Chapter 7: Chemical Coordination Flashcards Preview

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Flashcards in Chapter 7: Chemical Coordination Deck (13):
1

Hormones

Hormones are chemicals secreted by glands in the body. Different hormones affect different target organs.

 

The bloodstream transports hormones from the glands to the target organs.

2

Glands

an organ that secretes a substance

3

Adrenal gland

adrenalin

Prepares body for action - 'fight or flight'.

4

Ovary

Oestrogen & Progesterone

Ovaries, uterus, pituitary gland

Controls puberty and the menstrual cycle in females; stimulates production of LH and suppresses the production of FSH in the pituitary gland.

5

Pituitary gland

1. Hormone: Anti-diuretic hormone (ADH) in kidney effect controls blood water level by triggering uptake of water in kidneys.

2. Hormone: follicle stimulating hormone (FSH) in ovaries effect Triggers egg ripening and oestrogen production in ovaries.

3. Hormone: luteinising hormone (LH) in ovaries effect Triggers egg release and progesterone production in ovaries.

4. Hormone: growth hormone (GH) effect speeds up rate of development in children

6

Testes (your goddam balls, boy!)

Hormone: testosterone in your goodamn balls effect controls puberty in males

7

Pancreas

Hormone: insulin

in liver

effect controls blood sugar levels.

8

Thyroid

Hormone: thyroxin

effect: controls the body's metabolic rate (how fast chemical reactions take place in cells)

9

Show me where your balls are (along with other important glands)

10

What happens when di addrenaline kicks in?

- breathing rate increases (taking in more o2)

- heart beats faster (sending more blood to muscles)

- blood diverted away from intestine to muscles

- stored carbohydrate changed into glucose

- pupils dilate

- body hair stands on end (make animals look larger than enemy)

- mental awareness increases so reactions are faster

11

12

Blood sugar levels

Blood sugar level is controlled by the release and storage of glucose controlled by insulin

13

Diabetes

a disease where the pancreas cannot make enough insulin to keep blood glucose level constant

(tested by urine test, feeling constant thirst)