Synapses Quiz

What are the basic units of the brain and nervous system?

• Muscles

• Neurons

• Bones

• Glands

What is the function of dendrites in a neuron?

• To carry signals away from the cell body

• To carry signals into the cell body

• To produce myelin sheath

• To transmit signals to muscles

What is the role of the axon in a neuron?

• To carry signals into the cell body

• To produce neurotransmitters

• To carry signals away from the cell body

• To protect the neuron

Which of the following is NOT a type of neuron?

• Sensory neurons

• Inter neurons

• Motor neurons

• Reflex neurons

What do sensory neurons make contact with in a sense organ?

• Axons

• Dendrites

• Receptors

• Myelin sheath

Where do the axon branches of sensory neurons carry impulses to?

• Muscles

• Sense organs

• Spinal cord & brain (CNS)

• Other sensory neurons

Where are interneurons found?

• In the peripheral nervous system (PNS)

• In the brain and spinal cord (CNS)

• In the muscles

• In the digestive system

What is the primary function of interneurons?

• To transmit signals from the brain to muscles

• To connect sensory and motor neurons

• To detect changes in the environment

• To produce hormones

What is the primary function of motor neurons?

• To carry impulses from muscles and glands to the brain and spinal cord

• To carry impulses from the brain and spinal cord to muscles and glands

• To carry impulses between sensory neurons and the brain

• To carry impulses within the brain only

What is the process of forming a myelin sheath around a nerve axon called?

• Myelination

• Synapsis

• Neurogenesis

• Axonogenesis