Endocrine system - Organs
16 important questions on Endocrine system - Organs
Where does the hypothalamus lie?
What is the function of the hypothalamus?
It controls the autonomic nervous system, produces hormones and regulates the hormones of others from the pituitary gland!
Where is the pituitary gland located?
What is the function of pituitary gland?
It is the "master" endocrine gland because it controls may of the other endocrine glands in body
How are the two parts of the pituitary gland called?
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Which hormones are secreted by anterior pituitary gland?
- Growth hormone - growth
- Prolactin - milk production
- Follicle stimulating hormone (FSH) - development of follicles of the ovaries, which then secrete oestrogen
- Melanocyte stimulating hormone (MSH) - darkening of skin by producing melanin
- Lutenizing hormone (LH) - stimulate ovulation, production of progesterone and testosterone
Which hormones are secreted by posterior pituitary gland?
- Antidiuretic hormone (ADH) - regulates water loss and increases blood pressure
- Oxytocin - let milk down for baby
Where is the pineal gland located?
What is its function?
Pineal gland produces hormone melanin, which acts on the development of sexual maturity and seasonality of breeding and hibernation.
- light inhibits melatonin secretion
- dark produce melatonin secretion
Where is the thyroid gland located?
What is the function of thyroid gland?
Produces thyroxine - growth and development of young animals, in adults increase rate of chemical reactions.
What is iodine and its role within thyroxine? What happens if you produce to little?
Where are parathyroid glands located?
What is their function?
They produce hormone parathormone regulates the amount of calcium in the blood and influences the excretion of phosphates in urine.
Where are the adrenal gland located?
What are the different two parts?
What is their function?
Which hormones do they produce?
two parts of adrenal gland are the outer cortex and inner medulla
Adrenal glands produce hormones
- Aldosterone - regulates concentration of sodium and potassium in blood
- Cortisone and hydrocortisone (cortisol) - increase metabolism, effect on glucose, protein and fat metabolism
- Male and female sex hormones
What is general adaptation syndrome?
What does the adrenal medulla secrete?
- increase amount of blood by blood vessel dilation and heart beat faster
- increase rate of breathing increases oxygen in blood and glucose released form the liver to provide fuel for energy production
Where is the pancreas located?
What is the function of the pancreas?
Pancreas is mostly an
- exocrine gland producing digestive enzymes that are secreted into the small intestine
- endocrine gland secrete insulin (produced in Islets of Langerhans), by increasing the rate at which glucose is converted to glycogen in the liver and move glucose form blood to cells.
What happens in diabetes mellitus? What is a symptom of this condition?
Glucose in urine
Where are the ovaries located? What is the function of ovaries?
The function of ovaries is to produce female germ cells and produce hormones that assist in regulating the reproductive cycle
- follicle cells of developing ova produce oestrogen, which controls the development of the mammary glands and prepare the uterus for pregnancy
- Corpus lute develops in the empty follicle after ovulation produce progesterone
What the function of testes?
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