lecture 1 Flashcards
1
Q
A
2
Q
Why do we need the cardiovascular system?
A
- Pump for the circulatory system
- Blood maintains homeostasis
3
Q
How does blood maintain homeostasis
A
- Transport of gases, nutrients & waste
- Transport of regulatory molecules
- Regulation of pH and osmosis
- Maintenance of body temperature
- Protection against foreign substances
- Clot formation
4
Q
A
5
Q
A
6
Q
A
7
Q
Parallel organisation
A
Blood is “reconditioned” to keep composition relatively constant
- ensures all organs get same composition of blood
8
Q
Organs playing big role:
A
- Digestivetract
- Kidneys
- Skin
9
Q
A
10
Q
A
11
Q
Right versus left ventricle
A
- Similar volume of blood ejected by left and right side
- ventricles contract and push blood into both circulatory tracts
- however, the left ventricular wall pumps blood to the whole body, whereas R side only pumps blood to pulmonary circulation
12
Q
Pulmonary circulation
A
low pressure & low-resistance
13
Q
Systemic circulation
A
high pressure & high-resistance
14
Q
Cardiac muscle layers &
Muscle contraction &
Disease e.g. HCM/DCM
A
15
Q
A
16
Q
A
17
Q
A
18
Q
A
19
Q
A
21
Q
A
