endocrine system Flashcards
(26 cards)
what are hormones
chemical messengers that cause a specific response in target organs.
what are target organs
the organ a hormone has an effect on
what is homeostasis
homeostasis is keeping conditions in the body constant
what do glands do
they secrete hormones
what is the endocrine system
all the glands and hormones that are produced
why is maintaining a constant internal environment important when faced with internal and external changes?
describe the function of skin in the control of body temperature
explain how insulin controls blood sugar levels in the body
explain how glucagon interacts with insulin to control blood sugar levels in the body
compare type 1 and 2 diabetes, including how they are treated.
explain the effect on cells of osmotic changes in body fluids
describe of the kidneys in maintaining the water balance of the body
describe the overall structure of the kidneys
bowmans capsule, proximal convoluted tubule, loop of hence, collecting duct
describe the effect of ADH on the permeability of the kidney tubules
explain the response of the body to osmotic challenged
describe the principles of hormonal coordination and control by the humans endocrine systems
hormones are chemical messengers that cause specific responses in target organs. they are released from a gland and travel to the target organs in blood. when they reach the target organ they bind onto specific receptors for that hormone.
explain the roles of thyroxine in the body
thyroxine - produced from the thyroid gland which stimulates the metabolic rate which affects growth and development.
thyroxine levels are controlled by negative feedback so when the pituitary gland detects there’s too little thyroxine it stimulates the production on TSH
describe the role of hormones produced in the ovaries in human reproduction including the control of the menstrual cycle
oestrogen is produced by the ovaries and makes the lining of the uterus repair itself and grow again after menstruation. first half of the menstrual cycle.
progesterone is produced by the empty follicle in the ovary after the effect has been released. it maintains the living of the uterus during the second half of the menstrual cycle.
explain the interactions of FSH, LH, oestrogen and progesterone in the control of the menstrual cycle
explain the use of hormones in contraception, evaluate hormonal vs non hormonal methods.
explain the use of hormones in modern reproductive technologies to treat infertility
explain how plant hormones are important in the control of plant growth and development.
describe effects of plant hormones
describe different ways people use plant hormones to control plant growth.
