Endocrine System Flashcards
SL & HL (5 cards)
1
Q
When is melatonin secreted and what is its function?
A
Secreted by the pineal gland at night; regulates sleep-wake cycles.
2
Q
How does epinephrine prepare the body for vigorous activity?
A
Increases heart rate, breathing rate, and blood flow to muscles to support intense contraction.
3
Q
Which glands release epinephrine and when?
A
Adrenal glands; during stress or excitement (fight or flight response).
4
Q
What do baroreceptors and chemoreceptors detect?
A
Baroreceptors detect blood pressure; chemoreceptors detect pH, O₂, and CO₂ levels.
5
Q
A
