Circulatory Flashcards
What are veins?
Veins are one of the 3 types of ‘highways’ that carry blood TOWARDS the heart, similar to venules and the vena cavae.
What does Oxygenated mean?
Oxygenated means that a cell or similar has sufficient oxygen, or that it is filled with oxygen.
What are valves (Circulatory)
Valves are the opening/closing ‘doors’ of the blood vessels that carry blood towards the heart. They help keep blood moving in one direction.
What is the Aorta?
The aorta is the biggest blood vessel connecting straight from the heart, that is the connection between the heart and the rest of the body’s arteries.
What is the Systemic Loop?
The systemic loop is the loop from the heart, to the rest of the body. This is the cellular respiration path, NOT FROM LUNGS.
What are Arteries
Arteries are strong blood vessels that can contract, and hold alot of blood. It resides with arterioles
What is De-Oxygenated referring to?
De-oxygenated means that the cell or similar requires more oxygen, or that it has no oxygen at all.
What is blood pressure?
Blood pressure is the pressure of blood within the circulatory system. It increases as you do physical activity.
What is the Vena Cava?
The vena cava is the largest vessel in the body that carries blood TOWARDS the heart. It is connected directly to the heart, and basically does the opposite of the aorta.
What is the pulmonary System?
The pulmonary system is the system that connects/carries blood from the heart to the lungs, for blood to become oxygen-rich and deplete waste.
What are capillaries?
Capillaries are the exchange site of gases/nutrients. It’s basically the service for the cells, to give and take oxygen/waste
What is oxygen?
Oxygen is the main required gas that our cells need to produce energy.
What is the atrium?
The atrium (right and left) are the two upper chambers that receive blood from the circulatory system.
What are atrioventricular valves?
A-V valves are valves that connect the atrium to the ventricles, and stop blood from flowing backwards, into the atria.
What are platelets?
Platelets are cell fragments in the blood that are used to ‘clog’ and block areas of entry into the bloodstream, to stop blood from flowing out of the system.
What are venules?
Venules are a type of vessel that carries blood TOWARDS the heart. It is related to the vein and vena cava.
What is carbon dioxide?
Carbon Dioxide is the gas waste that is produced when making energy (ATP) in the cells, and must be taken out by the bloodstream.
What are ventricles?
The left and right ventricles of the heart are chambers that are pumped to move blood to and from the lungs and capillaries. RV takes blood to lungs, LV takes blood to body.
What are semilunar valves?
Semilunar valves are the valves that block/allow the heart from pumping blood to/from the lungs. They are the gates of the right/left ventricles
What are Red blood cells RBC
RBC’s are Oxygen carrying, non-nucleus cells that give/take oxygen and waste from cells
What are arterioles?
Arterioles are (1 size less than arteries) an extension of the arteries that connect the arteries to the capillaries. They take blood AWAY from the heart.
What is the heart?
The heart is the pump of the circulatory/pulmonary system. It supplies more/less pressure in order to maintain oxygen upkeep.
What is the septum?
The septum (of the heart) is the split end in the middle of the heart (between R and L Ventricular valves) that separates the 2 ventricles.
What is the bicuspid valve?
The bicuspid valve is the aortic valve that only has 2 flaps (NOT 3) and stops/allows flow from the right atrium into the right ventricle
What is the tricuspid valve?
The tricuspid valve is the valve that has 3 flaps, and stops/allows flow from the left atrium into the left ventricle.
