Nervous System Quiz

What is the primary function of the sensory function in the nervous system?

• Gathers information from the environment

• Processes information in the brain

• Transmits information to the brain

• Sends information to muscles

Which part of the neuron carries impulses away from the cell body?

• Axon

• Dendrite

• Cell Body

• Schwann Cells

What is the role of Schwann cells?

• Transmit impulses

• Process information

• Receive stimuli

• Produce myelin in the PNS

What type of neuron carries messages from the CNS?

• Schwann neurons

• Interneurons

• Motor neurons

• Sensory neurons

What is the All or Nothing Rule?

• All neurons fire at the same time

• A stimulus must be strong enough to initiate an impulse

• Impulses can vary in strength

• Only sensory neurons respond to stimuli

What is a synapse?

• A gap between neurons

• A type of neuron

• A type of neurotransmitter

• A part of the brain

What do neurotransmitters do?

• Receive stimuli

• Insulate axons

• Protect the brain

• Transmit impulses across synapses

What is the first component of a reflex arc?

• Interneuron

• Effector

• Efferent pathway

• Receptor

Which part of the CNS is responsible for vital reflexes?

• Thalamus

• Medulla

• Cerebellum

• Cerebrum

What is the outermost layer of the meninges?

• Cerebrospinal fluid

• Dura mater

• Pia mater

• Arachnoid mater