endocrine system.

Question 1

type of messages sent?

Answer 1

hormonal.

Question 2

how are the messages carried to target organs?

Answer 2

carried in blood.

Question 3

what is the definition for a hormone?

Answer 3

chemical substances that are secreted by glands. travel in the blood stream to target organs where they initiate a response.

Question 4

what are the different areas/ organs where the endocrine system works?

Answer 4

pituitary gland.
thyroid gland.
parathyroid.
thymus.
adrenal glands.
pancreas.
tetes.
ovaries.

Question 5

what gland controls adrenaline, what is the target organ/s and what are the end actions?

Answer 5

adrenaline gland.
vital organs.
fight or flight response. stressful situations.

Question 6

what gland controls ADH, what is the target organ/s and what are the end actions?

Answer 6

pituitary gland.
kidneys.
controls blood water levels by triggering uptake of water in the kidney’s.

Question 7

what gland controls insulin, what is the target organ/s and what are the end actions?

Answer 7

pancreas.
liver and muscles.
reduces blood glucose level.

Question 8

what gland controls glucagon, what is the target organ/s and what are the end actions?

Answer 8

pancreas.
liver.
increases glucose level of blood.

Question 9

what gland controls oestrogen , what is the target organ/s and what are the end actions?

Answer 9

ovaries.
ovaries, uterus, pituitary gland.
controls puberty. increases thickness of uterus lining in menstrual cycle.

Question 10

what gland controls testosterone, what is the target organ/s and what are the end actions?

Answer 10

testes.
male reproductive organs.
controls puberty in males.

Question 11

where is the pituitary gland?

Answer 11

found at the base of the brain.
nerves link to the hypothalamus.

Question 12

what does the pituitary gland produces?

Answer 12

growth hormone.
FSH- follicle stimulating hormone.
TSH- thyroid stimulating hormone.
LH- luteinising hormone.

Question 13

what is step 1 in the body preparing for a fight or flight response?

Answer 13

stimulation of the nervous system occurs( fright.)

Question 14

what is step 2 in the body preparing for a fight or flight response?

Answer 14

the adrenal medulla in the adrenal gland is stimulated.

Question 15

what is step 3 in the body preparing for a fight or flight response?

Answer 15

adrenaline is produced by the adrenal gland.

Question 16

what is step 4 in the body preparing for a fight or flight response?

Answer 16

adrenaline causes an increase in blood sugar levels, heart rate, flow of blood to muscles, body temp, pupil dilation.

Question 17

what is step 5 in the body preparing for a fight or flight response?

Answer 17

body is prepared for fight of flight response.

Question 18

how does the negative feedback cycle work?

Answer 18

pituitary gland.( thyroid stimulating hormone TSH.)
↓
thyroid gland.
↓
thyroxine.
↓
target cells- increase metabolism.

levels too high- inhibition and (back to the top of the list.)
levels too low- stimulation and (back to the top of the list.)