endocrine system

Question 1

what is the endocrine system?

Answer 1

• functions to secrete hormones in the blood stream to regulate many of our bodily functions
• with the nervous system, they work togther to regulate and coordinate physiological processes
• also functions to provide a chemical system of communication via the bloodstream
• network of glands spread thru body that create and secrete hormones thru body, hence endocrine system does not transmit info but use blood to deliver hormones

Question 2

define hormones?

Answer 2

chemical substances released from endocrine glands into the bloodstream. Acts on target structures to alter their function or to release other hormones

Question 3

what is the pituitary gland?

Answer 3

the pituitary gland - has the power to influence all other endocrine glands and called the master gland.
located in the brain called the hypothalamus. this is the CNS link to the endocrine system

Question 4

what are the glands in the body and where located and what hormone do they secrete?

Answer 4

Pituitary gland - located in brain - secrete ACTH, growth hormone, prolactin

Pineal gland - located in brain - secrete melatonin

thyroide gland - loacted in throat - secrete thyroxine

thymus - located in chest - secrete ??

Adrenal gland - located in top of kidneys and is controlled by adrenal medulla - secrete adrenaline and noradrenaline

pancreas - located between kidneys - secrete insulin

testes - secrete testosterone - antidrogens

ovaries - secrete oestrogen and many more hormones

Question 5

what is ACTH, Growth hormone and Prolactin for the pituitary gland?

Answer 5

• ACTH - target adrenal cortex and stimulates release of glucocorticoids like cortisone and corticosterone - key component for stress response
• growth hormone - general promotion of cell growth and multiplication in the body
  Prolactin - tragets mammary glands and stimulates release of milk production

Question 6

what is adrenaline and noradrenaline for the adrenal glands?

Answer 6

• effects fight or flight response. increase heart rate, breathing ,bloodflow etc
• norarenaline i think calms u down but not sure

Question 7

what is melatonin for the pineal gland?

Answer 7

• effects regulation of arousal, biological rythms and the sleep-wake cycle

Question 8

what is Oestrogen for the ovaries??

Answer 8

effects regulation of female reproductive system menstral cycle and pregnancy

Question 9

what are the androgens or the main one testosterone for the testes?

Answer 9

effects development of male secondary sexual characteristics at puberty and promotes muscle mass and muscle growth. regulates sex drive and production of red blood cells and sperm

Question 10

what does the pineal gland??

Answer 10

recieve info about light-dark cycle from the retinas in ur eyes and then produce and release timing of sleep