Question 1

What is the most potent vasoconstricting paracrine yet identified?

Accepted Answer

A) ​cyclic GMP 
B) acetylcholine 
C) nitric oxide 
D) dopamine 
E) ​endothelin 
A) ​cyclic GMP 
B) acetylcholine 
C) nitric oxide 
D) dopamine 
E) ​endothelin

Question 2

Under resting conditions,what percent of the body's total blood volume is within the venous system?

Accepted Answer

A) ​60% 
B) 54% 
C) 48% 
D) 40% 
E) ​33% 
A) ​60% 
B) 54% 
C) 48% 
D) 40% 
E) ​33%

Question 3

The extent of contraction of arteriolar smooth muscle depends on the cytosolic concentration of what element?

Accepted Answer

A) ​iron 
B) phosphorus 
C) potassium 
D) magnesium 
E) ​calcium 
A) ​iron 
B) phosphorus 
C) potassium 
D) magnesium 
E) ​calcium

Question 4

Figure 10-8
Use the figure above (Figure 10-8)to answer the corresponding questions.
  
-Which number in the figure represents the pressures experienced by the left ventricle?

Accepted Answer

A) 1​ 
B) 2 
C) 3 
D) 4 
E) ​5 
A) 1​ 
B) 2 
C) 3 
D) 4 
E) ​5

Question 5

On average,how far apart are the one-way valves in large veins?

Accepted Answer

A) ​1 mm intervals 
B) 5-8 mm intervals 
C) 1 cm intervals 
D) 2-4 cm intervals 
E) ​8 cm intervals 
A) ​1 mm intervals 
B) 5-8 mm intervals 
C) 1 cm intervals 
D) 2-4 cm intervals 
E) ​8 cm intervals

Question 6

When shear stress increases,endothelial cells release nitric oxide,which diffuses to the underlying smooth muscle and promotes vasodilation.​

Accepted Answer

A) True 
 B)False

Question 7

Mean arterial pressure within the circulatory system is constantly monitored by:

Accepted Answer

A) ​heart sensors 
B) baroreceptors 
C) endothelial cells 
D) pressure sinuses 
E) ​ganglions 
A) ​heart sensors 
B) baroreceptors 
C) endothelial cells 
D) pressure sinuses 
E) ​ganglions

Question 8

Following severe loss of blood,the resultant reduction in circulating blood volume leads to an increase in venous return and stroke volume,a subsequent fall in cardiac output,and a rise in mean arterial blood pressure.

Accepted Answer

A) True 
 B)False

Question 9

While measuring blood pressure with a sphygmomanometer,where is the stethoscope placed?

Accepted Answer

A) ​beneath the radial artery 
B) above the brachial plexus 
C) over the ulnar 
D) over the brachial artery 
E) ​over the radial artery 
A) ​beneath the radial artery 
B) above the brachial plexus 
C) over the ulnar 
D) over the brachial artery 
E) ​over the radial artery

Question 10

Decreased blood flow in response to enhanced tissue activity is called active hyperemia.

Accepted Answer

A) True 
 B)False

Question 11

An increased concentration of plasma proteins is a cause of edema.

Accepted Answer

A) True 
 B)False

Question 12

Veins have a large radius,so they offer little resistance to flow.​

Accepted Answer

A) True 
 B)False

Question 13

At the microcirculatory level,capillaries drain into __________,which progressively converge to form small __________ that exit the organ.​

Accepted Answer

The answer of At the microcirculatory level,capillaries drain into __________,which...

Question 14

The most important baroreceptors involved in the moment-to-moment regulation of blood pressure are located in the:

Accepted Answer

A) ​medulla and glossopharyngeal nerve 
B) internal carotid and vagus nerve 
C) carotid sinus and aortic arch 
D) glossopharyngeal nerve and vagus nerve 
E) ​medulla and carotid sinus 
A) ​medulla and glossopharyngeal nerve 
B) internal carotid and vagus nerve 
C) carotid sinus and aortic arch 
D) glossopharyngeal nerve and vagus nerve 
E) ​medulla and carotid sinus

Question 15

The flow rate of blood through a vessel is __________ proportional to the pressure gradient.

Accepted Answer

The answer of The flow rate of blood through a...

Question 16

Discuss viscosity and how it relates to blood.​

Accepted Answer

Viscosity refers to the friction develop

Question 17

When pressure inside the capillary exceeds pressure on the outside,fluid is pushed out through the pores in a process known as:

Accepted Answer

A) ​passive diffusion 
B) ultrafiltration 
C) active osmosis 
D) phagocytosis 
E) ​infusion 
A) ​passive diffusion 
B) ultrafiltration 
C) active osmosis 
D) phagocytosis 
E) ​infusion

Question 18

Explain the meaning of flow in terms of the bloodstream.

