Aging and cardiovascular system

Question 1

Heart

Answer 1

 ↓ HR due to fibrosis of pacemaker
cells
 Heart wall thickens, especially in left
ventricle
 Arrhythmia
 Degeneration of cardiac monocytes
 Valve stiffen

Question 2

Blood Vessels

Answer 2

 Blood Vessels
 Baroceptors (BP) less sensitive
 Capillary walls thicken
 Aorta becomes thicker/stiffer