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Quiz by أطباء2020, created more than 1 year ago

Physiology

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physiology
أطباء2020
mid-term

	Created by أطباء2020 over 11 years ago

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2525549

quiz

2016-12-11T00:31:41Z

physiology mid-term

Each question in this quiz is timed.

Begin Quiz

Question 1 of 20

1

A 4-7 HZ rhythm normally occurs in:

Select one of the following:

Hypothalamus
Hippocampus
Parito-occipital area
Frontal area

Explanation

Question 2 of 20

1

all are true about RAS EXCEPT:

Select one of the following:

I essential for initiation & maintainence of consciousness
Is a complex polysynaptic system which extends from the brain stem to the spinal cord
Receives impulses from ascending sensory tracts
sends impulses to Non specific thalamic nuclei from which impulses are projected diffusely to all parts of the Cortex

Explanation

Question 3 of 20

1

Pleasure centers & punishment centers are located in :

Select one of the following:

Mammillary bodies
Limbic system
Precentral gyrus
Prefrontal gyrus

Explanation

Question 4 of 20

1

Hypothalamus protects the body against hypolycemia by:

Select one of the following:

Decrease insulin release
Increase glucagon release
Increase sympathetic activity & epinephrine release
Increase thyroxine release

Explanation

Question 5 of 20

1

what is true about memory :

Select one of the following:

Implict memory is the unconscious recall of information
Explicit memory is stored in basal ganglia and cerebellum
Sensory memory is the long term recall of information
Short term memory is due to protein synthesis

Explanation

Question 6 of 20

1

The normal range of IOP is:

Select one of the following:

5-20 mmHg
10-24 mmHg
15-30 mmHg
20-40 mmHg

Explanation

Question 7 of 20

1

Lens has high RI due to :

Select one of the following:

Highly curved posterior surface
It's transparency
High protein concentration in lens
It's avascular

Explanation

Question 8 of 20

1

Center of accommodation reflex is:

Select one of the following:

Edinger westiphal nucleus
Pretectal area of midbrain
Lateral Geniculate body
Superior colliculus

Explanation

Question 9 of 20

1

All the following causes Myopia EXCEPT:

Select one of the following:

Aphakia
Keratonous
Spasm of ciliary muscles
Lens dislocation

Explanation

Question 10 of 20

1

Pilocarpine causes miosis by:

Select one of the following:

Stimulates muscarinic receptors
Inhibits cholinesterase enzyme
Stimulates Edinger westiphal nucleus
None of above

Explanation

Question 11 of 20

1

What part of retina contains only cones and is the area of greatest visual acuity :

Select one of the following:

Ciliary body
Ora serrata
Fovea centralis
Optic disk

Explanation

Question 12 of 20

1

The round window is connected directly to which:

Select one of the following:

Scala tympani
External auditory meatus
Cochlear duct
Scala vestibuli

Explanation

Question 13 of 20

1

Which of the following is not a character of tympanic membrane:

Select one of the following:

Resonator
Amplifies sound vibration
Aperiodic
Damped

Explanation

Question 14 of 20

1

In middle ear:

Select one of the following:

Air limits the movement of the bony ossicles
Organ of corti overlies the basilar membrane
It is filled with endolymph
Air equalizes the pressure on the sides of the drum

Explanation

Question 15 of 20

1

Regarding olfaction :

Select one of the following:

Olfactory receptors are slowly adapting
The only sensation in the body not perceived in thalamus
Olfactory receptors are widely distributed in the nasal cavity
Olfactory receptors respond to stimulation is hyperpolarized

Explanation

Question 16 of 20

1

The lowest rate of plasma clearence is :

Select one of the following:

Creatinine
Glucose
Urea
Inulin

Explanation

Question 17 of 20

1

The glomerular filtration:

Select one of the following:

PH is not similar to plasma
Osmolality about 100
Its specific gravity is less than specific gravity of plasma
Is totally free from Protien

Explanation

Question 18 of 20

1

What is the primary disturbance seen in metabolic acidosis:

Select one of the following:

Increased Na
Increased K
Decreased HCo3
None of above

Explanation

Question 19 of 20

1

External sphincter opened during micturition by:

Select one of the following:

Hypogastric n. , excitation
Sacral parasympathetic n. , excitation
Pudendal n. , inhibition
Pudendal n. Excitation

Explanation

Question 20 of 20

1

The greater percentage of Na reabsorption in:

Select one of the following:

PCT
DCT
CT
Loop of henle

Explanation

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2525549

quiz

2016-12-11T00:31:41Z

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