Download Circulatory System Notes

Circulatory System Notes
Functions of Circulatory System:
• Delivery - of what?
• Removal - of what?
• Fighting Disease - how so?
Structure of the heart:
• What is the approximate size of the heart?
• The heart is made of vessel cells and _____________________ cells
• How are these cells of the heart “serviced?”
Label the following in the diagram:
(as you’re looking in the mirror - think reverse)
• atria
• ventricles
• valves
Heart Beat:
• lub =
• dub =
• Which ventricle has the stronger push? Why?
• What is blood pressure?
Vessels:
1. Artery - how does blood flow in relation to the heart? Visit or Away
• How many layers thick is this vessel?
• Rigid or Floppy?
2. Arterioles - how do they compare to arterioles in terms of thickness?
3. Capillaries - why is this vessel only one cell layer thick?
• What type of blood do capillaries carry? Oxygenated or Deoxygenated?
1. Vein - how does blood flow in relation to the heart? Visit or Away
• Is this vessel rigid or floppy? Why?
• Veins have valves - why?
2. Venule - why is this vessel only one cell layer thick?
• What type of blood do venules carry? Oxygenated or Deoxygenated?
• Where does the blood come from that flows into venules?
Diagram of vessels all connected (we’ll draw this together):
Blood:
• Why does the blood in your veins look blue?
• Red blood cells (RBCs) - what is their function in the blood?
• What is the name of the protein that carries oxygen? To what atom does the oxygen
bind?
• How long do they survive (days)?
• Where are new RBCs made?
• Do they have a nucleus? Why or why not?
• White blood cells (WBCs) - what is their function in the blood?
• Platelets - how are they involved in clotting of the blood?
• Plasma - what gas is carried in this watery liquid? What happens to the pH of the watery
plasma when this gas is present in quantity?