D: Endocrine System
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What is the function of the endocrine system
To regulate hormone levels and balance them accordingly
Why do we need the endocrine system when the nervous system exists
To make long lasting changes that are more powerful than the localized electrochemical signals of the nervous system
What are hormones
Chemicals that tell a cell to do a specific function
How do cells detect hormones
Through receptors
Are toll like receptors exclusive to immune function
Yes, but also in healing and progenissis
What hormones control BGL
Insulin and glucagon
What hormones control water to salt ratios
Aldosterone and ADH
What hormone triggers your fight or flight response and increases your heart rate
Adrenaline
What hormone wakes the body up
Melatonin
What produces hormones
Glands
What gland produces melatonin
Pineal gland
What gland produces thymosin
The thymus (t cell activation)
What does thymosin do
Stimulates the production of white blood cells to help fight infections
What gland produces insulin and glucagon
Pancreas (in the islets of langerhans)
What gland produces thyroxine
Thyroid
What does thyroxine do
Regulates metabolism
What is the difference between endocrine and exocrine glands
Endocrine secretes hormones into the bloodstream (like insulin from the pancreas), exocrine secretes substances onto a surface usually via a duct system (like sweat from sweat glands or saliva onto the tounge)
What is the function of adrenaline and where is it produced
It activates your fight or flight response and is produced in the Adrenal glands
Where is aldosterone produced
Adrenal glands
What do alodosterone do
Tells the body to retain salt and water from urine, producing urine with less water and salt
What does ADH do
Tell the body to retain more water, reducing the amount of urine produced
Where is ADH produced
Hypothalamus, secreted by the Posterior pituitary gland
What are the 2 parts of the pituitary gland
Anterior and posterior
What is the purpose of oxytocin
Contractions during labor