Coordination and control – the endocrine system

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Question 10
Easy

The level of cortisol in the body is controlled by negative feedback.

The diagram shows how this takes place.

HPA feedback loop

Which numbers on the diagram represent the hormones ACTH and cortisol?

2=cortisol2 = \text{cortisol}2=cortisol and 3=ACTH3 = \text{ACTH}3=ACTH

1=ACTH1 = \text{ACTH}1=ACTH and 3=cortisol3 = \text{cortisol}3=cortisol

3=ACTH3 = \text{ACTH}3=ACTH and 4=cortisol4 = \text{cortisol}4=cortisol

2=ACTH2 = \text{ACTH}2=ACTH and 3=cortisol3 = \text{cortisol}3=cortisol

Coordination and control – the endocrine system Questions

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