Nervous System

Question 1

What are the 3 main functions of the nervous system

Answer 1

Reception
Information processing
Coordinating responses

Question 2

2 types of responses in the nervous system and define

Answer 2

Conscious response - voluntary, intentional and goal directed
Unconscious response - involuntary, unintentioal and automatic

Question 3

What is the Spinal Reflex

Answer 3

Unconscious response

Saves reaction time

Question 4

How does the spinal reflex work

Answer 4

o Sensory receptors detect heat/sharps and sensory neuron takes message
o Goes through inter-neuron where a decision is made (and sent to the brain)
o Sends message directly to motor-neuron to move away

Question 5

Role of the neuron

Answer 5

sense, transmit and to move

Question 6

Define • Neurotransmitters

Answer 6

chemical substances used to communicate between neurons

Question 7

What is the path Neurotransmitters take

Answer 7

o Vesicles (in axon terminal)
o Synaptic cleft
o Receptor cites (dendrite)
o Unused neurotransmitters are reuptaken

Question 8

What is Parkinsons Diseas

Answer 8

Chronic and neurodegenerative disease due to lack of dopamine production (from the Substantia Nigra)

Question 9

Motor symptoms of Parkinsons Diseas

Answer 9

o Tremors
o Muscle rigidity – stiff muscles
o Bradykinesia – slow movement
o Postural instability – bad balance

Question 10

Non-motor symptoms of Motor symptoms of Parkinsons Diseas

Answer 10

o Speech issues
o Anosmia – loss/reduced smell
o Mental health decline
o Slowness of thinking

Question 11

Treatment of Parkinsons Diseas

Answer 11

• Medication used to increase/mimic dopamine

* Treatment for non-motor symptoms which are pre-existing