abububloodarteries.four Flashcards
The structure of a capillary wall differs from that of a vein or artery in that
-Capillary walls are much thinner
Which statement is true regarding when comparing arteries and veins?
-Veins contain valves & arteries do not
Blockage of which vessel would lead to tissue damage in the small intestine, pancreas, and upper colon?
-Superior Mesenteric Artery
Which if the ff layers forms the majority of the thickness of the heart wall?
-Myocardium
If blood flow to the left atrium is blocked, in which blood vessel would the obstruction most likely be found?
-Pulmonary Vein
Which of the ff is most likely to be an elastic artery
-The ascending aorta
Which disease is due to a problem in the blood vessels?
-PDA
Which of these factors would not seriously impair the blood clotting process?
-Low levels of antibodies in the blood
Which of these arteries might a red blood cell pass through if it started in the left ventricle and went to the brain
-Brachiocephalic Artery
Which of the ff is false regarding heart location and gross anatomy?
-The apex of the heart is directed superiorly & to the left.
Which of the ff is not a function of the blood?
-Production of hormones & neurotransmitters
Which of these transfusions would be least likely to cause a transfusion reaction ff is not a function of the blood?
-Type A+ blood transfused into a type B+ patient
Obstruction of the ____ will cause more widespread damage to the heart as compared to obstruction of the other, smaller vessels.
Left Coronary Artery
What structural feature of lymphatic vessels is responsible for preventing lymph from flowing backward?
-Valves
The most abundant substance in blood is _____
- Red Blood Cells
- Water
Each hemoglobin molecule
- Consists of 4 protein
- Chains and 4 heme groups
Given the following vessels, arrange them in the sequence blood would pass through when traveling from the heart to body tissues Arterioles 1 Capillaries 2 Elastic Arteries 3 Muscular Arteries 4
-3, 4, 1, 2
Which of the following blood vessels is part of the pulmonary circulation and carries oxygen poor blood?
-Pulmonary Trunk
Which of these does NOT help to prevent blood loss?
-Release of heparin
-Release of heparin
Which of these is NOT a characteristic of cardiac muscle?
-Cannot develop a significant oxygen debt
Erythropoietin stimulates
-Red bone marrow to produce more red blood cells
Which of these is NOT one of the large veins carrying blood to the heart?
-Pulmonary Trunk
The process of blood cell production is called ____
-Hematopoiesis
The chemoreceptors reflexes
-Both “cause decrease in blood flow to the lungs.” and cause a decrease in blood flow to the heart.” are correct
-Both “cause decrease in blood flow to the lungs.” and cause a decrease in blood flow to the heart.” are correct
