Pattern Analysis: NEET Questions on Neural Control (2018-2024)
| Year | Topic Tested | Correct Answer | Common Wrong Choice | Difficulty |
|---|---|---|---|---|
| 2024 | Resting membrane potential value | -70 mV | +70 mV (sign error) | Easy |
| 2024 | Ion for depolarization | Na+ influx | K+ influx | Easy |
| 2023 | Brain region: coordination without initiation | Cerebellum | Cerebrum | Medium |
| 2022 | Resting potential maintenance | Na+/K+ pump: 3 Na+ out, 2 K+ in | Reversed ratio | Easy-medium |
| 2022 | Neurotransmitter at NMJ | Acetylcholine | Norepinephrine | Easy |
| 2021 | Photoreceptors: dim light vs colour | Rods (rhodopsin) vs Cones (iodopsin) | Swapping rods/cones | Medium |
| 2020 | Brain function: vital involuntary | Medulla oblongata | Cerebellum | Medium |
| 2019 | Smallest bone in body | Stapes | Incus | Easy |
| 2019 | Eye defect correction | Myopia → concave; Hypermetropia → convex | Swapping lenses | Easy-medium |
| 2018 | Sympathetic vs parasympathetic effects | Heart rate: sympathetic ↑, parasympathetic ↓ | Swapping divisions | Medium |
High-Frequency Topic Clusters (appear EVERY year):
- Resting potential value + ion basis (Na+/K+ pump, depolarization = Na+, repolarization = K+)
- Cerebrum vs cerebellum (initiation vs coordination)
- Photoreceptors (rods vs cones, rhodopsin vs iodopsin)
- Ear ossicles (MIS order, stapes = smallest bone, oval window connection)
- Eye defects and corrections (myopia → concave; hypermetropia → convex)
- ANS effects (sympathetic = , parasympathetic = )
NEET Question Pattern for This Topic:
- ~3-4 questions per year directly from this chapter
- 60% direct recall (definitions, values, names)
- 30% application (matching function to brain region, explaining mechanism)
- 10% diagram-based or assertion-reason
High-Priority 5-Minute Revision Points:
- Resting potential = -70 mV (inside negative); Na+ in = depolarize; K+ out = repolarize
- Cerebrum initiates; cerebellum coordinates (NEVER initiates)
- Medulla = vital involuntary; hypothalamus = homeostasis + pituitary control
- Rods = rhodopsin, 120M, dim light; Cones = iodopsin, 6-7M, colour, fovea
- MIS: Malleus → Incus → Stapes → oval window; stapes = smallest bone; 20x amplification
- 31 spinal nerve pairs: 8C + 12T + 5L + 5S + 1Cx