Transport in Animals Flashcards
1
Q
Are there neutrophils present in tissue fluid?
A
Yes
2
Q
Is the hydrostatic pressure high or low in arterial blood?
A
High
3
Q
Are there erythrocytes in lymph?
A
No
4
Q
Benefits of closed transport system?
A
Maintains high blood pressure which increases the rate of flow
5
Q
How is wall of artery adapted to withstand pressure?
A
Thick walls with collagen in which allows the wall to withstand great pressures. This means wall cannot damage as it has ability to stretch as endothelium is folded
6
Q
How can artery walls maintain pressure?
A
Walls contain elastin which allows them recoil of lumen to original size which maintains pressure
Wall contain smooth muscle which mean lumen can constrict