A & P 2 Straighterline Final Exam-300 questions with all correct answers
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A & P 2 Straighterline Final Exam-300 questions with all correct answers/A & P 2 Straighterline Final Exam-300 questions with all correct answers/A & P 2 Straighterline Final Exam-300 questions with all correct answers
When erythrocytes are destroyed, which of the following events occurs? - correct
answer The globin portion of the molecule is broken down into amino acids.
Type AB blood - correct answer has both A and B antigens on the red cells
In the platelet release reaction, - correct answer ADP and thromboxanes
stimulate other platelets to become activated.
The hematocrit is - correct answer d. the percentage of RBCs in a given volume of
blood.
What vitamin is necessary to produce many clotting factors in the liver? - correct
answer Vitamin K
A white blood cell engulfing a bacterium is an example of blood functioning in -
correct answer a. protection.
The oxygenated form of hemoglobin is called - correct answer oxyhemoglobin
The only formed elements that possess a nucleus when mature are the - correct
answer c. leukocytes
Plasma - correct answer . is the liquid matrix of the blood.
An increased amount of heparin in the blood might - correct answer . prevent
clotting process.
On which chromosome is there a mutation that leads to sickle cell anemia? -
correct answer b. chromosome 11
Blood consists of a matrix of plasma and cells; blood is a subtype of ______ tissue.
- correct answer e. connective
The ability of white blood cells to leave the circulation and enter tissues is called -
correct answer b. diapedesis.
The nervous system and certain chemicals can cause the constriction of a blood
vessel. This is known as - correct answer b. vascular spasm
The cascade of events in the intrinsic pathway can be set into motion when _____
comes into contact with collagen. - correct answer factor XII
,A & P 2 Straighterline Final Exam-
If a blood buffer is absent, what function of the blood would be compromised? -
correct answer regulation of pH
What is tissue thromboplastin? - correct answer A compound released by
damaged tissue that initiates the extrinsic clotting pathway
A deficiency of which of the following stem cells would result in a marked increase
in the clotting time of blood? - correct answer megakaryoblast
Macrophages are derived from - correct answer monocytes
Which of the following events is one of the three main stages of coagulation? -
correct answer conversion of fibrinogen to fibrin
The "pacemaker" of the heart is the - correct answer SA node
Where is blood moving during the period of ejection? - correct answer Ventricles
to great vessels
The adult heart averages ___________ grams. - correct answer 250-300
The epicardium - correct answer covers the surface of the heart.
Energy for contraction of myocardial cells comes primarily from - correct answer
aerobic respiration in the mitochondria
What event(s) occur during the QRS complex of an ECG? - correct answer
depolarization of the ventricles and repolarization of the atria
The relationship between preload and stroke volume is known as - correct
answer Starling Law of the heart.
Cardiac muscle cells - correct answer are maintained by an extensive capillary
network.
During the isovolumetric contraction period of the cardiac cycle, - correct answer
AV and semilunar valves are closed.
Pressure in the right ventricle must exceed pressure in the ____ before the right
ventricle can eject blood. - correct answer pulmonary trunk
In the cardiac cycle, - correct answer all four chambers of the heart are in
diastole at the same time.
,A & P 2 Straighterline Final Exam-
What cardiac arrhythmia will have no QRS complex as a symptom? - correct
answer ventricular fibrillation
Which of the following is administered to the people suffering from myocardial
infarction following onset of symptoms? - correct answer Tissue plasminogen
activator (t-PA)
Which of the following might increase the risk for cardiovascular disease? -
correct answer chronic stress
Aortic stenosis results from - correct answer a narrowed opening through the
aortic valve
An incompetent pulmonary semilunar valve could result in less blood reaching the
- correct answer lungs
A patient has been diagnosed with mild heart disease. Tests show that some of
the coronary arteries are partially occluded. Which of the following is the best
course of action to treat the disease? - correct answer Angioplasty
Angina pectoris is chest pain caused by reduced - correct answer blood supply to
cardiac muscle.
Coronary artery disease can diminish myocardial blood flow resulting in the death
of myocardial cells. This condition is known as a myocardial - correct answer
infarction
What abnormal heart rhythm could be caused by an elevated body temperature,
excessive sympathetic stimulation, or toxic conditions? - correct answer
tachycardia
Which type of vessel has the greatest compliance? - correct answer veins
Which of the following thoracic organs is supplied by a parietal branch of the
thoracic aorta? - correct answer the intercostal muscles
Increased pressure in the aortic arch will activate the aortic arch reflex and cause
- correct answer increased parasympathetic stimulation of the heart.
According to Poiseuille's law, - correct answer if resistance increases, flow
decreases
, A & P 2 Straighterline Final Exam-
The vein that ascends along the medial side of the lower limb to the femoral vein
is the ____ saphenous vein and the vein that ascends along the posterior aspect
of the leg to the popliteal vein is the _____ saphenous vein. - correct answer
great; small
If someone has a blood pressure reading of 110/70 mm Hg, their pulse pressure
would be - correct answer 40 mm Hg.
What is the most important means by which capillary exchange occurs? - correct
answer diffusion
Which of the following statements about laminar blood flow is true? - correct
answer The outermost layer of blood experiences the greatest resistance to flow.
In capillary exchange, which of the following statements is true? - correct answer
Most fluid that leaves the arterial end of a capillary reenters the venous end of a
capillary.
The exchange of nutrients and gases between the blood and tissue cells is the
primary function of - correct answer capillaries.
Resistance to blood flow is greatest in - correct answer arterioles
The major types of veins are ____________, ____________, and ______. -
correct answer superficial veins, deep veins, and sinuses
What are vasa vasorum? - correct answer Blood vessels that nourish the tunica
adventitia and tunica media.
Which statement is CORRECT? - correct answer Veins contain valves and arteries
do not.
Which of the following functions is associated with vessels that carry blood
directly from arterioles to veins without passing through capillaries? - correct
answer thermoregulation
Which of the following organs would be most likely to contain fenestrated
capillaries? - correct answer kidney
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