5.2 Adrenal glands Flashcards Preview

A Level Biology > 5.2 Adrenal glands > Flashcards

Flashcards in 5.2 Adrenal glands Deck (19):
1

where are adrenal glands located?

top of each kidney

2

what are the two parts of the adrenal glands?

adrenal medulla
adrenal cortex

3

what are the adrenal medulla and cortex surrounded by?

a capsule

4

is the adrenal medulla the inner or outer region?

inner

5

what type of hormone does the adrenal medulla produce? give an example

non essential hormones
e.g. adrenaline

6

is the adrenal cortex the inner or outer region?

outer

7

what type of hormone does the adrenal cortex produce

essential hormones

8

what is the adrenal cortex controlled by?

hormones released by the pituitary

9

the adrenal cortex produces glucocorticoids what are they involved in?

regulating metabolism
regulating blood pressure and cardiovascular function in response to stress

10

how do glucocorticoids (adrenal cortex) regulate metabolism?

control conversion of fats, proteins and carbohydrates

11

give and example of a glucocorticoid (adrenal cortex):

cortisol

12

the adrenal cortex produces mineralcorticoids what do they help control?

blood pressure

13

how do mineralcorticoids (adrenal cortex) help control blood pressure?

through maintaining balance between salt and water concentrations in the blood

14

give an example of a mineralcorticoid:

aldosterone

15

the adrenal cortex releases androgens what do they do?

release small amounts of sex hormones with small impacts

16

the adrenal medulla releases hormones when which nervous system is stimulated?

when the sympathetic nervous system is stimulated

17

the adrenal medulla secretes adrenaline what does this do?

increases heart rate sending blood quickly to the muscles and brain
increases blood glucose conc by converting glycogen to glucose in the liver

18

noradrenaline works with adrenaline in response to what?

stress

19

what does noradrenaline do?

increases heart rate
causes pupil dilation
increases blood pressure by narrowing blood vessels in non essential organs

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