Question 1

The vasomotor center ______.

Accepted Answer

A)  regulates the expansion of elastic arteries 
B)  controls the contraction and relaxation of precapillary sphincter muscles 
C)  increases the strength of heart muscle contraction under low oxygen conditions 
D)  sends low frequency action potentials to blood vessels to maintain tone 
A)  regulates the expansion of elastic arteries 
B)  controls the contraction and relaxation of precapillary sphincter muscles 
C)  increases the strength of heart muscle contraction under low oxygen conditions 
D)  sends low frequency action potentials to blood vessels to maintain tone

Question 2

What artery supplies the small intestine,cecum,ascending colon,and transverse colon?

Accepted Answer

A) inferior phrenic artery 
B) lumbar artery 
C) superior mesenteric artery 
D) inferior mesenteric artery 
A) inferior phrenic artery 
B) lumbar artery 
C) superior mesenteric artery 
D) inferior mesenteric artery

Question 3

Match the following with the appropriate description.
-subclavian artery

Accepted Answer

A) formed when the right and left vertebral arteries unite 
B) supplies blood to the face,nose,and mouth 
C) terminates by forming the middle cerebral arteries 
D) supplies blood to the arm and shoulder regions 
E) sense organs that monitor blood pressure 
A) formed when the right and left vertebral arteries unite 
B) supplies blood to the face,nose,and mouth 
C) terminates by forming the middle cerebral arteries 
D) supplies blood to the arm and shoulder regions 
E) sense organs that monitor blood pressure

Question 4

In capillary exchange,which of the following statements is true?

Accepted Answer

A) Most fluid that leaves the arterial end of a capillary reenters the venous end of a capillary. 
B) Interstitial fluid normally has a higher osmotic pressure than plasma. 
C) Constriction of the precapillary sphincter will increase blood pressure in the capillary. 
D) Interstitial protein concentration is normally higher than plasma protein concentration. 
E) Most fluid that leaves the arterial end of a capillary enters the lymphatic system. 
A) Most fluid that leaves the arterial end of a capillary reenters the venous end of a capillary. 
B) Interstitial fluid normally has a higher osmotic pressure than plasma. 
C) Constriction of the precapillary sphincter will increase blood pressure in the capillary. 
D) Interstitial protein concentration is normally higher than plasma protein concentration. 
E) Most fluid that leaves the arterial end of a capillary enters the lymphatic system.

Question 5

The vasa vasorum

Accepted Answer

A) are incompetent valves in the large veins. 
B) are special capillaries that supply nutrients to the walls of arteries and veins. 
C) are the blood vessels that supply blood to the vas deferens. 
D) are blood vessels that directly connect arteries to veins. 
E) supply blood to skeletal muscle. 
A) are incompetent valves in the large veins. 
B) are special capillaries that supply nutrients to the walls of arteries and veins. 
C) are the blood vessels that supply blood to the vas deferens. 
D) are blood vessels that directly connect arteries to veins. 
E) supply blood to skeletal muscle.

Question 6

The superficial vessels typically seen in the hand and forearm are tributaries of the _____ and _____ veins.

Accepted Answer

A)  subclavian; axillary 
B)  axillary; brachial 
C)  brachial; cephalic 
D)  basilica; brachial 
E)  cephalic; basilic 
A)  subclavian; axillary 
B)  axillary; brachial 
C)  brachial; cephalic 
D)  basilica; brachial 
E)  cephalic; basilic

Question 7

All of these will easily diffuse across the plasma membrane EXCEPT:

Accepted Answer

A)  oxygen 
B)  carbon dioxide 
C)  steroid hormone 
D)  glucose 
A)  oxygen 
B)  carbon dioxide 
C)  steroid hormone 
D)  glucose

Question 8

Which of the following is NOT a major point where the pulse can be monitored?

