endocrine

Question 1

What hormonal pathway is likely to be responsible for a decrease in urine production?

Answer 1

Renin angiotensin aldosterone system.

Question 2

Why can a tumour of the pituitary gland affect vision?

Answer 2

The optic chiasm lies just above the pituitary gland and is likely to be affected if there’s a tumour.

Question 3

Name 6 hormones produced by the anterior pituitary gland.

Answer 3

1. FSH.
2. LH.
3. GH.
4. ACTH.
5. TSH.
6. Prolaction

Question 4

Name 2 hormones produced by the posterior pituitary gland.

Answer 4

1. ADH.

2. Oxytocin.

Question 5

How does the anterior pituitary gland receive its blood supply?

Answer 5

Via a portal venous circulation from the hypothalamus.

Question 6

What are the two types of hormone?

Answer 6

1. Made at response e.g. steroids.

2. Stored and released at response e.g. pituitary hormones (peptides).

Question 7

Where are the receptors for steroid hormones located?

Answer 7

Steroid receptors are intracellular - steroids pass through plasma membranes bound to proteins.

Question 8

Where are the receptors for peptide hormones located?

Answer 8

On cell membranes.