receptors?
- AMechanical and Chemical
- BThermal and chemical
- CMechanical and thermal
- Dall 3; Mechanical, chemical and Thermal
21What neuron is believed to cause inhibition of incoming C and A-delta fibers where they synapse in the dorsal horns?
- AEndorphins
- BEnkephalin
- CEncephalin
- DEpinephrin
22How do Encephalins and endorphins act in the CNS to inhibit presynaptic neurons transmitting pain>
- AThey bind to ionotrophic opiate receptors
- BThey bind to GPCR opiate receptors
- CThey diffuse through the membrane and terminate pain directly
- DThe permanently bind to opiate receptors and inhibit encephalinergic interneurons
23Which of the following is not part of proprioception?
- AMuscle spindles
- Bgolgi tendon ogran
- CPacinian corpuscle
- DRuffini's ending
- Ehair cell receptors in the vestibular apparatus
- Fthe cochlea of the inner ear
- Gall of the above are involved in proprioception
24What 2 cranial nerves are used in propriception of the head, its muscles and joints?
- ACN 8 vestibuocochlear
- BCN 7 facial
- CCN 5trigeminal
- DCN 3 oculomotor
- ECN 10 vagus
- FCN 2 optic
25What part of the somatosensory cortex is used in conscious proception?
- Aipsilateral cerebellum
- Bcontralateral cerebellum
- Cipsilateral cerebrum
- Dcontralateral cerebrum
26To plan and refine volumtary, and learned movements ________ proprioception is used and it enables the _________ part of the brain.
- Aconscious; cerebral cortex
- Bsubconscious; cerebral cortex
- Cconscious; cerebellum
- Dsubconscious; cerebellum
27The vestibular system provides what type of proprioception?
- Aconscious
- Bsubconscious
- Cneither
- Dboth
28A dog comes into the clinic for "standing funny on his right forelimb." You perform an exam and notice he doesn't correct his paw when testing his paw position response. What nerve do you suspect is damaged and what type of proprioceptive deficit is most likely at play?
- AUlnar nerve; conscious
- BUlnar nerve; subconscious
- CRadial nerve; conscious
- DRadial nerve; subconscious
- EMedial nerve; conscious
- FMedial nerve; subconscious
29Nociceptors in the viscera do not have
- AC fibers
- BMechanoreceptors
- Ctemperature receptors
- DChemical receptors
30Physiological receptors in the viscera respond to innocuous stimuli
- ATrue
- BFalse
31What is not a function of the olfactory system?
- Alocalization of food
- Bdetection of danger
- Creflex stimulated secretion of digestive enzymes
- Dtaste perception
32What is the correct flow of the olfactory system?
- Aolfactory nerve fibers-> olfactory cells-> olfactory bulb
- Bolfactory cell-> olfactory nerve fibers-> olfactory bulb
- Colfactory nerve fibers-> olfactory bulb-> olfactory cells
- Dolfactory cell-> olfactory bulb> olfactory nerve fibers
33What type of neurons are the olfactory neurons?
- Apseudo-unipolar neurons
- Bbipolar neurons
- Cmultipolar neurons
- Dunipolar neurons
34Olfactory cells contain ___ on their apical side?
- Amicrovilli
- Bstereocilia
- Ccilia
35Which cranial nerve is apart of the olfactory tract
- A1
- B2
- C3
- D4
- E5
36What two cells are the specific cells of the olfactory bulb
- ATufted cells
- Bendo-turbinate cells
- Cmitral cells
- Dcuboidal cells
- Esquamous cells
- Fciliated cells
37Which system goes to the limbic system and not the thalamus first?
- AGustation system
- BVestibular system
- COlfactory system
- DVision system
38Which of the following tastes do dogs lack?
- AMeaty taste
- Bsweet taste
- Csalt taste
- Dsour taste
- EBitter taste
39Taste buds are composed of ______ cells with ______.
- Acolumnar; microvilli
- Bcuboidal; microvilli
- Ccolumnar; cilia
- Dcuboidal; cilia
40What two cranial nerves are apart of the gustation pathway?
- ACN 12 hypoglossal
- BCN 9 glossopharyngeal
- CCN 7 facial
- DCN 6 abducens
- ECN 5 trigeminal
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- Description
- Quiz on Neurophysiology 6-8, created by Shaye Antal on 28/06/2019.
- Author
- Shaye Antal
- Language
- English
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- 48
- History
- Created on 28 Jun 2019 · updated on 4 Jul 2019
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