Vessels
These type of vessels carry blood to the heart
veins
True or False: Earthworms have open circulatory systems.
False
The __________ side of the heart delivers blood to all parts the body except the lungs.
left
How many cusps does the mitral valve have?
two
What are the 4 components of Blood?
White blood cells
Red blood cells
Platlets
Plasma
3 categories of blood vessels
veins, arteries and capillaries
How do amphibians get oxygen?
Through their skin and lungs
What component of blood allows for it to flow?
plasma
How many valves are in the heart?
4
What component of blood contains hemoglobin?
Red blood cells (RBC)
The thickest blood vessel in the body
The aorta
How many chambers do reptiles have?
3.5 (three with partial septum)
A buildup of plaque and obstruction of the _______artery can lead to a _____ _______
coronary, heart attack
The function of the AV valves
to prevent backflow of blood into the atria when the ventricle walls are contracting.
What component of blood fights infections?
White Blood Cells (WBC)
The large veins that return blood to the heart.
Superior and Inferior vena cava
How many circulatory loop(s) do fish have?
single loop
The place in the body that has the highest pressure of blood.
The aorta
chordae tendinae
What component of blood makes up around 55% of blood volume?
Plasma
The only artery that carries deoxygenated blood
pulmonary arteries
Describe the difference between open vs closed circulatory systems. What are the advantages of both?
Open: the blood/hemolymph drains into sinuses and organs. Use diffusion to move nutrients/wastes. Advantage: does not take as much energy.
Closed: the vessels are connected. Advantage: can have higher pressure (more efficiency).
Describe the path of the blood through the heart. Include the lungs.
Superior/inferior vena cava --> R Atria --> R ventricle--> pulmonary artery --> lungs --> pulmonary vein --> L Atria--> L Ventricle --> Aorta --> body
During Ventricular contraction, which set of valves are open?
Semilunar valves (pulmonary and aortic valves)
What do platelets do?
Clot blood