Free Autonomic Nervous System practice for NEET PG and INI-CET Pharmacology, with a written explanation on every question.
6 questions · Free explanations
Showing 1–6 of 6 questions
Q1 · Muscarinic Antagonists
NEET PGEasyExplanation
Atropine is a competitive muscarinic (cholinergic) antagonist. It causes tachycardia, mydriasis, dry mouth and reduced secretions, and is used in bradycardia and organophosphate poisoning.
Q2 · Beta Blocker Selectivity
NEET PGMediumExplanation
Metoprolol, atenolol, bisoprolol and esmolol are beta-1 selective (cardioselective), causing less bronchoconstriction than non-selective agents such as propranolol. Selectivity is relative and is lost at high doses, so caution still applies in asthma.
Q3 · Alpha Blockers
MediumExplanation
Tamsulosin is a selective alpha-1A blocker that relaxes smooth muscle in the prostate and bladder neck, improving urine flow in BPH. Finasteride works differently, by inhibiting 5-alpha-reductase.
Q4 · Cholinesterase Inhibitors
EasyExplanation
Pyridostigmine and neostigmine inhibit acetylcholinesterase, increasing acetylcholine at the neuromuscular junction and improving muscle strength in myasthenia gravis. Neostigmine also reverses non-depolarising muscle blockade.
Q5 · Adrenergic Agonists
HardExplanation
Adrenaline reverses anaphylaxis through alpha-1 mediated vasoconstriction (raising blood pressure and reducing mucosal oedema) and beta-2 mediated bronchodilation, while beta-1 effects support cardiac output. It is the first-line drug, given intramuscularly.
Q6 · Depolarising Blockers
NEET PGMediumExplanation
Succinylcholine can cause hyperkalaemia (dangerous in burns, crush injury and denervation) and can trigger malignant hyperthermia in susceptible individuals, treated with dantrolene. It also causes transient fasciculations.
Autonomic Nervous System sits within Pharmacology, which carries the same syllabus in both exams. This set runs to 6 questions, each tagged Easy, Medium or Hard, 1 of them at Hard, and 3 drawn from previous-year papers.
Answer first, then read the explanation even on the ones you got right — the reasoning is where Autonomic Nervous System marks are actually won, and it is what separates a recalled fact from a question you can solve in a new form. Once the Easy set feels comfortable, filter to Hard to find the gaps Pharmacology examiners keep returning to.
FAQ
Yes. Every question and explanation in this Autonomic Nervous System set is free and open — no login, no form and no payment. The explanation appears the moment you answer.
Autonomic Nervous System sits within Pharmacology, which appears in the same form in both syllabuses. Drug classes, mechanisms and adverse effects. One of the highest yield subjects per hour of study, because the same drugs recur across cycles.
No. No account, no password, no OTP. Answer in the browser and your answers stay on your device for the session.