Biology: Mass Transport The Heart Flashcards
1
Q
Name some common features of a mammalian circulatory system
A
- Suitable medium for transport, water based to allow substances to dissolve
- Means of moving the medium and maintaining pressure throughout the body, such as the heart
- Means of controlling flow so it remains unidirectional, such as valves
2
Q
24
A
25
3
Q
Relate the structure of the chambers to their function
A
Atria: thin walled and elastic, so they can stretch when filled with blood
Ventricles: thick muscular walls pup blood under high pressure.
The left ventricle is thicker than the right because it has to pump blood all the way around the body
4
Q
28 arteries and veins
A
29
5
Q
30
A
31
6
Q
32
A
33
7
Q
34
A
35
8
Q
36
A
37
9
Q
38
A
39
10
Q
40
A
41
11
Q
42
A
43
12
Q
44
A
45
13
Q
46
A
47
14
Q
48
A
49
15
Q
50
A
51
