Physiology of Stress and Anxiety Flashcards Preview

Medicine, Year 1 Block 6 (Psychological Medicine) > Physiology of Stress and Anxiety > Flashcards

Flashcards in Physiology of Stress and Anxiety Deck (16)
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1

What is Eustress and Distress?

Eustress = Good stress
Distress = Bad stress

2

What is a stressor?

Something that induces a stress response

3

What are the three phases to the Stress response?

Alarm phase
Resistance / Adaptation phase
Exhaustion phase

4

In the long term stress response, what hormone is released by the Adrenal cortex?

Cortisol

5

In the short term stress response, what hormone is released by the Adrenal cortex?

Catecholamines i.e. Adrenaline / Noradrenaline

6

Describe what occurs in Long term stress (HPA axis)

1. Hypothalamus releases CRH
2. CRH activates anterior pituitary gland
3. Anterior pituatary gland releases ACTH
4. ACTH travels through blood to adrenal glands
5. Adrenal glands release Cortisol

7

What effect does Aldosterone have, when released by Adrenal Glands, on the body?

Causes retention of sodium and water

8

Which part of the brain is involved in Fear Responses?

Amygdala

9

How does the Amygdala and Hippocampus regulate the HPA axis?

Amygdala activation stimulates HPA axis

Hippocampus activation supresses HPA axis

10

Give examples of 4 anxiety disorders

Generalised Anxiety Disorder

Panic Disorder

Phobias

OCD

PTSD

11

Give an example of a Psychological Approach to Anxiety Disorder

Cognitive Behavioural Therapy

12

What 3 classes of drugs can be prescribed to a patient with an Anxiety Disorder?

Benzodiazepines
SSRIs
Beta blockers

13

Give three examples of Benzodiazepine drugs

Diazepam
Temazepam
Clonazepam

14

What is one precaution to take with Benzodiazepine drugs?

Reduced effectiveness and addictive with long-term use

15

What is the mechanism of action for Benzodiazepines?

Agonists for the GABAa receptor, increasing the inhibitory effect of GABA

16

Give an example of an SSRI

Fluoxetine (Prozac)