Nervous System
What is the main function of the nervous system?
It acts as the body’s electrical wiring, transmitting messages and controlling functions.
What is the CNS responsible for?
Interpreting sensory information, making decisions, and sending messages to control body functions.
What does the cerebrum control?
Thought, intelligence, memory, emotions, and voluntary movements.
What does the frontal lobe do?
Planning, movement, problem-solving, personality.
What does the parietal lobe do?
Sensory processing (touch, pain, temperature).
What does the temporal lobe do?
Hearing, memory, language.
What does the occipital lobe do?
Vision processing.
What is the main role of the cerebellum?
Coordination, balance, posture, and smooth movement.
What are the brain stem's main functions?
Controls automatic processes like breathing, heart rate, and blood pressure.
What is the spinal cord’s main role?
It’s the communication highway between the brain and body.
How do the CNS and PNS work together?
The CNS makes decisions, and the PNS carries messages to and from the body.
What’s the difference between a neuron and a nerve?
A neuron is a single nerve cell; a nerve is a bundle of many neurons.
What is the function of the soma?
Keeps the neuron alive.
What does the axon do?
Carries electrical signals away from the cell body.
What do dendrites do?
Receive signals from other neurons.
What happens at the axon terminals?
Neurotransmitters are released to send the signal to the next cell.
What do sensory neurons do?
Carry information from receptors to the CNS.
What do motor neurons do?
Carry commands from the CNS to muscles or glands.
What type of neurons connect sensory and motor neurons?
Interneurons