nervous system
Neurons transmit electrical and chemical signals. This topic is part of Human Body within Science & Nature. This page currently draws on 11 supporting questions, with answers and bonus facts available below.
nervous system trivia questions
The nervous system sends signals through what kind of cells?
Answer: Neurons
Bonus fact: Neurons transmit electrical and chemical signals.
The central nervous system consists of the brain and what?
Answer: Spinal cord
Bonus fact: The brain and spinal cord form the CNS.
What part of a neuron usually receives incoming signals?
Answer: Dendrites
Bonus fact: Dendrites branch outward from the cell body.
Which organ serves as the main control center of the human nervous system?
Answer: Brain
Bonus fact: The brain processes sensory information and coordinates many body functions and behaviors.
Caffeine mainly acts on the nervous system by blocking receptors for what sleep-promoting chemical?
Answer: Adenosine
Bonus fact: Caffeine competes with adenosine at its receptors.
The spinal cord is part of what nervous system?
Answer: Central nervous system
Bonus fact: The brain and spinal cord form the CNS.
Roughly how many neurons are located in an octopus's arms rather than its central brain?
Answer: A majority
Bonus fact: Much of an octopus nervous system is distributed through its arms.
Which organ is protected by the skull?
Answer: Brain
Bonus fact: The brain and spinal cord make up the central nervous system.
What is the scientific name of the Indian cobra?
Answer: Naja naja
Bonus fact: Its venom acts strongly on the nervous system, though modern antivenom can be lifesaving when given promptly.
Dopamine is a chemical messenger in what system?
Answer: Nervous system
Bonus fact: Dopamine acts as a neurotransmitter in the brain.
Banded krait venom primarily attacks which body system?
Answer: The nervous system
Bonus fact: Like other kraits, it has potent neurotoxic venom that can interfere with breathing by paralyzing muscles.