A&P II Flashcards
At what level of low oxygen saturation rate the brain may be affected?
80-85%
The ________ filter about ____ liters (~380 pints) of blood in
an average adult each day, or about 20 percent of the total
resting volume, and thus serve as ideal sites for receptors that
determine oxygen saturation
kindeys
180 liters
True or False
The iron contained in the heme portion of hemoglobin, after the break down by macrophages, may be stored in the liver or spleen, primarily in the form of ferritin or hemosiderin, or carried through the bloodstream by transferrin to the red bone marrow for recycling into new erythrocytes
True
True or False
The non-iron portion of heme is degraded into the waste product biliverdin, a green pigment,
and then into another waste product, bilirubin, a yellow pigment. Bilirubin binds to albumin and travels in the blood to the liver, which uses it in the manufacture of bile, a compound
released into the intestines to help emulsify dietary fat
True
True or False
Copper is a trace mineral which is a component of certain substances that are required for hemoglobin production
True
True or False
Copper indirectly helps the iron to be absorbed in the intestine
True
True or False
Copper indirectly participates in process of transportation of iron in regards to binding to transport protein, named transferrin
True
True or False
In a state of copper deficiency, the transport of iron for heme synthesis decreases, and iron can accumulate in tissues, where it can eventually lead to organ damage
True
True or False
The trace mineral zinc functions as a coenzyme that facilitates the synthesis of the heme portion of hemoglobin
True
Location of the aorta in regards to mediastinum
a. Superior mediastinum
b. Middle mediastinum
c. Anterior mediastinum
d. Posterior mediastinum
a. Superior mediastinum
Location of the superior vena cava in regards to mediastinum
a. Superior mediastinum
b. Middle mediastinum
c. Anterior mediastinum
d. Posterior mediastinum
A. Superior mediastinum
Which statement is not correct about coronary circulation?
a. The coronary circulation is for nourishing the heart structures with oxygen and nutrients, removing the waste
b. Coronary artery is continuous and does not depend on contraction and relaxation phases of the myocardium
c. The coronary flow reaches at its peak when the heart muscle relaxes
d. The coronary flow almost ceases during the contraction of the heart-systole
b. Coronary artery is continuous and does not depend on contraction and relaxation phases of the myocardium
Location of the Mediastinal fat and thymus in regards to mediastinum
a. Superior mediastinum
b. Middle mediastinum
c. Anterior mediastinum
d. Posterior mediastinum
c. Anterior Mediastinum
These vessels are critical in slowing - or - resisting-blood blow and causing a substantial drop in blood pressure, also called resistance vessels.
Arterioles
Primary sites of emigration or diapedesis
Venules
