Lecture 9 – Nervous and hormonal control of vascular tone

Question 1

Vascular control ()

Answer 1

Paracrine - cell to cell
autocrine - cell signals itself
endocrine - cell signals another cell far away e.g. hormone

Question 2

Intrinsic and extrinsic control (2,1,1)

Answer 2

Regulate local blood flow to organs/tissues
Important - regional hyperaemia (increase in bf)
e.g. inflammation

Regulate TPR to control BP.

Question 3

Intrinsic and extrinsic control - nerves (2)

Answer 3

Vasoconstrictors - NA

Vasodilators - NO, ACh

Question 4

Intrinsic and extrinsic control - hormones (2)

Answer 4

Vasoconstrictors - A, Angiotensin 2, Vasopressin

Vasodilators - ANP (Anti-natriuretic peptide)

Question 5

S Vasocontrictor system - DOCUMENT

Answer 5

DOCUMENT