Quiz on The Hypothalamic Pituitary-Adrenal System (HPA)

What does the HPA axis stand for?

• Hypothalamic Pituitary-Adrenal System

• Hypothalamic Pancreatic-Adrenal System

• Hypothalamic Pituitary-Activation System

• Hypothalamic Pancreatic-Activation System

What triggers the activation of the hypothalamus in the HPA axis?

• A stressor

• A hormone imbalance

• A lack of sleep

• A dietary deficiency

Which hormone is produced by the hypothalamus in response to a stressor?

• Glucose

• Cortisol

• Adrenocorticotropic hormone (ACTH)

• Corticotropin-releasing hormone (CRH)

What gland detects CRH and produces ACTH?

• Pancreas

• Thyroid gland

• Adrenal gland

• Pituitary gland

Where does ACTH travel to stimulate the release of cortisol?

• Adrenal cortex

• Hypothalamus

• Pituitary gland

• Hippocampus

What is one positive effect of cortisol?

• Boosting immune system response

• Increasing stress levels

• Improving memory

• Lowering sensitivity to pain

What is one negative effect of cortisol?

• Enhanced pain sensitivity

• Impaired memory

• Improved glucose metabolism

• Increased energy levels

Why is the immune system suppressed during stress?

• To divert energy to essential responses

• To increase cortisol production

• To improve glucose metabolism

• To enhance memory function

What health risks can prolonged stress and immunosuppression lead to?

• Colds/flu and gastrointestinal problems

• Increased energy levels

• Improved pain tolerance

• Enhanced glucose metabolism

What mechanism does the HPA axis use to maintain homeostasis?

• Energy restoration loop

• Hormonal activation loop

• Positive feedback loop

• Negative feedback loop