The Peripheral Nervous System Crash Course

What does the peripheral nervous system do?

• Keeps the brain connected to the outside world

• Regulates body temperature

• Controls the heart rate

• Manages the digestive system

What happens when the brain is deprived of external information?

• It begins to hallucinate

• It stops working

• It starts to sleep

• It improves in function

Tags

NGSS.MS-LS1-8

What do thermoreceptors respond to?

• Pressure

• Light

• Temperature changes

• Chemicals

Tags

NGSS.MS-LS1-8

What is the main role of nociceptors?

• Indicate pain

• Sense temperature

• Detect light

• Respond to touch

Tags

NGSS.MS-LS1-8

Why is pain considered useful?

• It is not useful

• It helps protect us from danger

• It makes us stronger

• It is a sign of health

What condition does Ashlyn Blocker have?

• Ability to see in the dark

• Enhanced sensitivity to light

• Total insensitivity to pain

• Increased hearing ability

Tags

NGSS.MS-LS3-1

What triggers the action potentials in nociceptors?

• Smooth floor contact

• A sharp object like a tack

• A loud noise

• A bright light

What is a reflex arc?

• A type of muscle

• A visual perception path

• A bone structure

• A neural pathway that produces a reflex

What are the two types of reflexes mentioned?

• Short and long

• Innate and acquired

• Voluntary and involuntary

• Simple and complex

What role does the thalamus play in pain perception?

• It ignores pain signals

• It heals the injury

• It sends signals to muscles

• It acts as an information switchboard