Stress Flashcards

(45 cards)

1
Q

The cluster of physiological changes associated with stress is defined as

A

The stress response

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2
Q

Stress can be ____ or ____

A

Acute

Chronic

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3
Q

Stressors acting on neural circuits involve the release of: (3)

A

ACTH
PVN
Glucocorticoids

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4
Q

Most common glucocorticoid

A

Cortisol

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5
Q

Stressors activate the ____ nervous system

A

Sympathetic

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6
Q

2 things released from the adrenal medulla in response to stress?

A

Epinephrine

Norepinephrine

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7
Q

ACTH acts on the

A

Adrenal gland

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8
Q

ACTH is a

A

Hormone

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9
Q

ACTH acts on the adrenal gland, which involves the release of (3)

A

Glucocorticoids
Norepinephrine
Epinephrine

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10
Q

Psychosomatic disorders are medical disorders with…

A

Psychological factors playing a causal role

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11
Q

Bacteria causing gastric ulcers?

A

H-Pylori

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12
Q

H-Pylori is present in 75% of people WITHOUT stomach ulcers. What does this suggest?

A

Insufficient in causing disorder alone

Stress increases susceptibility

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13
Q

If microorganisms breach surface barriers and enter the body, they are met by two lines of defence:

A
  1. Innate immune system

2. Adaptive immune system

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14
Q

Two sub-types of the immune system?

A

Innate and adaptive

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15
Q

Together, the innate and adaptive immune system constitute the

A

Immune system

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16
Q

Which is the first immune system to react?

A

Innate immune system

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17
Q

Which is the QUICKEST immune system to react?

A

Innate immune system

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18
Q

One of the first reactions from the INNATE immune system is

A

Inflammation

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19
Q

The innate immune system is triggered when

A

Toll-like receptors bind to molecules on surface of pathogens

20
Q

The group of peptide hormones causing inflammation is called

21
Q

Cytokines

A

Group of peptide hormones

Involved in innate immune response

22
Q

Cytokines attract (2)

A

Leukocytes

Phagocytes

23
Q

Cytokines also promote the healing of…

A

Damaged tissue

24
Q

One example of a phagocyte

25
The destruction of pathogens by phagocytes is called
Phagocytosis
26
Adaptive immune system differs from innate in 4 respects
1. Recently evolved 2. Slower 3. Specific 4. Has a memory
27
Lymphocytes are found in the
Adaptive immune system
28
Two major classes of lymphocytes
T cells | B cells
29
T cells: _____ mediated immunity
Cell
30
B cells: ____ _mediated immunity
Antibody
31
The role of lymphocytes is to
Destroy foreign cells that have already been attacked by phagocytes
32
T cells Phagocyte ingests a microorganism Then, the T-Cell with..
The appropriate receptor binds to the phagocyte
33
After the T-Cell has bound to the appropriate receptor, it
Develops into a form that kills ingested cells
34
How many kinds of T cell receptors are there for each antigen
One for every type of antigen
35
B cells Release ____
Antibodies
36
B cells The antibodies bind to...and...
Antigens Kills the microorganism
37
How does memory relate to the adaptive system?
Mechanism that gives vaccinations their preventative effect
38
T cells and B cells have receptors for
Glucocorticoids
39
Lymphocytes have receptors for (3)
Epinephrine Norepinephrine Glucocorticoids
40
Which region of the brain is particularly susceptible to stress?
Hippocampus
41
Why might the hippocampus be particularly susceptible to stress?
Dense population of glucocorticoid receptors
42
Early exposure to stress --> increase in
Release of glucocorticoids in response to stressors
43
Rat pups with high-nurturing mothers raised by low-nurturing mothers do NOT have an increase tendency to develop anxiety. This indicates
Specific factors were inherited from their mothers that protects them (epigenetic)
44
An 8 week training programme in mindfulness resulted in....
Significant increases in antibodies to influenza vaccine
45
Participants who went away on an intensive meditation retreat had greater...
Telomerase (immune cell) activity