Class 11 · Neural Control and Coordination

Neural System: Structure & Function — NEET Biology

🔥 Predicted for NEET 2027
📖 NCERT Source

The neural system coordinates and integrates functions as well as metabolic and homeostatic activities of all the organs. Neurons, the functional units of neural system are excitable cells due to a differential concentration gradient of ions across the membrane. The electrical potential difference across the resting neural membrane is called the resting potential. The nerve impulse is conducted along the axon membrane in the form of a wave of depolarisation and repolarisation. At a chemical synapse, the membranes of the pre- and a post-synaptic neuron may or may not be separated by a gap called synaptic cleft. Chemicals involved in the transmission of impulses at chemical synapses are called neurotransmitters.

NCERT Biology · Class 11 · Chapter 18 · Paragraph 20
Why This May Be Tested in NEET 2027

Adjacent to a frequently-asked paragraph in the same chapter.

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QuestionPredicted for NEET 2027

10. I. It includes the midbrain, pons, and medulla oblongata. II. It forms the connection between the brain and spinal cord. III. It is part of the peripheral nervous system. IV. It is involved in reflex actions. Which are correct?

📖 Solution & NCERT Explanation
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Correct answer: C I, II, and IV

The brain stem is part of the central nervous system, not peripheral.

❓ Frequently Asked Questions
What does NCERT say about neural system coordinates and?
The neural system coordinates and integrates functions as well as metabolic and homeostatic activities of all the organs. Neurons, the functional units of neural system are excitable cells due to a differential concentration gradient of ions across the membrane.
Has this concept appeared in NEET?
High probability for NEET 2027. Adjacent to a frequently-asked paragraph in the same chapter.
Which chapter is this from?
Neural Control and Coordination, Class 11 NCERT Biology.

Through deep analysis of NEET and NTA, 176 of the 180 ReNEET 2026 (June 21) questions were already in the MedicNEET question bank before the exam.

176/180
of the ReNEET 2026 paper (all subjects) was already in the MedicNEET question bank

MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.

176 of 180 ReNEET 2026 questions traced to MedicNEET17,000+ Biology questionsHindi + English
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