Endocrine basics
What ype of glands relases hormones directly into the bloodstream?
Endocrine glands
What gland is known as the "master gland"?
Pituitary Gland
What hormone lowers blood glucose levels?
Insulin
What type of feedback is most common in the endocrine system?
Negative feeback
What disease is caused by insufficient insulin or insulin resistance?
Diabetes
What is a chemical messenger produced by glands?
What gland regulates metabolism?
Thyroid gland
What hormone increases blood glucose levels?
Glucagon
In negative feedback, what happens when hormone levels are too high?
Production is reduced or stops
What condition results from too much thyroid hormone?
Hyperthyroidism
What system works closely with the endocrine system to maintain homeostasis?
Nervous system
What gland sits on top of the kidneys?
Adrenal glands
What hormone controls the sleep-wake cycle?
Melatonin
What hormone is released when blood calcium levels are low?
Parathyroid hormone (PTH)
What condition results from too little thyroid hormone
Hypothyroidism
What is the term for maintaining a stable environment?
What gland produces insulin and glucagon?
Pancreas
What hormone prepares the body for "fight or flight"?
Epinephrine (adrenaline)
What happens to insulin release when blood sugar rises?
Insulin secretion increases
What disorder is caused by too much cortisol?
Cushing's syndrome
What type of feedback increases the original stimulus (rare in the body)?
Positive feedback
What part of the brain controls the pituitary gland?
Hypothalamus
What hormone stimulates the thyroid gland to release hormones?
TSH (Thyroid-Stimulating Hormone)
What is the feedback loop called when the end product shuts off its own production?
Negative feedback loop
What disorder results from insufficient production of adrenal hormones?
Addison's disease