Cardiovascular System Flashcards
1
Q
Stroke volume
A
Blood pumped by the left ventricle into the aorta in one contraction
2
Q
Cardiac output
A
Product of stroke volume and the heart rate
3
Q
Formula for cardiac output
A
Cardiac output = heart rate x stroke volume
4
Q
Systolic
A
- ventricles of heart —-> pulmonary artery —-> aorta
5
Q
Diastolic
A
Blood rushing back to fill ventricles
6
Q
Normal adult blood pressure
A
- 120 mm Hg (systolic)
- 80 mm Hg (diastolic)
7
Q
Plasma
A
Carries blood cells, glucose, AAs, protein and enzymes
8
Q
Anaemia
A
Having less than normal number of RBC, less haemoglobin
9
Q
Causes of anemia
A
- Blood loss
- Hemolysis
- Less RBC production
10
Q
Hypertension
A
Persistent condition of high blood pressure in vessels
11
Q
Causes of hypertension
A
- Obesity
- Diet
- Lack of jim
- Stress
- Age
- Smoking
12
Q
Symptoms of hypertension
A
- Headache
- Angina
- Nose bleeds
- Heart palpitations
- Shortness of breath
13
Q
Hypotension
A
- Abnormal low blood pressure
- Less oxygen to tissues
14
Q
Hypotension causes…
A
- Tiredness
- Congestion of respiratory system
- Stagnation in bloody supply
- Reduced threshold to withstand g-Force
15
Q
Causes of hypotension
A
- Age
- Genes
- Disorders of endocrine system
- Haemorrhage
