EUGERIC CHANGES OF THE CV
SYSTEM WITH CORRECT ANSWERS
{GRADED A+}
Who is considered the founder of clinical medicine and epidemiology? -
✔✔Dr. Thomas Sydenham
What are some eugeric cardiac changes (general)? - ✔✔- Reduced
maximum cardiac output
- Decrease in nodal and conductive fiber function
- Progressive atherosclerosis
- Decreased heart elasticity
- Increased scar tissue formation
- Decreased number of myocytes
- Arterosclerosis
What is the most common decrease in nodal and conductive fiber function?
- ✔✔Atrial fib
What does progressive atherosclerosis lead to? - ✔✔greater afterload
,The heart rate is most impacted by eugenic changes due to? -
✔✔Increased scar tissue formation/decreased # of myocytes
Define Arteriosclerosis: - ✔✔Stiffening or hardening of the arteries
Define Atherosclerosis: - ✔✔Development of plaques
What are some eugeric cardiac changes related to maximum heart rate? -
✔✔- Decreased sympathetic NS drive
- Decrease in sensitivity of catecholamines due to impaired receptor
regulation
What does impaired receptor regulation result in? - ✔✔decreased
sensitivity to beta-adrenergic stimulation
The eugeric cardiac changes related to maximum heart rate result in? -
✔✔- lowered HRmax with exercise,
- increased exercise-induced dysrhythmias
What are some eugeric cardiac changes related to electrical conduction of
the heart? - ✔✔- SA node loses cells
- Purkinje pathways develop conduction system fibrosis
The eugenic cardiac changes that are related to electrical conduction result
in? - ✔✔Slower heart rate
, What are some eugeric cardiac changes related to the myocardium? -
✔✔- Myocardium thickens
- Hypertrophy of the Left ventricle
- Myocyte loss
- Collagen deposition
The eugenic changes that occur with the myocardium result in? - ✔✔-
decreased HRmax,
- progressive decline in maximal aerobic capacity,
- increased risk of arrhythmias and conduction blocks,
- increased risk of heart failure
What is the left ventricle hypertrophy due to? - ✔✔due to increased
resistance of peripheral vascular system
What does collagen deposition impact? - ✔✔It impacts the elasticity of the
heart
What are some eugeric vascular changes? - ✔✔- Baroreceptors become
less sensitive
- Capillary walls thicken
- Decreased endothelial function
- Increased peripheral resistance
SYSTEM WITH CORRECT ANSWERS
{GRADED A+}
Who is considered the founder of clinical medicine and epidemiology? -
✔✔Dr. Thomas Sydenham
What are some eugeric cardiac changes (general)? - ✔✔- Reduced
maximum cardiac output
- Decrease in nodal and conductive fiber function
- Progressive atherosclerosis
- Decreased heart elasticity
- Increased scar tissue formation
- Decreased number of myocytes
- Arterosclerosis
What is the most common decrease in nodal and conductive fiber function?
- ✔✔Atrial fib
What does progressive atherosclerosis lead to? - ✔✔greater afterload
,The heart rate is most impacted by eugenic changes due to? -
✔✔Increased scar tissue formation/decreased # of myocytes
Define Arteriosclerosis: - ✔✔Stiffening or hardening of the arteries
Define Atherosclerosis: - ✔✔Development of plaques
What are some eugeric cardiac changes related to maximum heart rate? -
✔✔- Decreased sympathetic NS drive
- Decrease in sensitivity of catecholamines due to impaired receptor
regulation
What does impaired receptor regulation result in? - ✔✔decreased
sensitivity to beta-adrenergic stimulation
The eugeric cardiac changes related to maximum heart rate result in? -
✔✔- lowered HRmax with exercise,
- increased exercise-induced dysrhythmias
What are some eugeric cardiac changes related to electrical conduction of
the heart? - ✔✔- SA node loses cells
- Purkinje pathways develop conduction system fibrosis
The eugenic cardiac changes that are related to electrical conduction result
in? - ✔✔Slower heart rate
, What are some eugeric cardiac changes related to the myocardium? -
✔✔- Myocardium thickens
- Hypertrophy of the Left ventricle
- Myocyte loss
- Collagen deposition
The eugenic changes that occur with the myocardium result in? - ✔✔-
decreased HRmax,
- progressive decline in maximal aerobic capacity,
- increased risk of arrhythmias and conduction blocks,
- increased risk of heart failure
What is the left ventricle hypertrophy due to? - ✔✔due to increased
resistance of peripheral vascular system
What does collagen deposition impact? - ✔✔It impacts the elasticity of the
heart
What are some eugeric vascular changes? - ✔✔- Baroreceptors become
less sensitive
- Capillary walls thicken
- Decreased endothelial function
- Increased peripheral resistance
