hormonal coordination

Question 1

define endocrine system

Answer 1

an organ system made up of glands that secret hormones

Question 2

define a hormone

Answer 2

a chemical messenger released from a gland

Question 3

describe how a hormone gets to its target organ

Answer 3

in the blood stream

Question 4

make the glands that make up the endocrine system

Answer 4

pituitary, thyroid, pancreas, adrenal, testes, ovaries

Question 5

give the role of the pituitary gland

Answer 5

controls growth.

stimulates other glands

Question 6

give the role of the thyroid gland

Answer 6

controls metabolic rate, heart rate and body temp

Question 7

give the role of pancreas

Answer 7

controls blood glucose concentration

Question 8

give the role fo the adrenal gland

Answer 8

prepares the body for fight or flight

Question 9

give the role of the testes

Answer 9

secrets testosterone which coordinates the production of sperm and and secondary sexual characteristics

Question 10

give the role fo the ovaries

Answer 10

secrets oestrogen which coordinates the menstrual cycle and development of secondary sexual characteristics

Question 11

describe why the piturity gland is classes as the master gland

Answer 11

produces a number of different hormones and stimulates a number of different glands

Question 12

name two hormones that are involved in controlling blood glucose

Answer 12

insulin (lowers glucose levels)

glucagon (raises glucose levels)

Question 13

describe the effect of insulin secretion

Answer 13

causes glucose to be take ip by cells and converted to glycogen by the liver

Question 14

describe the effect if glucagon secretion

Answer 14

liver converts glycogen to glucose

Question 15

describe type 1 diabetes

Answer 15

pancreas doesn’t produce enough insluin

leading to very high blood glucose levels causing tiredness, weightless, urination

Question 16

describe how type 1 diabetes is caused

Answer 16

genetic factors or damage to the pancreas

Question 17

describe how type 1 diabetes is treated

Answer 17

insulin injections, regular exercise, changing diet (avoiding carbs)

Question 18

describe type 2 diabetes

Answer 18

cells stop responding to insulin

Question 19

describe how type 2 diabetes is caused

Answer 19

obesity or lack of exercise

Question 20

describe how type 2 diabetes is treated

Answer 20

regular exercise , changing diet

Question 21

name the 4 hormones involved in the menstrual cycle

Answer 21

FSH
LH
oestrogen
progesterone

Question 22

give the role of FSH

Answer 22

causes egg to mature

Question 23

give the role of oestrogen

Answer 23

stops FSH and starts LH production and thickens the winning of the uterus

Question 24

give the role of LH

Answer 24

causes eggs to be released

Question 25

give the role of progesterone

Answer 25

maintains uterus lining

Question 26

define IVF

Answer 26

Mother is given FSH and LH - stimulates maturation of eggs and ovulation. ● Eggs are fertilised using sperm in a laboratory - develop into embryos. ● 1 or 2 embryos are inserted into the mother’s womb.

Question 27

give the advantage of IVF

Answer 27

helps infertile couples have children

Question 28

give the disadvantage of IVF

Answer 28

expensive and no also successful, | side effects

Question 29

define contraception

Answer 29

methods used to stop fertilisation or fertilised egg implanting in the uterus

Question 30

name methods of hormonal contraception

Answer 30

``` mixed pill progesterone pill patch implant injection ```

Question 31

name the non hormonal methods of contraception

Answer 31

condoms diaphragm spermicides sterilisation