Quiz 3 Flashcards
The amount of blood that is pumped by the heart in a unit period of time is:
- Cardiac output
- PCV
- Capillary dynamics
Cardiac output
When oxygen concentrations drop in tissues, autoregulation results in dilation of the arterial blood supply to that tissue to allow more oxygen to be supplied.
(T/F)
True
Starling Forces determine:
- the net movement of erythrocytes in and out of the capillary
- the net movement of fluid in and out of the capillary
- the net movement of proteins in and out of the capillary
the net movement of fluid in and out of the capillary
Which aspect of Starling Forces relates to the osmotic pressure of proteins in the plasma, therefore drawing fluid back into the capillary?
- Capillary pressure
- Interstitial pressure
- Plasma colloidal osmotic pressure
Plasma colloidal osmotic pressure
Inflammation of the lining of the inside of the heart and valves is called:
- Epicarditis
- Endocarditis
- Valvulopatitis
Endocarditis
Much like the endothelial cells that form the lining of the blood vessels, the endocardium is simply a lining of simple squamous cells that do not serve specific functions in the cardiovascular system
(T/F)
False
Within the blood vessels, blood pressure is highest in the aorta and lowest in the vena cava.
(T/F)
True
A solution that has a lower osmotic pressure than the plasma is considered to be:
- hypotonic
- isotonic
- hypertonic
hypotonic
A solution that is in equilibrium with the plasma is considered to be:
- hypotonic
- isotonic
- hypertonic
Isotonic
If proteins are decreased within the plasma, this lowers the osmotic pressure of the blood vessel and will likely lead to water moving out of the vessel into the interstitium
(T/F)
True
Osmosis is diffusion of water through a semipermeable membrane from a solution of higher water concentration to a solution of lower water concentration
(T/F)
True
Which of the following is true?
simple diffusion is simple because it allows for the movement of water through protein channels and only requires a small amount of ATP
-active transport allows for the movement of substances through the membrane and is considered active because it requires energy to move oxygen and carbon dioxide across the membrane with no receptor
-facilitated diffusion allows for the movement of water into or out of the cell through protein channels, but does not require energy to do so
-simple diffusion relies on ‘uphill’ movement against the concentration gradient
facilitated diffusion allows for the movement of water into or out of the cell through protein channels, but does not require energy to do so
A reduction in the number of erythrocytes and/or concentration of hemoglobin is called ____; the increased concentration of erythrocytes above normal is called ____.
- polycythemia, anemia
- anemia, hemoglobinemia
- anemia, polycythemia
anemia, polycythemia
Intact, normal endothelium has many components that prevent clotting, but when damaged, these cells can activate platelets and clotting factors.
(T/F)
True
Granulocytes are a type of leukocyte and are produced in the bone marrow. These types of leukocytes contain granules that are either basic, acidic, or both.
(T/F)
True
