Nervous System

Question 1

Central Nervous System (CNS)

Answer 1

Brain and Spinal Cord (Boss of nervous system)

Question 2

Peripheral Nervous System (PNS)

Answer 2

On the outside of the body

Question 3

Nerve Types

Answer 3

1.Carries info to (Sensory Nerve)
2.Carries info away (Motor Nerve)
(Nerves only travel in one direction)

Question 4

Sensory Nerves

Answer 4

Carries to CNS

Question 5

Motor Nerves

Answer 5

Relay info from CNS to responders (works the same as sensory nerve just in a different direction)

Question 6

Muscles work in…

Answer 6

Muscles work in pairs

Question 7

Reflex Arc

Answer 7

1. Receptors
2. Sensory Nerves
3. CNS
4. Motor Nerves
5. Responders

Question 8

Somatic NS

Answer 8

Voluntery actions (ex. walking, talking, writing)

Question 9

Autonomic NS

Answer 9

Controls all automatic functions (ex. breathing, heart, blinking)

• Sympathetic- Stress (fight or flight)
• Parasympathetic- peace (return to normal)

Question 10

NS Disorders

Answer 10

Botulism-toxin prevents the release of neurotransmitters
Tetnis-toxin blocks enzymes that destroy neurotransmitters after release
Multiple Sclerosis-MS destroys mylin sheath for the motor nerves

Question 11

Receptors

Answer 11

• Hair stands up- cold air or scared

- Blood vessils bring- oxygen, heat and nutrients