Nervous System Flashcards

(8 cards)

1
Q

What are the two main parts of the nervous system?

A
  1. Central Nervous System (CNS): Brain and spinal cord.
  2. Peripheral Nervous System (PNS): Nerves outside the CNS, including somatic and autonomic systems.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the function of the CNS?

A

The CNS processes and interprets sensory information and coordinates responses.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the role of sensory and motor neurons?

A

• Sensory neurons: Carry signals from sensory organs to the CNS.
• Motor neurons: Carry signals from the CNS to muscles or glands.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How does the autonomic nervous system (ANS) function?

A

The ANS controls involuntary actions like heart rate and digestion. It has two branches:
• Sympathetic: “Fight or flight” response.
• Parasympathetic: “Rest and digest” response.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is a synapse, and how does it work?

A

A synapse is the gap between neurons where neurotransmitters carry signals from one neuron to another.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is multiple sclerosis (MS)?

A

An autoimmune disorder where the immune system damages the myelin sheath of neurons, impairing nerve signal transmission.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is Parkinson’s disease?

A

A neurodegenerative disorder caused by the loss of dopamine-producing neurons, leading to tremors, stiffness, and movement issues.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the role of the reflex arc?

A

The reflex arc is a neural pathway enabling immediate responses to stimuli without involving the brain.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly