Nervous System

Question 1

What’s Saltatory conduction

Answer 1

Neuron with a mylenated axon

Question 2

What structure funnels sound into the ear

Answer 2

Pinna

Question 3

What neurons are mylinated?

Answer 3

Sensory and motor neurons

Question 4

What neuron connects the environment to the CNS

Answer 4

Sensory neurons

Question 5

The sodium-potassium pump moves 3Na and 2K OUT of the axon? (TorF)

Answer 5

False-the pump moves ions INTO the axon

Question 6

After an action potential there’s a brief undershoot of the resting potential known as___

Answer 6

Hyperpolarization

Question 7

The refractory period differs from hyperpolarization because

Answer 7

The refractory period refers to the time period rather than the undershoot of resting potential

Question 8

What’s the first voltage gated channel opened in action potential?

Answer 8

Na channels

Question 9

The one way direction of a nerve impulse down the axon is called

Answer 9

Impulse propagation

Question 10

What’s the importance of reflexes

Answer 10

Safety and minimizing danger

Question 11

Reflex arc steps

Answer 11

Stimulus, pain receptor, sensory neuron, internet ronald, motor neuron, effector

Question 12

What’s continuous conduction

Answer 12

Nerve impulse without any mylenation

Question 13

Ossicles

Answer 13

3 ossicles, amplifies vibrations from tympanic membrane

Question 14

What neuron connects the CNS to the effectors?

Answer 14

Motor neuron

Question 14

Auditory Canal (where is it/what does it do)

Answer 14

Outer ear - connects directly from the pinna, Directs sound towards the tympanic membrane, Has sweat glands to protect ear from yucky things

Question 16

Acetylcholine is an inhibitory neurotransmitter (TorF)

Answer 16

False– it’s mostly excitatory

Question 17

What’s the role of acetylcholine?

Answer 17

Muscular contraction at the neuromuscular joint

Question 18

True or False: Sound vibration travels through the euastachian

Question 19

As a neurotransmitter what does norepinephrine do?

Answer 19

Regulates dreaming, moods, and arousal

Question 20

Is norepinephrine excitatory?

Answer 20

Yes it is an excitatory neurotransmitter

Question 21

What’s the difference between grey and white matter?

Answer 21

Grey matter are unmylinated neurons while white matter is mylinated

Question 22

Functions of the medulla oblongata?

Answer 22

Survival– heart rate, breathing, blood vessels, swallowing and coughing

Question 23

Functions of the cerebellum

Answer 23

Fine motor control, posture and reflexes

Question 24

Function of the pons

Answer 24

Relay messages

Question 25

Function of the frontal lobe

Answer 25

Voluntary movement, speech, personality, thoughts

Question 26

Function of the parietal lobe

Answer 26

Process sensory information (touch, temp, taste)

Question 27

Function of the temporal lobe

Answer 27

Process auditory information

Question 28

Function of the occipital lobe

Answer 28

Process and interpret visual information

Question 29

What's the somatic nervous system

Answer 29

Voluntary nervous system-- brain to muscles

Question 30

What's the autonomic nervous system

Answer 30

Involuntary-- regulates internal organs, etc.

Question 31

The sympathetic and parasympathetic are a part of ____ nervous system

Answer 31

PNS--specifically the autonomic

Question 32

What's the role of the sympathetic nervous system?

Answer 32

Fight or flight-- increase blood flow/heart rate Uses norepinephrine

Question 33

What's the role of the parasympathetic nervous system

Answer 33

Rest and digest-- slow heart rate increase stomach activity Uses acetylcholine