The Nervous System

Question 1

Central nervous system

Answer 1

Brain

Spinal cord

Question 2

Peripheral nervous system

Answer 2

Nerves outside of brain and spinal cord

Question 3

Somatic nervous system

Answer 3

Part of peripheral
Controls voluntary control of body
Skeletal muscles

Question 4

Autonomic nervous system

Answer 4

Supplies internal organs

Question 5

What kind of stimulus can receptors detect

Answer 5

Any sensory changes or other changes

Question 6

What are effector cells

Answer 6

Cell that responds to a stimulus and causes some change or action.

Question 7

Oligondendrocytes

Answer 7

Create myelin sheaths in the CENTRAL nervous system

Question 8

Schwann cells

Answer 8

Create myelin sheaths in PERIPHERAL nervous system

Question 9

Astrocytes

Answer 9

Type of glial cell that connects neurone to their blood supply in the brain

Question 10

Three main groups of neurons

Answer 10

Sensory neurons
Motor neurons
Interneurons

Question 11

What is resting potential

How is it maintained

Answer 11

Neuron waiting to fire (for signal)

Maintained by sodium potassium pump (Na+ out K+ in)

Question 12

What are action potentials

Answer 12

Neurons picking up and sending information down the axon into the axon terminal and to the next nerve

Question 13

What happens at the synapse

Answer 13

Transfer of action potential between two nerves

Axon terminal releases neurotransmitters into synapse which bind to receptors on the next cell

Question 14

Reflex arc

Answer 14

Stimulus detected~signal sent to spine~spine sends to brain but sends its own response signal back without brain input to keep the body safe

Question 15

Cranial nerves and how many

Answer 15

12 paired nerves that originate in the brain

Question 16

Functions of cranial nerves

Answer 16

Conveys sight smell taste

Coordinates face movements

Question 17

Spinal nerves and how many

Answer 17

31 pairs of nerves that transmit motor and sensory information between spine and body

Question 18

Functions of spinal nerves

Answer 18

Move skeletal muscles

Sensory information from lower back

Question 19

What is epilepsy

Answer 19

Seizures (abnormal electrical activity in the brain) caused by trauma, genetics, or overstimulation

Question 20

Label the nerve

Answer 20

Dendrite(top branches)
Cell body
Nucleus
Myelin sheaths (“pool noodle” coverings)
Axon (long piece)
Axon terminal (bottom branches)

Question 21

Label the brain

Answer 21

Frontal lobe 
Temporal lobe (bottom middle)
Brain stem (ball above spinal cord)
Spinal cord
Parietal lobe (top middle)
Occipital lobe (back)
Cerebellum (base ball)