Nervous

What are the three (3) main parts of the nervous system?

• cerebellum, cerebrum, medulla

• cochlea, nerves, vestibule

• brain, spinal cord, nerves

Which cell relays messages from one tissue to another?

• Red Blood Cell-RBC

• White Blood Cell-WBC

• Neuron

• Tissue

What type of neuron sends messages from your brain to your muscles?

• Motor Neurons

• Interneurons

• Sensory Neurons

What type of neuron processes messages and determines where to send them in your brain.

• Motor Neurons

• Interneurons

• Sensory Neurons

What is the brain and spinal cord a part of?

• Peripheral Nervous System

• Autonomic Nervous System

• Central Nervous System

• Parasympathetic Nervous System

Main function: to process information received through the sensory systems and other parts of the body and to activate appropriate actions.

• Central Nervous System

• Peripheral Nervous System

• Nerves

• Autonomic Nervous System

Functions: From the body’s organs, glands and muscles to the CNS, including information from the outside world (such as environmental temperature and sensation on the skin, via sensory neurons) and from the inside world (such as aches and pains) • From the CNS to the body’s organs, glands and muscles, via motor neurons.

• Central Nervous System

• Peripheral Nervous System

• Nerves

• Sympathetic Nervous System

Two main functions: • Receive sensory information from the body (vis PNS) & send messages to the brain for processing. • Receive motor information from the brain and send it to relevant parts of the body (via PNS) to control muscles, glands and internal organs.

• Brain

• Spinal Cord

• Nerves

activated when in stress or in a threatening situation.

• Sympathetic Nervous System

• Parasympathetic Nervous System

• Central Nervous System

What is the primary function of the sympathetic nervous system?

• A) To calm the body and conserve energy

• B) To stimulate the body's fight-or-flight response

• C) To regulate voluntary muscle movements

• D) To process sensory information