Intro To Endocrine System Flashcards
1
Q
What are hormones
A
• A hormone is a substance secreted directly into the blood by specialised cells
Hormones are present in only minute concentrations in the blood and bind specific receptors in target cells to influence cellular reactions
2
Q
Control of action at a distance
A
3
Q
Hormone structures
A
Steroids
Peptides
Thyroid hormones
4
Q
Where are steroid hormones synthesised from?
A
Cholestral
