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Psychology - Biopsychology > Nervous System > Flashcards

Nervous System Flashcards

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1
Q

The Nervous System

A

A specialised network of cells which act as our primary internal communication system by collecting, processing and responding to external stimuli and coordinating different organs in the body.

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2
Q

What is the Nervous System divided into?

A

1) The Central Nervous System (CNS)
2) The Peripheral Nervous System (PNS)

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3
Q

What does the Central Nervous System (CNS) consist of?

A

1) Brain
2) Spinal cord

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4
Q

What is the Peripheral Nervous System (PNS) divided into?

A

1) Somatic Nervous System
2) Autonomic Nervous System

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5
Q

What is the Autonomic Nervous System divided into?

A

1) Sympathetic Nervous System
2) Parasympathetic Nervous System

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6
Q

What are the 4 main lobes of the Brain?

A

1) Frontal
2) Parietal
3) Occipital
4) Temporal

(see where they are positioned as well)

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7
Q

1) Frontal

A

Responsible for higher order functions, eg, planning, abstract reasoning, logic.

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8
Q

2) Parietal

A

Integrates information from the different senses.

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9
Q

3) Occipital

A

Processes visual information.

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10
Q

4) Temporal

A

Processes auditory information.

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11
Q

Brain stem

A

Connects the brain and spinal cord and controls involuntary processes, including our heartbeat, breathing and consciousness.

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12
Q

Spinal Cord

A

Transfers messages to and from the brain, and the rest of the body. Responsible for simple reflex actions that do not involve the brain.

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13
Q

What is the role of the Somatic Nervous System?

A

Carry sensory information from the outside world to the brain and provide muscle responses via the motor pathway.

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14
Q

What is the Somatic Nervous System made up of?

A

1) Sensory receptors - carry information to the brain and spinal cord.
2) Motor pathways - allow the brain to control movement.

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15
Q

What is the role of the Autonomic Nervous System?

A

Important role in homeostasis, which maintains internal processes like body temperature, heart rate and blood pressure.

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16
Q

What is the Autonomic Nervous System made up of?

A

Only consists of motor pathways.

17
Q

What is the Autonomic Nervous System split into?

A
  • The Sympathetic Nervous System (SNS)
  • The Parasympathetic Nervous System (PNS)
18
Q

The Sympathetic Nervous System (SNS)

A
  • Involved in responses that prepare the body for fight or flight.
  • Impulses travel from the sympathetic nervous system to organs in the body to help us prepare for action when we are faced with a dangerous situation.
  • Effects: increase in heart rate, blood pressure and breathing rate vs decrease in digestion, salivation and the desire to urinate.
19
Q

The Parasympathetic Nervous System (PNS)

A
  • Relax the body, and return us to our ‘normal’ resting state.
  • Effects: decrease in heart rate, blood pressure and breathing rate vs increase in digestion, salivation and the desire to urinate.
20
Q

Similarities - CNS - Brainstem vs Spinal Cord

A

Both control involuntary processes (brain stem controls breathing and the spinal cord controls involuntary reflexes)

21
Q

Differences - CNS - Brain vs Spinal Cord

A

Brain provides conscious awareness and allows for higher-order thinking, while the spinal cord allows for simple reflex responses.

The brain consists of multiple regions responsible for different functions, whereas the spinal cord has one main function.

22
Q

Similarities - PNS - SNS (part of ANS) vs Somatic NS

A

Respond to external stimuli - sympathetic nervous system responds to external stimuli by preparing the body for fight or flight and the somatic nervous system responds to external stimuli by carrying information from sensory receptors to the spinal cord and brain.

23
Q

Differences - PNS - SNS (part of ANS) vs Somatic NS

A

Autonomic nervous system consists of two sub-components, whereas the somatic nervous stem only has one.

Autonomic nervous system controls internal organs and glands, while the somatic nervous system controls muscles and movements.

Autonomic nervous system only has motor pathways whereas somatic nervous system has sensory and motor pathways.

Psychology - Biopsychology (7 decks)

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