I help regulate the body's sleep cycle.
What is melatonin?
Glucagon
What is the liver?
Adrenaline
What increases HR, BP, causes pupil dilation?
Hyperthyroidism
What is weight loss, rapid heartbeat, nervousness?
Ultradian vs. infradian
Ultradian is faster than 24 hours (e.g. blinking), infradian is slower than 24 hours (e.g. menstrual cycle)
I regulate the body's metabolism.
What are T3 and T4 (thyroxine)?
Prolactin
What is breast tissue?
Insulin
What reduces blood glucose levels (enables glucose uptake)?
Type 1 diabetes
What is destruction of beta cells in the Islets of Langerhans or pancreas not producing insulin?
Negative vs. positive feedback
Negative feedback causes an effect that reduces the stimulus, positive feedback causes an effect that increases the stimulus
I reduce blood glucose levels.
What is insulin?
Thyroid stimulating hormone (TSH)
What is the thyroid?
Melatonin
What regulates the sleep cycle?
Polycystic ovarian syndrome (PCOS)
What is abnormal menstruation, depression and infertility?
Endocrine vs. exocrine
Endocrine glands release hormones directly into the blood stream, exocrine glands release hormones into ducts to act directly at their target site
I cause breast growth and milk production.
What is prolactin?
Oxytocin
What is breast and uterine tissue?
Ghrelin
What stimulates hunger?
Adrenal insufficiency (Addison's Disease)
What is chronic fatigue and muscle weakness?
Follicle-stimulating hormone vs. luteinising hormone
FSH promotes egg growth inside the ovary, LH stimulates egg release from the ovary
I cause an increase in blood calcium.
Calcitonin.
What is skeletal muscle and long bones?
Thymosin
What develops T cells?
Acromegaly
What is enlargement of certain body parts?
Calcitonin vs. parathyroid hormone
Calcitonin promotes calcium uptake into the bones, reducing blood calcium, PTH causes bone destruction, increasing blood calcium