Accepted Answer

A) common carotid artery 
B) facial artery 
C) popliteal artery 
D) ulnar artery 
A) common carotid artery 
B) facial artery 
C) popliteal artery 
D) ulnar artery

Question 9

Match the term with the appropriate description.
-embolism

Accepted Answer

A) dead tissue 
B) a floating clot 
C) sudden decreased blood supply to a part of the brain 
D) a stationary clot 
E) a localized area of dead cells resulting from ischemia
, 
A) dead tissue 
B) a floating clot 
C) sudden decreased blood supply to a part of the brain 
D) a stationary clot 
E) a localized area of dead cells resulting from ischemia
,

Question 10

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?

Accepted Answer

A) Baroreceptors are stimulated. 
B) Action potential frequency to the cardioregulatory center of brain decreases. 
C) Sympathetic stimulation of the heart increases. 
D) Heart rate increases. 
E) An increase in number of action potentials in the cardiac nerve. 
A) Baroreceptors are stimulated. 
B) Action potential frequency to the cardioregulatory center of brain decreases. 
C) Sympathetic stimulation of the heart increases. 
D) Heart rate increases. 
E) An increase in number of action potentials in the cardiac nerve.

Question 11

Match the term with the best description.
-venules

Accepted Answer

A) simple squamous epithelium of capillaries 
B) drain capillary networks 
C) regulate blood flow into capillaries 
D) do not have fenestrae 
E) bypass capillary beds 
A) simple squamous epithelium of capillaries 
B) drain capillary networks 
C) regulate blood flow into capillaries 
D) do not have fenestrae 
E) bypass capillary beds

Question 12

In which of the following would you detect a weak pulse?

Accepted Answer

A) hypertension 
B) hemorrhagic shock 
C) fluid excess 
D) increased stroke volume 
E) a healthy young person 
A) hypertension 
B) hemorrhagic shock 
C) fluid excess 
D) increased stroke volume 
E) a healthy young person

Question 13

Venous drainage from the posterior thoracic wall enters the superior vena cava via the ______ vein.

Accepted Answer

A)  subclavian 
B)  internal thoracic 
C)  accessory hemiazygos 
D)  hemiazygos 
E)  azygos 
A)  subclavian 
B)  internal thoracic 
C)  accessory hemiazygos 
D)  hemiazygos 
E)  azygos

Question 14

Hormones from the adrenal medulla

Accepted Answer

A) are released in response to parasympathetic stimulation. 
B) cause vasodilation in blood vessels of the skin. 
C) decrease the heart rate. 
D) cause an increase in stroke volume. 
E) are released in response to vagal stimulation. 
A) are released in response to parasympathetic stimulation. 
B) cause vasodilation in blood vessels of the skin. 
C) decrease the heart rate. 
D) cause an increase in stroke volume. 
E) are released in response to vagal stimulation.

Question 15

According to the Laplace's Law,as the diameter of a blood vessel increases,the force applied to the wall of that vessel

Accepted Answer

A) increases. 
B) decreases. 
C) increases,then decreases. 
D) remains the same. 
E) None of these choices is correct. 
A) increases. 
B) decreases. 
C) increases,then decreases. 
D) remains the same. 
E) None of these choices is correct.

Question 16

The velocity of blood flow inside a blood vessel

Accepted Answer

A) is equal to the blood pressure. 
B) is faster in the center of the blood vessel. 
C) is most rapid at a bend or turn in the vessel. 
D) increases along the walls of the blood vessel. 
E) is more rapid along the sides of the vessel. 
A) is equal to the blood pressure. 
B) is faster in the center of the blood vessel. 
C) is most rapid at a bend or turn in the vessel. 
D) increases along the walls of the blood vessel. 
E) is more rapid along the sides of the vessel.