Accepted Answer

The term flow can be used in two context

Question 19

Reflex venous vasoconstriction can completely compensate for gravitational effects without skeletal muscle activity.​

Accepted Answer

A) True 
 B)False

Question 20

The systolic pressure is the peak pressure exerted in the arteries when blood is pumped into them during ventricular systole.​

Accepted Answer

A) True 
 B)False

What is the most potent vasoconstricting paracrine yet identified?

Under resting conditions,what percent of the body's total blood volume is within the venous system?

The extent of contraction of arteriolar smooth muscle depends on the cytosolic concentration of what element?

Figure 10-8 Use the figure above (Figure 10-8)to answer the corresponding questions. -Which number in the figure represents the pressures experienced by the left ventricle?

On average,how far apart are the one-way valves in large veins?

When shear stress increases,endothelial cells release nitric oxide,which diffuses to the underlying smooth muscle and promotes vasodilation.

Mean arterial pressure within the circulatory system is constantly monitored by:

Following severe loss of blood,the resultant reduction in circulating blood volume leads to an increase in venous return and stroke volume,a subsequent fall in cardiac output,and a rise in mean arterial blood pressure.

While measuring blood pressure with a sphygmomanometer,where is the stethoscope placed?

Decreased blood flow in response to enhanced tissue activity is called active hyperemia.

An increased concentration of plasma proteins is a cause of edema.

Veins have a large radius,so they offer little resistance to flow.

At the microcirculatory level,capillaries drain into ,which progressively converge to form small that exit the organ.

The most important baroreceptors involved in the moment-to-moment regulation of blood pressure are located in the:

The flow rate of blood through a vessel is __________ proportional to the pressure gradient.

Discuss viscosity and how it relates to blood.

When pressure inside the capillary exceeds pressure on the outside,fluid is pushed out through the pores in a process known as:

Explain the meaning of flow in terms of the bloodstream.

Reflex venous vasoconstriction can completely compensate for gravitational effects without skeletal muscle activity.

The systolic pressure is the peak pressure exerted in the arteries when blood is pumped into them during ventricular systole.

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System - Afferent Division - Special Senses

The Peripheral Nervous System - Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood

Body Defenses

The Respiratory System

The Urinary System

Fluid and Acid Base Balance

The Digestive System

Energy Balance and Temperature Regulation

Principles of Endocrinology - the Central Endocrine Glands

The Peripheral Endocrine Glands

The Reproductive Systembrad

Filters

Exam 10: The Blood Vessels and Blood Pressure

What is the most potent vasoconstricting paracrine yet identified?

Under resting conditions,what percent of the body's total blood volume is within the venous system?

The extent of contraction of arteriolar smooth muscle depends on the cytosolic concentration of what element?

Figure 10-8 Use the figure above (Figure 10-8)to answer the corresponding questions. -Which number in the figure represents the pressures experienced by the left ventricle?

On average,how far apart are the one-way valves in large veins?

When shear stress increases,endothelial cells release nitric oxide,which diffuses to the underlying smooth muscle and promotes vasodilation.​

Mean arterial pressure within the circulatory system is constantly monitored by:

Following severe loss of blood,the resultant reduction in circulating blood volume leads to an increase in venous return and stroke volume,a subsequent fall in cardiac output,and a rise in mean arterial blood pressure.

While measuring blood pressure with a sphygmomanometer,where is the stethoscope placed?

Decreased blood flow in response to enhanced tissue activity is called active hyperemia.

An increased concentration of plasma proteins is a cause of edema.

Veins have a large radius,so they offer little resistance to flow.​

At the microcirculatory level,capillaries drain into __________,which progressively converge to form small __________ that exit the organ.​

The most important baroreceptors involved in the moment-to-moment regulation of blood pressure are located in the:

The flow rate of blood through a vessel is __________ proportional to the pressure gradient.

Discuss viscosity and how it relates to blood.​

When pressure inside the capillary exceeds pressure on the outside,fluid is pushed out through the pores in a process known as:

Explain the meaning of flow in terms of the bloodstream.

Reflex venous vasoconstriction can completely compensate for gravitational effects without skeletal muscle activity.​

The systolic pressure is the peak pressure exerted in the arteries when blood is pumped into them during ventricular systole.​

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System - Afferent Division - Special Senses

The Peripheral Nervous System - Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood

Body Defenses

The Respiratory System

The Urinary System

Fluid and Acid Base Balance

The Digestive System

Energy Balance and Temperature Regulation

Principles of Endocrinology - the Central Endocrine Glands

The Peripheral Endocrine Glands

The Reproductive Systembrad

Filters

When shear stress increases,endothelial cells release nitric oxide,which diffuses to the underlying smooth muscle and promotes vasodilation.

Veins have a large radius,so they offer little resistance to flow.

At the microcirculatory level,capillaries drain into ,which progressively converge to form small that exit the organ.

Discuss viscosity and how it relates to blood.

Reflex venous vasoconstriction can completely compensate for gravitational effects without skeletal muscle activity.

The systolic pressure is the peak pressure exerted in the arteries when blood is pumped into them during ventricular systole.