The Brain and Nervous System (Text & Quiz)

What does the brain control in the human body?

• Only voluntary movement

• Only involuntary movement

• Both voluntary and involuntary movement

• Neither voluntary nor involuntary movement

Why is understanding the nervous system vital to understanding psychology?

• It helps in learning new languages

• It is through the nervous system that we experience pleasure and pain, feel emotions, learn and use language, and plan goals

• It helps in understanding the structure of the brain

• It helps in comparing human and animal nervous systems

What is the main difference between humans and other animals in terms of brain development?

• Humans have a larger brain volume.

• Humans have a more developed frontal cortex.

• Humans have a smaller brain volume.

• Humans have a less developed frontal cortex.

What does the central nervous system (CNS) consist of?

• Brain and peripheral nerves

• Spinal cord and peripheral nerves

• Brain and spinal cord

• Brain and sensory organs

What is the primary function of the central nervous system (CNS)?

• Processing sensory information and sending signals to the peripheral nervous system

• Controlling muscle movements directly

• Regulating blood flow

• Digesting food

What are the three main components of a neuron?

• Dendrites, synapse, axon

• Dendrites, soma, axon

• Soma, synapse, myelin sheath

• Axon, synaptic gap, neurotransmitters

What is the function of dendrites in a neuron?

• To release neurotransmitters

• To act as an antenna and receive information

• To form the myelin sheath

• To create the synaptic gap

What is the term for the electrical signal that travels down the axon?

• Synaptic gap

• Neurotransmitter

• Action potential

• Myelin sheath

What is the role of the myelin sheath in neuron communication?

• To create the synaptic gap

• To release neurotransmitters

• To allow the signal to travel very rapidly from neuron to neuron

• To act as an antenna

What is the synaptic gap?

• The space between the soma and the axon

• The space between neurons

• The part of the neuron that releases neurotransmitters

• The fatty layer covering the axon