hypertension

Question 1

structure of blood vessels

Answer 1

• longitudinal axis
• perivascular adipose tissue
• nerve
  -external laminate
  -adventitial fibroblast
• media
• radial axis
• internal lamina
• intima

Question 2

effect of pressure on vascular structure

Answer 2

• walls get thinner
• diameter and length increases
• (slinky)
• elasticity: causes reflective wave, allows it to ‘bounce back’

Question 3

importance of adaptation

Answer 3

• helps maintain appropriate blood flow

Question 4

factors affecting blood flow

Answer 4

Flow is linearly proportional to length

Small changes in radius have profound changes in flow

Question 5

arterial remodelling

Answer 5

inward: hypertrophic, eutrophic, hyportrophic

normal: eutrophic

outward: hypertrophic, eutrophic, hypotrophic

Question 6

vascular wall

Answer 6

The vascular wall is a dynamic structure, which can alter its configuration in response to changes in pressure and/or flow.
One of the most widely studied aspects of vascular remodelling is the wall thickening that occurs in hypertension.