alleryStart learning →What is the structural and functional unit of the nervous system?
- A neuron
- An erythrocyte
- An osteocyte
- A nephron
Show answer and solution
Correct answer: A. A neuron
Neurons are specialised nerve cells that receive and transmit signals.
ICSE Class 8 Neural Control and Coordination — practice questions
Explore 37 free Neural Control and Coordination questions in ICSE Class 8 Biology. Open each question or exercise to read its content, reference answers and available explanation.
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Showing questions 1–30 of 37.
What is the structural and functional unit of the nervous system?Read the answer and worked solution →A nerve is chiefly a bundle of what?Read the answer and worked solution →Which structures form the central nervous system?Read the answer and worked solution →Which pairing gives the origins of cranial and spinal nerves?Read the answer and worked solution →How many pairs of cranial nerves normally occur in humans?Read the answer and worked solution →The normal human spinal nerves occur in how many pairs?Read the answer and worked solution →In which direction do sensory nerve fibres carry impulses?Read the answer and worked solution →Which task is performed by a motor nerve fibre?Read the answer and worked solution →In a typical motor neuron, where is the nucleus located?Read the answer and worked solution →Which parts of a typical neuron carry incoming signals towards its cell body?Read the answer and worked solution →What is an axon's main role within a typical neuron?Read the answer and worked solution →Where does a motor neuron's outgoing signal reach its target muscle?Read the answer and worked solution →What is a synapse?Read the answer and worked solution →Which bone structure surrounds and protects the brain?Read the answer and worked solution →What are the meninges?Read the answer and worked solution →Which fluid cushions the brain against shocks?Read the answer and worked solution →Which brain part is especially associated with reasoning, memory and voluntary decisions?Read the answer and worked solution →Which brain part helps coordinate movement and maintain body balance?Read the answer and worked solution →Which brain part contains centres controlling breathing and swallowing?Read the answer and worked solution →Which brain region contains centres for body temperature, hunger and thirst?Read the answer and worked solution →Which forebrain structure acts as a major relay for sensory signals going to the cerebrum?Read the answer and worked solution →What is a basic role of the pons?Read the answer and worked solution →Which structure connects the two cerebral hemispheres?Read the answer and worked solution →Which distinction describes grey and white matter in the cerebrum?Read the answer and worked solution →Which role does the spinal cord perform?Read the answer and worked solution →Which structure directly encloses and protects the spinal cord?Read the answer and worked solution →Which description defines a reflex action?Read the answer and worked solution →A hand touches a hot surface and is withdrawn. What is the stimulus?Read the answer and worked solution →What is the role of a receptor in a reflex pathway?Read the answer and worked solution →Which structure acts as an effector in a limb-withdrawal reflex?Read the answer and worked solution →
Worked practice questions
A nerve is chiefly a bundle of what?
- Glandular ducts
- Blood capillaries
- Axons of neurons
- Muscle fibres
Show answer and solution
Correct answer: C. Axons of neurons
A nerve contains bundles of axons enclosed in protective tissue.
Which structures form the central nervous system?
- Muscles and sense organs
- Brain and spinal cord
- Cranial and spinal nerves
- Sensory and motor nerves
Show answer and solution
Correct answer: B. Brain and spinal cord
The central nervous system consists of the brain and spinal cord.
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