Question 1

Small areas of the myocardium contracting chaotically is called

Accepted Answer

A)  flutter.
B)  fibrillation.
C)  bradycardia.
D)  tachycardia.E) C) and D)
F) B) and D)

Question 2

The aorta is the largest artery in the pulmonary circuit.

Accepted Answer

A) True 
 B)False

Question 3

In a gross anatomy and physiology lab, an instructor wants to highlight blood flow to the intestinal tract. Into which artery do they need to pump colored ink to demonstrate blood flow to this area?

Accepted Answer

A)  Phrenic arteries
B)  Superior mesenteric artery
C)  Lumbar artery
D)  Middle sacral arteryE) C) and D)
F) A) and D)

Question 4

Which of the following is the correct sequence of parts through which blood moves from the vena cava to the lungs?

Accepted Answer

A)  Right atrium, pulmonary valve, right ventricle, tricuspid valve
B)  Right atrium, tricuspid valve, right ventricle, pulmonary valve
C)  Right ventricle, tricuspid valve, right atrium, pulmonary valve
D)  Right ventricle, pulmonary valve, right atrium, tricuspid valve, right ventricleE) A) and B)
F) A) and C)

Question 5

An abnormally slow heart rate is termed

Accepted Answer

A)  tachycardia.
B)  bradycardia.
C)  fibrillation.
D)  cardioversion.E) B) and C)
F) All of the above

Question 6

When the ventricular walls contract,

Accepted Answer

A)  the mitral valve opens and the tricuspid valve closes.
B)  the tricuspid valve opens and the mitral valve closes.
C)  the mitral and tricuspid valves close.
D)  the mitral and tricuspid valves open.E) C) and D)
F) None of the above

Question 7

A pump is attached to the common carotid artery and red ink is pumped in. Which structures of the body will show the red ink?

Accepted Answer

A)  The neck and the head
B)  The intercostal muscles and chest area
C)  The arms and the hands
D)  The large intestine and portions of the small intestineE) B) and C)
F) C) and D)

Question 8

The loose-fitting sac around the heart is the

Accepted Answer

A)  fibrous pericardium.
B)  visceral pericardium.
C)  epicardium.
D)  endocardium.E) All of the above
F) A) and B)

Question 9

The radial and ulnar veins merge to form the ________ vein.

Accepted Answer

A)  jugular
B)  axillary
C)  brachial
D)  cephalicE) None of the above
F) B) and D)

Question 10

Which of the following helps return blood to the heart?

Accepted Answer

A)  Positive intrathoracic pressure
B)  Valves in the arteries
C)  Contracting skeletal muscles
D)  Capillary actionE) B) and C)
F) A) and D)

Question 11

The blood pressure in the large systemic arteries is greatest during

Accepted Answer

A)  atrial systole.
B)  ventricular systole.
C)  ventricular diastole.
D)  atrial diastole.E) B) and C)
F) A) and D)

Question 12

Sudden cardiac arrest can result from

Accepted Answer

A)  an aortic aneurysm.
B)  scar tissue from a previous heart attack.
C)  intake of alcohol.
D)  use of cholesterol-lowering prescriptions.E) None of the above
F) A) and C)

Question 13

Because net inward pressure in the venular ends of capillaries is less than net outward pressure in the arteriolar ends of capillaries,

Accepted Answer

A)  more fluid flows into the capillaries than moves out.
B)  the lymphatic vessels push fluid into the capillaries.
C)  the pressure in the venules increases.
D)  more fluid leaves the capillaries than returns.E) A) and B)
F) A) and C)

Question 14

A left ventricular assist device

Accepted Answer

A)  is routinely used in people who have had heart attacks.
B)  can substitute for the atria.
C)  can maintain cardiac function until a donor heart becomes available.
D)  is an implantable replacement heart.E) B) and C)
F) None of the above

Question 15

Venules continue from capillaries to form veins, which return blood to the atria.

Accepted Answer

A) True 
 B)False

Question 16

The inner lining of the heart is the

Accepted Answer

A)  epicardium.
B)  myocardium.
C)  endocardium.
D)  pericardium.E) A) and D)
F) A) and C)

Question 17

The normal pacemaker of the heart is the

Accepted Answer

A)  Purkinje fibers.
B)  AV bundle.
C)  sinoatrial node.
D)  atrioventricular node.E) B) and C)
F) A) and D)

Question 18

In "wet" macular degeneration, capillaries form below the weakened retina and leak blood and fatty materials, leading to vision loss. One treatment for this condition is injection of a VEGF (vascular endothelial growth factor) inhibitor directly into the affected eye areas. How would this treat the condition?

