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Brain, Body & Mind > Week 1: Communication in the Nervous System > Flashcards

Week 1: Communication in the Nervous System Flashcards

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The Brain flashcards
1
Q

What do afferent neurons do?

A

Send information to the CNS

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2
Q

What do efferent neurons do?

A

Send motor information

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3
Q

How is information communicated in the neural route?

A

Quickly and discretely

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4
Q

How is information communicated in chemical route?

A

Slowly - chemicals travel via the blood

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5
Q

What is the main advantage of the neural route?

A

Information can be rapidly communicated between parts of the body and cells

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6
Q

What is the main advantage of the chemical route?

A

It can influence a wide range of cells in the body

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7
Q

Which parts of the body are in the Central Nervous System (CNS)?

A

Brain and spinal cord

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8
Q

What is the role of the Peripheral Nervous System?

A

Carries messages to and from the CNS

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9
Q

What is the role of the Somatic Nervous System?

A

Controls voluntary muscles and transmits information to the CNS

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10
Q

What is the role of the Autonomic Nervous System (ANS)?

A

Controls involuntary body functions

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11
Q

What is the role of the Sympathetic Nervous System?

A

Releases energy to speed things up

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12
Q

What is the role of the Parasympathetic Nervous System?

A

Stores energy to slow things down

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13
Q

What is GSR an abbreviation for?

A

Galvanic Skin Response

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14
Q

What does GSR refer to?

A

Changes in sweat gland activity - reflects emotional state

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15
Q

What are the two types of cells?

A

Neurons and glial cells

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16
Q

What do neurons do?

A

Collect and transmit electrical information

17
Q

What do glial cells do?

A

Provide support and structure for neurons

18
Q

Approximately how many neurons are there in the brain?

A

100 billion

19
Q

Who came up with the “Fight or Flight” response theory?

A

Cannon (1929)

20
Q

What are examples of the “Fight or Flight” response?

A
  • Increased heart rate
  • Increased breathing rate
  • Blood diverted from skin surface
21
Q

When is the Sympathetic Nervous System most active?

A

When we are stressed

22
Q

When is the Parasympathetic Nervous System most active?

A

When we are relaxed

23
Q

How do we measure sweat gland activity?

A

Galvanic Skin Conductance

24
Q

What does electrocardiography do?

A

Records electrical activity of the heart and transforms it into a waveform

25
Q

What does electrocardiography measure?

A

The rate and regularity of heartbeats

Brain, Body & Mind (3 decks)

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