Tag: disorders of nervous system

Questions Related to disorders of nervous system

The drugs used by weight conscious peoples to reduce appetite and increase alertness are

  1. LSD

  2. Morphine

  3. Amphetamines and cocaine

  4. Aspirin


Correct Option: C
Explanation:

Stimulants are a class of drugs that elevate mood, increase feelings of well-being, and increase energy and alertness. Stimulants can cause the heart to beat faster and will also cause blood pressure and breathing to elevate. Such stimulants include cocaine, amphetamine, nicotine, caffeine.
Thus, the correct answer is option (C), 'Amphetamines and cocaine'.

Match these drugs under correct group.

Column 1 Column 2
 I. Stimulants A. Cocaine
II. Opiates B. LSD
III. Hallucinogenic C. Morphine
D. Heroin
  1. I - A, II - C and D, III-B

  2. I - A and C, II - D, III - B

  3. I - C, II - D, III - A and B

  4. I - A and D, II - C, III - B


Correct Option: A
Explanation:

Cocaine (A) is a powerfully addictive stimulant drug made from the leaves of the coca plant.
LSD (B) or lysergic acid diethylamide is the most potent hallucinogen, that causes hallucinations.
Morphine (C) is an opioid pain-relieving drug.
Heroin is an opiate. It enters the brain rapidly and binds to opioid receptors on cells.
Thus, the correct answer is 'I-A, II-C and D, III-B'.

Assertion- Cocaine is a good local anesthetic.
Reason- Cocaine delays fatigue.

  1. Both Assertion and Reason are true and Reason is the correct explanation of Assertion.

  2. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

  3. Assertion is true but Reason is false.

  4. Both Assertion and Reason are false.

  5. Assertion is false but Reason is true.


Correct Option: B
Explanation:

Cocaine is a local anesthetic and it also delays fatigue. However, it is anesthetic because when applied to certain areas of the body, it causes loss of feeling or numbness.
Therefore, the correct answer is option B.

Among these, ............... is not a hallucinogen

  1. Marijuana

  2. LSD

  3. Ergot

  4. Amphetamine


Correct Option: D
Explanation:

Hallucinogens are natural and synthetic substances that when, ingested alter one's state of consciousness.
Cannabis, commonly known as marijuana is a psychoactive drug and is considered natural hallucinogen. LSD or lysergic acid diethylamide is a very strong hallucinogen. A form of LSD synthesized many important ergot alkaloids, which are all hallucinogens.
Amphetamine, on the other hand, is a potent CNS stimulant of the phenethylamine class used to treat narcolepsy and attention deficit disorder.
Thus, the correct answer is option (D), 'Amphetamine'.

Mescaline is a

  1. Stimulant

  2. Tranquillizer

  3. Sedative

  4. Hallucinogen


Correct Option: D
Explanation:

Mescaline is a hallucinogen obtained from the small, spineless cactus Peyote (Lophophora williamsi). It is also found in certain members of the Fabaceae (bean family). Users typically experience visual hallucinations and radically altered states of consciousness, often experienced as pleasurable and illuminating but occasionally is accompanied by feelings of anxiety or revulsion. Other effects include open and closed eye visualisations, euphoria, dream-like state, laughter and a psychedelic experience. So, the correct answer is option D.

A. Pethidine and Methadone are synthetic opiates.
R. The action of synthetic opiate is similar to morphine, both structurally and pharmacologically.

  1. If both Assertion and Reason are true and Reason is the correct explanation of Assertion.

  2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

  3. If Assertion is true but Reason is false.

  4. If both Assertion and Reason are false.

  5. If Assertion is false but Reason is true.


Correct Option: C
Explanation:

Pethidine is a synthetic opioid analgesic of the phenylpiperidine class. Methadone is also an opioid medication.
Morphine is also an opioid pain medication. Pethidine and methadone are not structurally similar to morphine. Hydromorphone is structurally related to morphine.
Therefore, the correct answer is option C.

The drug that causes chronic psychosis and severe damage to CNS is

  1. Hashish

  2. Charas

  3. Marijuana

  4. LSD


Correct Option: D
Explanation:
LSD (lysergic acid diethylamide) is colourless, odourless and tasteless hallucinogenic drug used in the form of tablets, capsules or in liquid.  LSD is one of the most potent mood-changing chemicals and is derived from the extremely poisonous ergot fungus, a mold which grows on rye and other grains. Its effects are unpredictable. A tiny amount can produce 12 hours or more of effects. It affects the nervous system as they interfere the brain's serotonin receptor and inhibit the neurotransmitter stimulation. Therefore people experiences severe, terrifying thoughts and feelings, fear of losing control, fear of insanity and death and feelings of despair while using LSD.
So, the correct answer is 'LSD'

Assertion- Some young people in a village show symptoms of drowsiness, headache, hallucination.
Reason- They have consumed a toxic fungus.

  1. Both Assertion and Reason are true and Reason is the correct explanation of Assertion.

  2. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

  3. Assertion is true but Reason is false.

  4. Both Assertion and Reason are false.

  5. Assertion is false but Reason is true.


Correct Option: C
Explanation:

Some of the young people in one of the village may use any drugs or may have become addicted to certain hallucinogens. These drugs resulted in the effects on the individuals which showed symptoms of headache, drowsiness and various other types of hallucination sensations. So, the statement given as assertion is correct. The symptoms shown may be due to drugs and not due to consumption of any type of toxic fungus. The symptoms of consuming toxic fungus may involve numbness, joint pain, fatigue, headache, drowsiness, cough, shortness of breath, etc. So, the reason is false.

Thus, the correct answer is option C. 

Which one of the following statements is false?

  1. Psychoactive drugs have the ability to alter the activity of the nervous system

  2. Adolescence is marked by accelerated physical growth, development of reproductive organs and changes in functioning of the neuroendocrine system

  3. Hallucinogen can alter a person's thoughts, feelings and perceptions

  4. Mescaline is a stimulant


Correct Option: D
Explanation:

Mescaline is a hallucinogen and a recreational drug it has a similar effect as the LSD and other hallucinogens and is not a stimulant.

So the correct option is D.

Which of the following diseases is concerned with eye?

  1. Sarcoma

  2. Glaucoma

  3. Lymphoma

  4. Myeloma


Correct Option: B
Explanation:

Sarcoma is the cancer of connective tissues, lymphoma is cancer of lymphatic tissue, myeloma is the cancer of plasma cells. Whereas, glaucoma is a condition that causes damage to the eye's optic nerve and gets worse over time due to viterous humor not being drained and causing pressure on the eye ball.
Thus, the correct answer is option B.