21. THE ASSOCIATION CORTEX IN THE PARIETAL LOBE PLAYS A ROLE IN: A) auditory ana

Question

21. THE ASSOCIATION CORTEX IN THE PARIETAL LOBE PLAYS A ROLE IN: A) auditory analysis B) s y analysis C) planning movements D) visual analysis 22. THE ASSOCIATION CORTEX IN THE OCCIPITAL LOBE PLAYS A A) auditory analysis ROLE IN: B) somatosensory analysis C) planning movements D) visual analysis 23THE ASSOCIATION CORTEX IN THE TEMPORAL LOBE PLAYS A ROLE IN; A) auditory analysis B) somatosensory analysis C) planning movements D) visual analysis 24. DRUGS AFFECT THE BEHAVIOR A) at all tissues that they come in contact with B) only at the places where they are administered C) only at their sites of actions D) by altering the functions of all organs 25. THE HALF-LIFE OF A DRUG IS THE TIME IT TAKES TO A) clear half of a drug dose from the blood compartment B) clear half of a drug dose from the fat C) elear half of a drug dose from the brain compartment D) clear half of a drug dose from the liver 26. LDS0EDS0 IS THE A) lethal ratio B) therapeutic index C) lethal dose D) effective dose 27. IF 5 OUT OF 10 SUBJECTS SHOW A SPECIFIC BEHAVIOR TO A DOSE OF A DRUG, THIS IS A) ED 60 B) LD 50 C) TI 60 D) ED 50 28. IF 5 OUT OF 10 SUBJECTS DIE FROM A DOSE OF A DRUG, THEN THIS IS THE A) LD 2 B) ED 20 C) LD S0 D) LD 20 29. IF 2 OUT OF 10 SUBJECTS DIE FROM A DOSE OF A DRUG, THEN THIS IS THE A) LD 2 B) ED 20 C) LD 80 D) LD 20 30. IN GENERAL, TOLERANCE IS THE PROCESS WHEREBY A PARTICULAR DRUG EFFECT A) diminished with repeated doses B) causes a toxic reaction in the user C) becomes similar to another drug effect D) increases with repeated doses

Explanation / Answer

ANSWER:

21. (C) Planning movements

This is because, the association cortex in parietal lobes organize the sensory information to plan the movements.

22. (D) Visual analysis

This is because the information obtained by eyes is processed in the occipital love of the brain where the association cortex organises it for the visual analysis.

23.(A) Auditory analysis

This is because, the association cortex of the temporal lobe processes the auditory information to aid the hearing.

24.(C) Only at the sites of action

This is because, when the drugs are administered, they affect the behaviour by altering the functioning of brain to communicate through neurons. This ultimately changes the mood of a person.

25.(A) Clear half of the dose from the blood compartment

This is because, the half life of a drug is the time required for its clearance from the plasma of blood in the body. This clearance reduces it's pharmacological and physiological affects to half.

26.(B) Therapeutic index

This is because the LD50 gives the lethal dosage whereas the ED50 gives the effective dosage. The ratio of LD50 versus the ED50 gives us the therapeutic index of a drug.

27.(D) ED50

This is because it is that dose which is effective to generate a specific drug response in 50% of the people.

28.(C) LD50

This is because it is that dose of a drug is lethal to 50% of the people who are administered with this drug.

29.(D) LD 20

This is because it is that dose of a drug is lethal to 20% of the people who are administered with this drug.

30.(A) Diminished with repeated dosage

This is because with the repeated administration of the same drug, its effects on the body are gradually diminished due to tolerance.

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