TJ6: Circulatory System Flashcards
While standing, venous flow is maintained against gravity because of what?
Skeletal Muscle Contractions, Blood Pressure from the heart pumping, and the valves
The most common place to check function is where?
Radial Artery
The left and right sides of the heart contain what level of oxygen?
Left: 95-98%
Right: 65-80%
What is the difference between arteries and veins?
Arteries: carry blood away from the heart, have a higher blood pressure, and have thick walls
Veins: carry blood to the heart, lower blood pressure, thin walled, and have valves to prevent back flow
The Great Saphenous Vein drains blood from what what part of the body?
Foot, Knee and Leg
Which blood vessel is blood velocity lowest?
Capillaries
The walls of the Atria or the Ventricles are thicker? Why?
Ventricles because of their pumping function
A Stationary clot is called what?
A traveling clot is called what?
Stationary: Thrombus
Traveling: Embolus
What cell type is found at the tunica interna?
Endothelial Cells
Blood exits the heart through (arteries/veins) and returns to the heart by (arteries/veins)?
Arteries, veins
Oxygen is carried in the blood stream primarily by?
RBCs
What is occurring during diastole?
Ventricles relaxing/relaxing
What is the average adult pulse rate?
72-80 BPM
Name the blood pressure 120/80?
Resting
The artery that sends blood from the heart to the body is?
Aorta
What is the oxygen level of blood exiting the right ventricle?
65-80%
T/F: As the blood vessel diameter increases, the resistance decreases?
True
Exchange between nutrients in the blood and waste in the tissues occur where?
Capillary Beds
In which blood vessel is the pressure the lowest?
Capillaries
The Mitral valve is located where?
Between the left atrium and left ventricle
The Radial Artery supplies blood to where?
The hand
Blood entering from the Left Atrium is coming from where?
Pulmonary Artery
Another name for Sino-Artrial…
SA Node or Pacemaker
The coverings of the heart is called?
Visceral Pericardium/Epicardium
The blood vessels which supplies blood to the legs?
Common Iliac or Femoral
Name the Atrioventricular Valves
Bicuspid (Mitral) & Tricuspid
During Systole, what is occurring?
Ventricles are contracting/working
Veins contain these to prevent backflow?
Valves
The two Atrioventricular valves are?
Bicuspid (Mitral) and Tricuspid
What is the functional unit of the Circulatory System?
Capillaries
What is the function(s) of the Circulatory System?
Delivery of blood, oxygen, nutrients and waste around the body
Do Arteries contain valves?
No
The Pericardium of the heart is continuous with the what?
Tunica externa
