A & P II Straighterline BIO202 | 2024 Questions & Answers |
100% Correct | Verified
Chemoreceptors sensitive to blood carbon dioxide levels are primarily located in - ✔✔carotid arteries
Which of the following is NOT true about the heart? - ✔✔The apex of the heart is directed superiorly
and to the left.
Of the types of damage resulting from a myocardial infarction, which is most likely to cause the greatest
increase in the Q-T interval? - ✔✔left bundle branch block
In a physiology lab, the students designed an experiment to illustrate how the heart responds to changes
in blood pressure. Everyone relaxed and then did a headstand. Which of the following observations are
consistent with the change in the function of their hearts? - ✔✔both decreased heart rate and increased
stroke volume
Which of the following areas of the conduction system would produce spontaneous action potentials
most frequently if the SA node were not functioning? - ✔✔AV node
Which of the following is NOT a major opening into the right atrium? - ✔✔pulmonary vein
Contraction of the papillary muscles would - ✔✔prevent the AV valves from protruding into the atria
Mean arterial pressure is
Select one: - ✔✔
As soon as left ventricular pressure exceeds the pressure in the aorta, the - ✔✔aortic semilunar valve
opens
,During hemorrhagic shock in which blood pressure is decreased, which of the regulatory mechanisms is
most important is increasing cardiac output to help maintain blood pressure? - ✔✔increased
sympathetic stimulation of the heart
Which of the following might increase the risk for cardiovascular disease? - ✔✔
Which cardiac arrhythmia will have no QRS complex as a symptom? - ✔✔ventricular fibrillation
Fred was admitted to the cardiac unit with chest pains. No arrhythmias and no large changes in the heart
rate were observable. Blood samples taken over the next few days showed no increase in enzymes such
as creatine phosphokinase. A possible treatment of the condition is - ✔✔nitroglycerin
Which of the following is administered to the people suffering from myocardial infarction following onset
of symptoms? - ✔✔tissue plasminogen activator (t-PA)
What abnormal heart rhythm could be caused by an elevated body temperature, excessive sympathetic
stimulation, or toxic conditions? - ✔✔tachycardia
Calcium channel blockers are frequently used to - ✔✔treat tachycardia or other arrhythmias.
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? -
✔✔angioplasty
An incompetent pulmonary semilunar valve could result in less blood reaching the - ✔✔lungs
The procedure whereby a small balloon is placed into a partially occluded coronary artery and then
inflated to increase blood flow through the artery is called a(n) - ✔✔
Venous drainage from the posterior thoracic wall enters the superior vena cava via the ___ vein -
✔✔azygos
, The first blood vessels that branch from the ascending aorta are the - ✔✔coronary arteries
When blood pressure increases, a number of events occur that return blood pressure to normal. Which
of the following is one of the events that occurs after an increase in blood pressure? - ✔✔Baroreceptors
are stimulated.
The azygos vein drains blood from the ___ into the superior vena cava - ✔✔thorax
Blood flow into the deep and superficial palmar arches originates from the ___ and ___ arteries. -
✔✔radial and ulnar
Which of the following would occur as a result of increased renin release by the kidneys? - ✔✔an
increase in blood volume
Systemic blood vessels transport blood - ✔✔from the left ventricle through the body to the right atrium.
Veins
Select one:
a. carry blood away from the heart.
b. carry blood under very high pressure.
c. may contain valves and are lined with endothelium.
d. are described as strong, rigid vessels that always carry oxygenated blood.
e. have thick, many layered walls. - ✔✔C. may contain valves and are lined with endothelium.
The exchange of nutrients and gases between the blood and tissue cells is the primary function of -
✔✔capillaries
Which of the following organs would be most likely to contain fenestrated capillaries? - ✔✔kidney
- ✔✔neurons
100% Correct | Verified
Chemoreceptors sensitive to blood carbon dioxide levels are primarily located in - ✔✔carotid arteries
Which of the following is NOT true about the heart? - ✔✔The apex of the heart is directed superiorly
and to the left.
Of the types of damage resulting from a myocardial infarction, which is most likely to cause the greatest
increase in the Q-T interval? - ✔✔left bundle branch block
In a physiology lab, the students designed an experiment to illustrate how the heart responds to changes
in blood pressure. Everyone relaxed and then did a headstand. Which of the following observations are
consistent with the change in the function of their hearts? - ✔✔both decreased heart rate and increased
stroke volume
Which of the following areas of the conduction system would produce spontaneous action potentials
most frequently if the SA node were not functioning? - ✔✔AV node
Which of the following is NOT a major opening into the right atrium? - ✔✔pulmonary vein
Contraction of the papillary muscles would - ✔✔prevent the AV valves from protruding into the atria
Mean arterial pressure is
Select one: - ✔✔
As soon as left ventricular pressure exceeds the pressure in the aorta, the - ✔✔aortic semilunar valve
opens
,During hemorrhagic shock in which blood pressure is decreased, which of the regulatory mechanisms is
most important is increasing cardiac output to help maintain blood pressure? - ✔✔increased
sympathetic stimulation of the heart
Which of the following might increase the risk for cardiovascular disease? - ✔✔
Which cardiac arrhythmia will have no QRS complex as a symptom? - ✔✔ventricular fibrillation
Fred was admitted to the cardiac unit with chest pains. No arrhythmias and no large changes in the heart
rate were observable. Blood samples taken over the next few days showed no increase in enzymes such
as creatine phosphokinase. A possible treatment of the condition is - ✔✔nitroglycerin
Which of the following is administered to the people suffering from myocardial infarction following onset
of symptoms? - ✔✔tissue plasminogen activator (t-PA)
What abnormal heart rhythm could be caused by an elevated body temperature, excessive sympathetic
stimulation, or toxic conditions? - ✔✔tachycardia
Calcium channel blockers are frequently used to - ✔✔treat tachycardia or other arrhythmias.
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? -
✔✔angioplasty
An incompetent pulmonary semilunar valve could result in less blood reaching the - ✔✔lungs
The procedure whereby a small balloon is placed into a partially occluded coronary artery and then
inflated to increase blood flow through the artery is called a(n) - ✔✔
Venous drainage from the posterior thoracic wall enters the superior vena cava via the ___ vein -
✔✔azygos
, The first blood vessels that branch from the ascending aorta are the - ✔✔coronary arteries
When blood pressure increases, a number of events occur that return blood pressure to normal. Which
of the following is one of the events that occurs after an increase in blood pressure? - ✔✔Baroreceptors
are stimulated.
The azygos vein drains blood from the ___ into the superior vena cava - ✔✔thorax
Blood flow into the deep and superficial palmar arches originates from the ___ and ___ arteries. -
✔✔radial and ulnar
Which of the following would occur as a result of increased renin release by the kidneys? - ✔✔an
increase in blood volume
Systemic blood vessels transport blood - ✔✔from the left ventricle through the body to the right atrium.
Veins
Select one:
a. carry blood away from the heart.
b. carry blood under very high pressure.
c. may contain valves and are lined with endothelium.
d. are described as strong, rigid vessels that always carry oxygenated blood.
e. have thick, many layered walls. - ✔✔C. may contain valves and are lined with endothelium.
The exchange of nutrients and gases between the blood and tissue cells is the primary function of -
✔✔capillaries
Which of the following organs would be most likely to contain fenestrated capillaries? - ✔✔kidney
- ✔✔neurons
