B13- Hormonal Control

Question 1

What is the endocrine system?

Answer 1

A system of glands that secrete hormones into the bloodstream

Question 2

How are the effects of the endocrine system different to the effects of the nervous system?

Answer 2

Slower but last longer

Question 3

Where is the pituitary gland?

Answer 3

Brain

Question 4

What controls blood glucose concentration?

Answer 4

The pancreas

Question 5

What does insulin do?

Answer 5

Lowers blood glucose levels, as it causes glucose to convert to glycogen, moving to the cells

Question 6

What does glucagon do?

Answer 6

Increases blood glucose levels, converting glycogen back to glucose

Question 7

What causes type 1 diabetes?

Answer 7

Pancreas no longer responds to insulin

Question 8

What causes type 2 diabetes?

Answer 8

Body no longer responds to insulin

Question 9

What is the function of FSH

Answer 9

Causes egg to mature

Question 10

What is the function of LH?

Answer 10

Stimulates Ovulation

Question 11

What is the function of oestrogen?

Answer 11

Causes the lining of the uterus to thicken, inhibit release of FSH, stimulate release of LH

Question 12

What is the function of progesterone

Answer 12

Maintain uterus lining and inhibit release of FSH and LH

Question 13

Hormones in menstruation

Answer 13

(After period) Oestrogen and progesterone -> FSH -> LH (14) -> lining breakdown

Question 14

What are the methods of hormonal contraception?

Answer 14

Oral contraception, injection, implant, patch, IUD

Question 15

What is the main disadvantage of hormonal contraception?

Answer 15

Do not protect against stis

Question 16

What are the methods of Non Hormonal contraception

Answer 16

Barrier methods, copper iud, spermicides, surgery and abstinence

Question 17

What are the disadvantages of ivf

Answer 17

emotionally stressful, low success rate, expensive, risky (multiple births)

Question 18

What does adrenaline do?

Answer 18

Increase heart rate, increase breathing rate, increased delivery of oxygen to muscles and brain

Question 19

What is the function of thyroxine?

Answer 19

Stimulates basal metabolic rate, growth and development in children

Question 20

What hormones are controlled by negative feedback?

Answer 20

Thyroxine, insulin

Question 21

What controls secondary sex characteristics?

Answer 21

Ovaries (f) and testes (m)

Question 22

Negative feedback in thyroxine

Answer 22

Low-
Hypothalamus releases TRH
Pituitary gland TSH
Thyroid thyroxine

Question 23

How is type 1 diabetes treated

Answer 23

Insulin injections, diet and exercise

Question 24

How is type 2 diabetes treated

Answer 24

Carbohydrate controlled diet and exercise