Circulation Flashcards
Vocabulary
1
Q
Types
A
- Open circulatory system
- Closed circulatory system
2
Q
closed circulatory system
A
- Blood is contained within vessels
- Vertebrates and some invertebrates
3
Q
Open circulatory system
A
- Blood is confined to vessels in only a portion of circuit through body
- Blood mixes with interstitial fluids in the hemocoel (hemolymph)
- Arthropods and some molluscs
4
Q
3 distinct components
A
- Fluid
- Pump
- Vessels
5
Q
Vessels
A
- Arteries: oxygenated blood
- Veins: deoxygenated blood
- Capillaries: gas exchanged
6
Q
Pump
A
Fish
* 2 chambers
* Single loop circulatory system
Amphibians & most non-avian reptiles
* 3-chambers (2 atria, 1 ventricle)
* Double loop circulatory system
* Some mixing of de-oxygenated & oxygenated blood
Crocodilians, Birds & Mammals
* 4-chambers (2 atria, 2 ventricles)
* Double loop circulatory system
* Most efficient
7
Q
Fluid
A
- Blood (closed circulatory system)
- Haemolymp (open circulatory system
