Question 1

The loose-fitting sac around the heart is the

Accepted Answer

A) fibrous pericardium. 
B) visceral pericardium. 
C) epicardium. 
D) endocardium. 
A) fibrous pericardium. 
B) visceral pericardium. 
C) epicardium. 
D) endocardium.

Question 2

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

Question 3

An abnormally slow heart rate is termed

Accepted Answer

A) tachycardia. 
B) bradycardia. 
C) fibrillation. 
D) cardioversion. 
A) tachycardia. 
B) bradycardia. 
C) fibrillation. 
D) cardioversion.

Question 4

The normal pacemaker of the heart is the

Accepted Answer

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

Question 5

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

Accepted Answer

A) jugular 
B) axillary 
C) brachial 
D) cephalic 
A) jugular 
B) axillary 
C) brachial 
D) cephalic

Question 6

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 intestine 
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 intestine

Question 7

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

Question 8

The aorta is the largest artery in the pulmonary circuit.

Accepted Answer

A) True 
 B)False

Question 9

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. 
A) atrial systole. 
B) ventricular systole. 
C) ventricular diastole. 
D) atrial diastole.

Question 10

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. 
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.

Question 11

Small areas of the myocardium contracting chaotically is called

Accepted Answer

A) flutter. 
B) fibrillation. 
C) bradycardia. 
D) tachycardia. 
A) flutter. 
B) fibrillation. 
C) bradycardia. 
D) tachycardia.

Question 12

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 ventricle 
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 ventricle

Question 13

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. 
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.

Question 14

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

Accepted Answer

A) True 
 B)False

Question 15

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. 
A) an aortic aneurysm. 
B) scar tissue from a previous heart attack. 
C) intake of alcohol. 
D) use of cholesterol-lowering prescriptions.

Question 16

The inner lining of the heart is the

Accepted Answer

A) epicardium. 
B) myocardium. 
C) endocardium. 
D) pericardium. 
A) epicardium. 
B) myocardium. 
C) endocardium. 
D) pericardium.

Question 17

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

Accepted Answer

A) True 
 B)False

Question 18

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

Accepted Answer

A) True 
 B)False

Question 19

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. 
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.

Question 20

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. 
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.

Exam 15: Cardiovascular System

The loose-fitting sac around the heart is the

Which of the following helps return blood to the heart?

An abnormally slow heart rate is termed

The normal pacemaker of the heart is the

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

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?

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?

The aorta is the largest artery in the pulmonary circuit.

The blood pressure in the large systemic arteries is greatest during

When the ventricular walls contract,

Small areas of the myocardium contracting chaotically is called

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

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

Sudden cardiac arrest can result from

The inner lining of the heart is the

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

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

A left ventricular assist device

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

Introduction to Human Anatomy and Physiology

Chemical Basis of Life

Cells

Cellular Metabolism

Tissues

Integumentary System

Skeletal System

Joints of the Skeletal System

Muscular System

Nervous System I: Basic Structure and Function

Nervous System II: Divisions of the Nervous System

Nervous System III: Senses

Endocrine System

Blood

Lymphatic System and Immunity

Digestive System

Nutrition and Metabolism

Respiratory System

Urinary System

Water, Electrolyte, and Acid-Base Balance

Reproductive Systems

Pregnancy, Growth, and Development

Genetics and Genomics

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