Chapter 6-Endocrine System Flashcards
Melanocyte Stimulating Hormone (MSH)
produces melanin
Antidiuretic Hormone
increases water retention in kidneys, decreasing urine production
Calcitonin
reduces levels of calcium in the blood
Follicle Stimulating Hormone
stimulates egg/sperm production
Oxytocin
stimulates uterine contractions during childbirth and promotes release of breast milk
Progesterone
Controls and maintains the mentrual cycle and causes breast development
Luteinizing Hormone
stimulates release of sex hormones
Glucagon
raises blood glucose levels
Growth Hormone
stimulates growth in muscle and bones
Epinephrine
adrenaline
Melatonin
stimulates sleep
Parathyroid Hormone
controls calcium levels in blood and will release more calcium if needed
Target Cells
if a cell reacts to a certain hormone then it has a receptor
What is the Master Gland?
the pituatary gland with 2 lobes (anterior and posterior)
What does the pineal gland control?
Its secretes melatonin which regulates sleep and wake cycles?
What do the adrenal glands secrete?
Epinephrine/norepinephrine which regulate the fight or flight response. or adrenaline
What is the pancreas made up of?
Islets of langerhans
What are the islets of langerhans?
They produce insulin and glucagon
What is part of the humoral stimuli?
calcitonin and parathyroid hormone
What is the speed of the nervous system?
fast
What is the speed of the endocrine system?
slow
What does the hypothalamus help with?
Sleep
Where is the goiter located and what does it secrete?
thyroid and iodine
Which gland secretes the most hormones?
the pituatary gland
hormonal stimuli
glands are encouraged by hormones secreted by other glands. For example, the hypothalamus controls pituatary glands
humoral stimuli
levels of nutriends and ions in teh blood can cause glands to secrete hormones. For example, blood calcium levels stimuli parathyroid glands
neural stimuli
nerve impulses cause glands to secrete hormeones. For example, adrenaline.
Lipid steroid hormone
can pass directly thurhg the targget cell membran forming a hormone receptor
water non-steroid hormone
not able to pass through the membrane meaning it binds to receptors on the target cell to activaate a 2nd messenger.