Accepted Answer

A)  VEGF signals for blood vessel breakdown. Blocking VEGF will prevent the capillaries from becoming weak and leaking.
B)  VEGF stimulates the endothelium of arteries to secrete nitric oxide, which relaxes smooth muscle surrounding the capillary. Blocking VEGF prevents the capillaries from relaxing and allowing blood to leak out.
C)  VEGF inhibits capillary growth. Blocking release of VEGF will allow new, stronger capillaries to form in the eye and stop leaks.
D)  VEGF stimulates growth of capillaries. Blocking VEGF will stop weak, leaky capillaries from growing in the eye.E) None of the above
F) B) and C)

Question 19

The distribution of blood in capillary pathways is largely controlled by the action of precapillary sphincters.

Accepted Answer

A) True 
 B)False

Question 20

Metarterioles connect arterioles and venules, and allow blood to bypass the capillaries.

Accepted Answer

A) True 
 B)False

Exam 15: Cardiovascular System

The normal pacemaker of the heart is the

Correct Answer
verified

The loose-fitting sac around the heart is the

Correct Answer
verified

Sudden cardiac arrest can result from

Correct Answer
verified

Metarterioles connect arterioles and venules, and allow blood to bypass the capillaries.

Correct Answer
verified

Correct Answer
verified

When the ventricular walls contract,

Correct Answer
verified

Small areas of the myocardium contracting chaotically is called

Correct Answer
verified

Because net inward pressure in the venular ends of capillaries is less than net outward pressure in the arteriolar ends of capillaries,

Correct Answer
verified

A left ventricular assist device

Correct Answer
verified

The distribution of blood in capillary pathways is largely controlled by the action of precapillary sphincters.

Correct Answer
verified

In a gross anatomy and physiology lab, an instructor wants to highlight blood flow to the intestinal tract. Into which artery do they need to pump colored ink to demonstrate blood flow to this area?

Correct Answer
verified

Venules continue from capillaries to form veins, which return blood to the atria.

Correct Answer
verified

The radial and ulnar veins merge to form the ________ vein.

Correct Answer
verified

A pump is attached to the common carotid artery and red ink is pumped in. Which structures of the body will show the red ink?

Correct Answer
verified

The aorta is the largest artery in the pulmonary circuit.

Correct Answer
verified

Which of the following helps return blood to the heart?

Correct Answer
verified

An abnormally slow heart rate is termed

Correct Answer
verified

The blood pressure in the large systemic arteries is greatest during

Correct Answer
verified

The inner lining of the heart is the

Correct Answer
verified

Which of the following is the correct sequence of parts through which blood moves from the vena cava to the lungs?

Correct Answer
verified

Exam 15: Cardiovascular System

The normal pacemaker of the heart is the

Correct AnswerverifiedShow Answer

The loose-fitting sac around the heart is the

Correct AnswerverifiedShow Answer

Sudden cardiac arrest can result from

Correct AnswerverifiedShow Answer

Metarterioles connect arterioles and venules, and allow blood to bypass the capillaries.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

When the ventricular walls contract,

Correct AnswerverifiedShow Answer

Small areas of the myocardium contracting chaotically is called

Correct AnswerverifiedShow Answer

Because net inward pressure in the venular ends of capillaries is less than net outward pressure in the arteriolar ends of capillaries,

Correct AnswerverifiedShow Answer

A left ventricular assist device

Correct AnswerverifiedShow Answer

The distribution of blood in capillary pathways is largely controlled by the action of precapillary sphincters.

Correct AnswerverifiedShow Answer

In a gross anatomy and physiology lab, an instructor wants to highlight blood flow to the intestinal tract. Into which artery do they need to pump colored ink to demonstrate blood flow to this area?

Correct AnswerverifiedShow Answer

Venules continue from capillaries to form veins, which return blood to the atria.

Correct AnswerverifiedShow Answer

The radial and ulnar veins merge to form the ________ vein.

Correct AnswerverifiedShow Answer

A pump is attached to the common carotid artery and red ink is pumped in. Which structures of the body will show the red ink?

Correct AnswerverifiedShow Answer

The aorta is the largest artery in the pulmonary circuit.

Correct AnswerverifiedShow Answer

Which of the following helps return blood to the heart?

Correct AnswerverifiedShow Answer

An abnormally slow heart rate is termed

Correct AnswerverifiedShow Answer

The blood pressure in the large systemic arteries is greatest during

Correct AnswerverifiedShow Answer

The inner lining of the heart is the

Correct AnswerverifiedShow Answer

Which of the following is the correct sequence of parts through which blood moves from the vena cava to the lungs?

Correct AnswerverifiedShow Answer

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