Question 17

Match the term with the appropriate description.
-varicose veins

Accepted Answer

A) a bulge (a weak spot)in the artery wall 
B) degenerative changes in arteries 
C) an overstretching of the veins of the lower extremities 
D) inflammation of the veins 
E) small vessels that supply nutrients to large arteries
, 
A) a bulge (a weak spot)in the artery wall 
B) degenerative changes in arteries 
C) an overstretching of the veins of the lower extremities 
D) inflammation of the veins 
E) small vessels that supply nutrients to large arteries
,

Question 18

What creates the pulse?

Accepted Answer

A) the diastole of the ventricles 
B) ejection of blood from the left ventricle into the aorta 
C) the compliance of the arteries 
D) constriction of the arterioles 
A) the diastole of the ventricles 
B) ejection of blood from the left ventricle into the aorta 
C) the compliance of the arteries 
D) constriction of the arterioles

Question 19

Which of the following would lead to relaxation of the precapillary sphincter?

Accepted Answer

A) decreased tissue metabolism 
B) decreased oxygen levels in tissue cells served by the capillary 
C) decreased carbon dioxide concentration in the capillary bed 
D) decreased lactic acid production by cells in the capillary bed 
E) decreased nitric acid levels 
A) decreased tissue metabolism 
B) decreased oxygen levels in tissue cells served by the capillary 
C) decreased carbon dioxide concentration in the capillary bed 
D) decreased lactic acid production by cells in the capillary bed 
E) decreased nitric acid levels

Question 20

Which of the following statements about laminar blood flow is true?

Accepted Answer

A) The innermost layer of blood moves at the lowest velocity. 
B) Laminar blood flow occurs when blood flows past an area of constriction. 
C) The outermost layer of blood experiences the greatest resistance to flow. 
D) In laminar blood flow,the rapid rate of blood flow exceeds critical velocity. 
E) It makes lots of different noises. 
A) The innermost layer of blood moves at the lowest velocity. 
B) Laminar blood flow occurs when blood flows past an area of constriction. 
C) The outermost layer of blood experiences the greatest resistance to flow. 
D) In laminar blood flow,the rapid rate of blood flow exceeds critical velocity. 
E) It makes lots of different noises.

Exam 21: Cardiovascular System: Blood Vessels and Circulation

The vasomotor center ______.

What artery supplies the small intestine,cecum,ascending colon,and transverse colon?

Match the following with the appropriate description. -subclavian artery

In capillary exchange,which of the following statements is true?

The vasa vasorum

The superficial vessels typically seen in the hand and forearm are tributaries of the _____ and _____ veins.

All of these will easily diffuse across the plasma membrane EXCEPT:

Which of the following is NOT a major point where the pulse can be monitored?

Match the term with the appropriate description. -embolism

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?

Match the term with the best description. -venules

In which of the following would you detect a weak pulse?

Venous drainage from the posterior thoracic wall enters the superior vena cava via the ______ vein.

Hormones from the adrenal medulla

According to the Laplace's Law,as the diameter of a blood vessel increases,the force applied to the wall of that vessel

The velocity of blood flow inside a blood vessel

Match the term with the appropriate description. -varicose veins

What creates the pulse?

Which of the following would lead to relaxation of the precapillary sphincter?

Which of the following statements about laminar blood flow is true?

The Human Organism

The Chemical Basis of Life

Cell Biology

Tissues

Integumentary System

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joints and Movement

Muscular System: Histology and Physiology

Muscular System: Gross Anatomy

Functional Organization of Nervous Tissue

Spinal Cord and Spinal Nerves

Brain and Cranial Nerves

Integration of Nervous System Functions

The Special Senses

Autonomic Nervous System

Functional Organization of the Endocrine System

Endocrine Glands

Cardiovascular System: Blood

Cardiovascular System: the Heart

Lymphatic System and Immunity

Respiratory System

Digestive System

Nutrition,metabolism,and Temperature Regulation

Urinary System

Water,electrolyte,and Acid-Based Balance

Reproductive System

Development,growth,aging,and Genetics

Filters

The superficial vessels typically seen in the hand and forearm are tributaries of the _ and _ veins.