Chapter 15: Nervous System — Online MCQ Test
SCIENCE · CLASS 10th · Tamil Nadu State Board
Practice Chapter 15: Nervous System with a free chapter-wise online MCQ test.
This chapter covers: This chapter examines human neural architecture including central peripheral and autonomous nervous systems. Students explore neuron structure nerve impulse transmission brain anat....
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Chapter 15: Nervous System — Important Questions & Answers
Which part of the neuron receives impulses from other neurons?
- A. Axon
- B. Dendrite
- C. Cyton
- D. Myelin sheath
Answer: B. Dendrite
Dendrites are branched projections of a neuron that act as the primary sites for receiving signals from other neurons.
Dendrites are branched projections of a neuron that act as the primary sites for receiving signals from other neurons.
The gap between two adjacent neurons is called a ____.
- A. Synapse
- B. Node of Ranvier
- C. Axon hillock
- D. Dendron
Answer: A. Synapse
A synapse is the microscopic junction where information is transmitted from one neuron to another.
A synapse is the microscopic junction where information is transmitted from one neuron to another.
Which division of the nervous system is often referred to as the 'rest and digest' system?
- A. Sympathetic nervous system
- B. Parasympathetic nervous system
- C. Somatic nervous system
- D. Central nervous system
Answer: B. Parasympathetic nervous system
The parasympathetic nervous system promotes activities like digestion and heart rate reduction during relaxed states.
The parasympathetic nervous system promotes activities like digestion and heart rate reduction during relaxed states.
If the dorsal root of a spinal nerve is damaged, what will be the effect?
- A. Motor control will be lost
- B. Both sensory and motor signals will stop
- C. Sensory information will not reach the spinal cord
- D. The spinal cord will stop functioning entirely
Answer: C. Sensory information will not reach the spinal cord
The dorsal root contains sensory neurons; damaging it prevents sensory impulses from reaching the central nervous system.
The dorsal root contains sensory neurons; damaging it prevents sensory impulses from reaching the central nervous system.
A patient exhibits loss of balance and irregular movement after a head injury. Which brain region is most likely affected?
- A. Hypothalamus
- B. Cerebellum
- C. Cerebrum
- D. Medulla Oblongata
Answer: B. Cerebellum
Ataxia, or loss of coordination and balance, is the clinical indicator of damage to the cerebellum.
Ataxia, or loss of coordination and balance, is the clinical indicator of damage to the cerebellum.