Exploring the Nervous System

Which part of the neuron receives signals from other neurons?

• Axon

• Dendrite

• Myelin sheath

• Synapse

What is the main function of the central nervous system?

• To connect the body to the environment

• To process information and coordinate responses

• To transport oxygen in the blood

• To digest food

Which of the following is NOT part of the central nervous system?

• Brain

• Spinal cord

• Nerves in the arm

• Cerebrum

The peripheral nervous system consists mainly of:

• The brain and spinal cord

• Nerves outside the brain and spinal cord

• The cerebrum and cerebellum

• The medulla only

What is the function of neurotransmitters?

• To insulate the axon

• To transmit signals across synapses

• To store genetic information

• To provide energy to neurons

A synapse is:

• The gap between two neurons

• The fatty covering of an axon

• The cell body of a neuron

• The end of a muscle fibre

Which part of the brain controls balance and coordination?

• Cerebrum

• Medulla

• Cerebellum

• Hypothalamus

The medulla is responsible for:

• Voluntary muscle movement

• Memory and learning

• Involuntary actions like breathing and heart rate

• Vision

Which type of neuron carries impulses from the sense organs to the central nervous system?

• Motor neuron

• Sensory neuron

• Interneuron

• Relay neuron

A reflex arc is best described as:

• A conscious decision to move

• An automatic response to a stimulus

• A memory process

• A type of neurotransmitter