NEET · Biology · Neural Control and Coordination doubts
10 doubts found
When you touch a hot object your hand jerks back before you feel the pain. How?
This is a spinal reflex.
What does “Nerve impulse” actually mean in Neural Control and Coordination, and why does it matter for NEET?
at rest the membrane is polarised with more sodium outside; a stimulus lets sodium rush in (depolarisation), generating the impulse.
I keep getting “Nerve impulse” questions wrong in Neural Control and Coordination. What's the trap?
thinking sodium is more concentrated inside the neuron at rest.
What does “Synapse” actually mean in Neural Control and Coordination, and why does it matter for NEET?
a junction where the impulse is carried across a gap by neurotransmitter molecules, in one direction only.
I keep getting “Synapse” questions wrong in Neural Control and Coordination. What's the trap?
thinking impulses cross a synapse electrically and in both directions.
What does “Reflex arc” actually mean in Neural Control and Coordination, and why does it matter for NEET?
a rapid pathway -- receptor, sensory neuron, spinal cord, motor neuron, effector -- that acts without waiting for the brain.
I keep getting “Reflex arc” questions wrong in Neural Control and Coordination. What's the trap?
thinking the brain processes and decides a reflex.
What is the difference between nervous coordination and hormonal coordination?
Nervous control is fast, brief and point-to-point through electrical impulses; hormonal control is slower, longer-lasting and spread through the blood to many target organs.
How is Neural Control and Coordination tested in NEET, and what should I focus on?
Prioritise the core ideas: Nerve impulse, Synapse, Reflex arc.
What are the most common mistakes students make in Neural Control and Coordination?
at a chemical synapse the impulse is carried across the gap by neurotransmitter molecules, and in one direction only.