ENDOCRINE SYSTEM

• endocrine system

  Collection of glands that produce hormones that regulate metabolism growth and development tissue
• Function: sexual function, reproduction, sleep, and mood, etc.
• role of the endocrine system:

  secrete hormones directly into the bloodstream to regulate the daily activities of the body

  control it's overall development

  “System of check and balance"
• Hormone

  a chemical messenger that targets a specific group of cells, to cause that group of cells do some activity stop doing an activity
• Glands

  an organ that makes one or more substances, such as hormones, digestive juices, sweat, tears, saliva, milk
• endocrine glands release the substances directly into the bloodstream, to regulate body

  exocrine glands releases the substances into a duct to perform physiological functions.
• HYPOTHALAMUS

  hormone: oxytocin

  stimulates the muscles of the uterus to contract, and boosts the production of prostaglandins, which also increase uterine contractions

  Function

  it regulates the activity of the body, body temp, metabolism reproduction, blood pressure, and use of water.
• PITUITARY

  Hormone: prolactin

  causes the breasts to grow & make milk during pregnancy and after birth.

  Function:

  regulates growth in the skeletal system

  milk prod. in mammary gland.
• PINEAL

  hormone: melatonin, serotonin

  melatonin includes physiological changes that promote sleep, such as decreased body temp

  respiration rate

  Serotonin regulates mood, happiness, anxiety function:

  to receive info. about the state of the light-dark cycle From the environment.

  anxiety function
• THYROID

  hormone: thyroxine calcitonin

  thyroxine plays vital roles in digestion, heart, and muscle function calcitonin lowers calcium in your blood

  Function:

  regulates the body's metabolic rate controlling heart muscle and digestive function, brain development bone maintenance
• PARATHYROID

  hormones: parathyroid hormone

  Function:

  regulates the minerals in the body calcium phosphorus in the bloodstream.
• THYMUS

  hormones: thymosin

  Function: Stimulates the development of the body's defenses against infection.
• PANCREAS

  hormones insulin glucagon

  Function:

  controls the level of sugar in the blood

  Stimulates the liver to convert glycogen to glucose
• ARDRENAL

  hormones: adrenalin

  Function:

  "Fight Flight response"

  released when a person is Frightened

  response to stressful situations increase the uptake of sodium & water in the kidney
• OVARIES and TESTES

  hormones estrogen, progesterone, testosterone estrogen helps develop and maintain breast pubic hairprogesterone regulate the condition of the inner lining (endometrium) of the uterus

  testosterone male secondary sex characteristics

   Estrogen contributes to cognitive bone health. Function of the cardiovascular & other essential bodily processes