the circulatory system Flashcards
1
Q
what are the parts of the body involved in the circulatory system
A
blood, blood vessels, heart
2
Q
phagocytes
A
engulf and surround pathogens
3
Q
lymphocytes
A
produces antibodies
4
Q
red blood cells
A
transport oxygen for aerobic respiration
5
Q
plasma
A
transports carbon dioxide and digested food molecules as well as the urea and hormones
6
Q
platelets
A
clot blood to reduce bleeding
7
Q
what are some adaptations of the blood vessels?
A
- veins - large lumen for low pressures of blood and valves to stop backflow of blood
- arteries - thick walls for high pressures of blood
- capillaries - one cell thick for diffusion
