UNIT 2 Flashcards

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1
Q

Acetylcholine

A

Function is motor movement and memory

Lack has been linked to Alzheimer’s disease

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2
Q

Agonists

A

Drugs that mimic the actions of a neurotransmitters or hormone to produce a response when it binds to a specific receptor in the brain.

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3
Q

The all-or-none response

A

Neurons will either transmit an impulse over the synapse to the next neuron completely or not at all.

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4
Q

What is the Amygdala?

A

Involved in how we process memory

EMOTIONS

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5
Q

What are Axons?

A

Passes messages away from the cell body to the other neurons, muscles, or glands.

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6
Q

What is Broca’s Area?

A

Responsible for controlling muscles that produce speech.

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7
Q

What is the Cerebellum?

A
  • Bottom rear of the brain
  • Coordinates fine muscle movement
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8
Q

What is the Circadian Rhythm?

A
  • our 24 hour biological clock
  • body temp and awareness changes throughout the day
  • it is best to take a test or study during your circadian peaks
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9
Q

What are Delta Waves?

A
  • The slowest recorded brain waves in human beings
  • DEEP sleep
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10
Q

What are Dendrites?

A

Receive messages from other cells

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11
Q

What is Dopamine?

A
  • motor movement and alertness
  • neurotransmitter that plays a role in hormones
  • lack of it leads to Parkinson’s disease
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12
Q

What are Dreams?

A

A sequence of images, emotions, and thoughts passing through a sleeping person’s mind

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13
Q

What are Endorphins?

A
  • deals with pain and stress control
  • we become addicted to endorphin causing feelings
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14
Q

What is the Hippocampus?

A

Involved in the processing and storage of memories

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15
Q

What are hormones?

A

Chemical messengers that coordinate different functions in your body.

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16
Q

What is Insomnia?

A
  • Recurring problems with falling or staying asleep
  • not your once in a while having trouble getting to sleep episodes
  • IS NOT defined by the number of hours you sleep every night
17
Q

What does it mean when someone has Latent Content of Dreams?

A
  • The underlying meaning of a dream
  • example: falling in a dream
    ~ latent content: feeling out of control in your life or failing at something
18
Q

What is Lateralization?

A

A functional dominance of one hemisphere over the other, in which one is more responsible or entirely responsible for control of a function in comparison to the other.

19
Q

What does it mean when someone had Manifest Content of Dreams?

A

They remembered the storyline of a dream.

20
Q

What is Myelin Sheath?

A
  • covers the axon of some neurons and helps speed neural impulses
  • deterioration may cause Multiple Sclerosis
21
Q

What is Narcolepsy?

A
  • uncontrollable sleep attacks
  • lapses directly into REM sleep (usually during times of stress or joy)
22
Q

What are Neurotransmitters?

A
  • Chemical messengers released by terminal buttons through the synapse
  • transmit messages between neurons, or from neurons to muscles
23
Q

What are Night Terrors?

A
  • high arousal (evoke or awaken a feeling, emotion, or response) and appearance of being terrified
  • occur in stage 4, not REM, and are not often remembered
24
Q

What is the Occipital Lobe?

A

VISION

25
Q

What is the Parietal Lobe?

A
  • Contains sensory cortex: receives incoming touch sensations from the rest of the body
26
Q

What is the Pituitary Gland?

A
  • “the master gland”
  • produces hormones that regulate other glands such as the thyroid
  • GROWTH
27
Q

What is (Brain) Plasticity?

A
  • The idea that the brain, when damaged, will attempt to find new ways to reroute messages
  • Brain shapes itself if a part of it is taken out
28
Q

What is REM sleep?

A

REM: Rapid Eye Movement
- active stage of sleep
- composes 20-25% of a normal nights sleep
- breathing, heart rate and brain wave activity quicken
- vivid dreams can occur
- from REM, you go back to stage 2

29
Q

What is Serotonin?

A
  • deals with mood control
  • lack of it has led to depression
30
Q

What is Sleep Apnea?

A
  • temporary cessation’s (process of ending something) of breathing during sleep and consequent momentary reawakenings
31
Q

What is the Sleep Cycle?

A
  • Five stages
  • takes 90-100 minutes to pass through the five stages
  • brains waves will change according to the sleep stage you are in
  • first 4 stages and known as NREM (non-rem) sleep
  • 5th stage is called REM sleep
32
Q

What is the Sympathetic nervous system?

A
  • A network of nerves that helps your body activate its “fight-or-flight” response
  • systems activity increases when you’re stressed, in danger or physically active
33
Q

What is the Synapse?

A
  • the space between two neurons
  • neurons NEVER touch each other
34
Q

What is the Temporal Lobe?

A
  • Process sound sensed by our ears
  • HEARING
35
Q

What is the Thalamus?

A
  • switchboard of the brain
  • receives sensory signals from the spinal cord and sends them to other parts of the forebrain
  • every sense EXCEPT smell
36
Q

What is Wernicke’s Area?

A

Interprets written AND spoken speech