Filters
Question type

Study Flashcards

Why does blood move slower in the capillaries compared to the arterioles?


A) Capillaries are much wider than arterioles.
B) Blood pressure is much higher in capillaries than in arterioles.
C) There are many more capillaries than arterioles.
D) Precapillary sphincters close shunting blood into capillaries.
E) Capillaries are present in muscles while arterioles are not.

F) A) and D)
G) All of the above

Correct Answer

verifed

verified

C

The excess fluid from the cardiovascular system that enters the lymphatic system is called _____.


A) lymph
B) plasma
C) blood
D) tissue fluid
E) urine

F) None of the above
G) B) and E)

Correct Answer

verifed

verified

A blood pressure of 90/40 is considered normal.

A) True
B) False

Correct Answer

verifed

verified

Which part of the body is often diseased in alcoholics due to exposure to alcohol?


A) liver
B) stomach
C) kidneys
D) esophagus
E) large intestine

F) C) and D)
G) A) and C)

Correct Answer

verifed

verified

What are the upper chambers of the heart called?


A) atria
B) auricles
C) AV valves
D) ventricles
E) septa

F) B) and C)
G) B) and D)

Correct Answer

verifed

verified

What drug may protect against having a first heart attack?


A) acetaminophen
B) aspirin
C) ACE
D) t-PA
E) beta-blockers

F) B) and E)
G) B) and C)

Correct Answer

verifed

verified

Which blood vessel of the pulmonary circuit will carry deoxygenated blood?


A) pulmonary artery
B) pulmonary vein
C) vena cava
D) aorta
E) All of these carry deoxygenated blood.

F) B) and C)
G) A) and E)

Correct Answer

verifed

verified

Which of the following heart tissues is not part of the internal conduction system of the heart?


A) atrioventricular bundle
B) atrioventricular node
C) Purkinje fibers
D) sinoatrial node
E) semilunar valve

F) B) and E)
G) A) and B)

Correct Answer

verifed

verified

The blood from the digestive tract travels through two different veins before reaching the inferior vena cava.

A) True
B) False

Correct Answer

verifed

verified

Compare the structure and function of arteries to that of veins.

Correct Answer

verifed

verified

Arteries are blood vessels that transport blood away from the heart.With the exception of the pulmonary artery,they carry oxygenated blooD They have three layers: the innermost is a thin layer called the endothelium,the middle is a thick layer of smooth muscle and elastic tissue,the outer layer is connective tissuE The elastic tissue enables it to withstand the pressure of the blood flow. Veins are blood vessels that transport blood to the heart.With the exception of the pulmonary vein,they carry deoxygenated blooD They have three layers in their walls as well.The main difference is that there is less smooth muscle in the middle layer and less connective tissue in the outer layer.The wall of a vein is thinner than that of an artery.

When dissecting a specimen,Barry noticed that the arteries were thicker and more elastic than the veins.Why?


A) Veins return blood to the heart against gravity.
B) Arteries contain a greater volume of blood.
C) Veins have valves.
D) Arteries are under greater pressure.
E) Arteries have less smooth muscle than veins.

F) A) and C)
G) B) and C)

Correct Answer

verifed

verified

Which of the following activities is not recommended for prevention of cardiovascular disease?


A) Know your cholesterol level.
B) Take antioxidant vitamins (A, E, and C) .
C) Raise the LDL intake.
D) Use olive and canola oil rather than butter/cream.
E) Exercise moderately.

F) D) and E)
G) B) and E)

Correct Answer

verifed

verified

What is the role of the lymphatic system with respect to the cardiovascular system?


A) collecting excess tissue fluids and returning them to the cardiovascular system
B) collecting excess tissue fluids and returning them to the urinary system
C) producing excess tissue fluids and returning them to the cardiovascular system
D) producing excess tissue fluids and returning them to the urinary system
E) prevention of infection

F) A) and E)
G) A) and D)

Correct Answer

verifed

verified

Blood pressure plays a major role in returning venous blood to the heart.

A) True
B) False

Correct Answer

verifed

verified

The systemic circuit contains more blood at any one time than does the pulmonary circuit.

A) True
B) False

Correct Answer

verifed

verified

If the left semilunar valve were blocked,where would blood accumulate?


A) lungs
B) right atrium
C) left atrium
D) right ventricle
E) left ventricle

F) C) and E)
G) B) and D)

Correct Answer

verifed

verified

If a person is dehydrated,how will this affect nutrient exchange at the capillaries?


A) It will have no effect.
B) Water will not leave the arterial end of the capillary and enter the tissues.
C) Oxygen will not leave the capillary and enter the tissues.
D) Carbon dioxide will not leave the tissues and enter the capillary.
E) Plasma proteins will be able to leave the capillary and enter the tissues.

F) A) and D)
G) B) and E)

Correct Answer

verifed

verified

B

Dr.Ferguson explained that in a condition known as situs inversus,the internal organs are reversed in their orientation.Thus,the apex of the heart would be oriented to the _____.


A) middle
B) right
C) left
D) front
E) back

F) C) and E)
G) A) and C)

Correct Answer

verifed

verified

Which body system will return excess tissue fluid to the cardiovascular system?


A) lymphatic
B) urinary
C) neural
D) digestive
E) muscular

F) A) and B)
G) None of the above

Correct Answer

verifed

verified

All veins carry oxygen-poor blood.

A) True
B) False

Correct Answer

verifed

verified

Showing 1 - 20 of 76

Related Exams

Show Answer