2525549
Questão 1
Questão
A 4-7 HZ rhythm normally occurs in:
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Hypothalamus
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Hippocampus
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Parito-occipital area
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Frontal area
Questão 2
Questão
all are true about RAS EXCEPT:
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I essential for initiation & maintainence of consciousness
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Is a complex polysynaptic system which extends from the brain stem to the spinal cord
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Receives impulses from ascending sensory tracts
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sends impulses to Non specific thalamic nuclei from which impulses are projected diffusely to all parts of the Cortex
Questão 3
Questão
Pleasure centers & punishment centers are located in :
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Mammillary bodies
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Limbic system
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Precentral gyrus
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Prefrontal gyrus
Questão 4
Questão
Hypothalamus protects the body against hypolycemia by:
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Decrease insulin release
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Increase glucagon release
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Increase sympathetic activity & epinephrine release
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Increase thyroxine release
Questão 5
Questão
what is true about memory :
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Implict memory is the unconscious recall of information
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Explicit memory is stored in basal ganglia and cerebellum
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Sensory memory is the long term recall of information
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Short term memory is due to protein synthesis
Questão 6
Questão
The normal range of IOP is:
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5-20 mmHg
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10-24 mmHg
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15-30 mmHg
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20-40 mmHg
Questão 7
Questão
Lens has high RI due to :
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Highly curved posterior surface
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It's transparency
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High protein concentration in lens
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It's avascular
Questão 8
Questão
Center of accommodation reflex is:
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Edinger westiphal nucleus
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Pretectal area of midbrain
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Lateral Geniculate body
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Superior colliculus
Questão 9
Questão
All the following causes Myopia EXCEPT:
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Aphakia
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Keratonous
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Spasm of ciliary muscles
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Lens dislocation
Questão 10
Questão
Pilocarpine causes miosis by:
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Stimulates muscarinic receptors
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Inhibits cholinesterase enzyme
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Stimulates Edinger westiphal nucleus
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None of above
Questão 11
Questão
What part of retina contains only cones and is the area of greatest visual acuity :
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Ciliary body
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Ora serrata
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Fovea centralis
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Optic disk
Questão 12
Questão
The round window is connected directly to which:
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Scala tympani
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External auditory meatus
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Cochlear duct
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Scala vestibuli
Questão 13
Questão
Which of the following is not a character of tympanic membrane:
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Resonator
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Amplifies sound vibration
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Aperiodic
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Damped
Questão 14
Questão
In middle ear:
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Air limits the movement of the bony ossicles
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Organ of corti overlies the basilar membrane
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It is filled with endolymph
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Air equalizes the pressure on the sides of the drum
Questão 15
Questão
Regarding olfaction :
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Olfactory receptors are slowly adapting
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The only sensation in the body not perceived in thalamus
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Olfactory receptors are widely distributed in the nasal cavity
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Olfactory receptors respond to stimulation is hyperpolarized
Questão 16
Questão
The lowest rate of plasma clearence is :
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Creatinine
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Glucose
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Urea
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Inulin
Questão 17
Questão
The glomerular filtration:
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PH is not similar to plasma
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Osmolality about 100
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Its specific gravity is less than specific gravity of plasma
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Is totally free from Protien
Questão 18
Questão
What is the primary disturbance seen in metabolic acidosis:
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Increased Na
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Increased K
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Decreased HCo3
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None of above
Questão 19
Questão
External sphincter opened during micturition by:
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Hypogastric n. , excitation
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Sacral parasympathetic n. , excitation
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Pudendal n. , inhibition
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Pudendal n. Excitation
Questão 20
Questão
The greater percentage of Na reabsorption in:
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PCT
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DCT
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CT
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Loop of henle
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