Are these Neural Control and Coordination notes free?

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What does the Neural Control and Coordination revision sheet cover?

The neuron, one signalling unit, Divisions of the nervous system, What each division covers, Central nervous system, Peripheral nervous system, The resting and action potential, The membrane potential across an action potential, The synapse, where signal crosses to the next cell, The brain, three main regions, The brain's three main divisions, Cerebrum vs Cerebellum, Cerebrum.

Is this for Class 11 CBSE Biology?

It is written from the NCERT syllabus, so it serves CBSE and any board that follows NCERT for Biology.

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Neural Control and Coordination — Class 11 CBSE Biology revision notes

A 4-page visual revision sheet for Neural Control and Coordination, written for Class 11 CBSE Biology. Formulas, diagrams and the traps that cost marks, laid out to be read the night before rather than the term before. Free, and it opens inside CapCompass.

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Neural Control and Coordination in one look

a signal rides an electrical spike down a neuron, then a chemical hop to cross to the next one

The neuron, one signalling unit

a neuron has three parts: dendrites that receive a signal, a cell body (cyton) that integrates it, and an axon that carries it away
many axons carry a myelin sheath, laid down by Schwann cells, which speeds up conduction
gaps in the myelin sheath, called nodes of Ranvier, are where the signal actually jumps from point to point in a myelinated axon

What each division covers

Central nervous system: the brain and the spinal cord, the site of information processing and decision-making
Peripheral nervous system: all the nerves of the body, carrying signals to and from the central nervous system

The resting and action potential

a resting neuron's membrane sits polarised, roughly -70 mV inside relative to outside, maintained by the sodium-potassium pump and by the membrane's much higher permeability to K+ than to Na+
a stimulus that pushes the membrane potential past a threshold triggers a rapid opening of Na+ channels, and Na+ rushes in, flipping the membrane briefly positive: this spike is the action potential, or nerve impulse
K+ channels then open and Na+ channels close, restoring the negative resting potential, and the pump resets the ion balance for the next impulse

Page 1 of 4. The full sheet, all 4 pages, opens free in the app.

What this Neural Control and Coordination sheet covers

The neuron, one signalling unit
Divisions of the nervous system
What each division covers
Central nervous system
Peripheral nervous system
The resting and action potential
The membrane potential across an action potential
The synapse, where signal crosses to the next cell
The brain, three main regions
The brain's three main divisions
Cerebrum vs Cerebellum
Cerebrum
Cerebellum
The reflex arc, the fastest response the body has
Receptor
Sensory neuron
Spinal cord
Motor neuron and effector
Tracing a withdrawal reflex
Sensory reception, three receptor types
Traps that cost marks
Tricks that save time

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