circulatory system Flashcards
Open circulatory system has?
Haemolymph (Blood like)
Haemolymph flows into?
haemocoel and bath cells
Close circulatory has?
Blood
Where is blood in closed
Always contained in blood vessel
Where does gas exchange occur in blood
wall of capillaries
Type of system for insect, fish amphibian reptile and humans
Insect open the rest closed
Describe heart of insect
made up of many cavity segments with ostrium to allow haemolymph to flow into heart
List heart cavities in fish
Atrium and Ventricle
What is in the heart of fish
Ventricle and atrium
List heart cavities in amphibian
right and left atrium and ventricle
List number of heart cavities in reptile
3 or 4
List heart cavities in 3 chambered reptile
Right and left atrium and ventricle
List heart cavities in humans
right and left atrium and left and right ventricle
Difference in separation between amphibian reptile and humans
Amphibian has no septum and has incomplete seperation
Reptile has partial septum and has partial seperation
Human has a full septum and has full separation
Flow of blood in fish
Atrium - Ventricle - Artery - Gill capillaries (Is oxygenated) - Systematic capillaries (is used and deoxygenated) - vein - repeat
Flow of blood in amphibians and reptiles
Systematic capillaries(deoxygenates) - right atrium - ventricle - lung capillaries and skin (Oxygenates) - left atrium - ventricle- repeat
Flow of blood in humans
Inferior or superior Vena Cava
Right Atrium
Tricuspid valve
Right ventricle
Pulmonary semilunar valve
Pulmonary artery
Lung capillaries (Oxygenates blood)
Pulmonary vein
Left atrium
Bicuspid Valve
Left Ventricle
Aortic semilunar valve
Aorta
Systematic capillaries (Deoxygenates blood)
Pulmonary circulation vs Systematic circulation
first - De brought to lungs for gas exchange
second - Ox brought to systematic capillaries for gas exchange
Function of Aorta
The main artery transporting oxygenated blood to body
Function and type of Vena Cava
Inferior (bottom) and superior (above)
Main vein transporting deoxygenated blood to heart
Function of Pulmonary artery
Transport deoxygenated blood from heart to lungs
Pulmonary veins
Transport oxygenated blood from lungs to heart
Semilunar valves location and function and type
Pulmonary semilunar valves - located at base of pulmonary artery
aortic semilunar valves - located at base of aorta
Ensures the blood flowing out of heart doesn’t flow back to ventricle when it relaxes
Tricuspid valve location and function and characteristic
Between right atrium and right ventricle
Ensure blood flow into right ventricle does not flow back into right atrium
Has three leaflets
