Question 1

When venous return increases,the heart contracts more forcefully.This is called:

Accepted Answer

A) Starling's law of the heart,and it decreases cardiac output 
B) the venous reflex,and it decreases cardiac output 
C) Starling's law of the heart,and it increases cardiac output 
D) the venous reflex,and it increases cardiac output 
A) Starling's law of the heart,and it decreases cardiac output 
B) the venous reflex,and it decreases cardiac output 
C) Starling's law of the heart,and it increases cardiac output 
D) the venous reflex,and it increases cardiac output

Question 2

A venous anastomosis is important because it:

Accepted Answer

A) provides another pathway for blood to leave the heart 
B) provides another pathway for blood to return to the heart 
C) provides another pathway for blood to get to the capillaries of an organ 
D) exchanges materials between blood and tissues 
A) provides another pathway for blood to leave the heart 
B) provides another pathway for blood to return to the heart 
C) provides another pathway for blood to get to the capillaries of an organ 
D) exchanges materials between blood and tissues

Question 3

In capillaries,nutrients dissolved in plasma are brought to tissues by the process of:

Accepted Answer

A) filtration 
B) diffusion 
C) osmosis 
D) phagocytosis 
A) filtration 
B) diffusion 
C) osmosis 
D) phagocytosis

Question 4

The layer in the wall of an artery that is smooth to prevent abnormal clotting is the:

Accepted Answer

A) outer layer of fibrous connective tissue 
B) simple squamous epithelial lining 
C) middle layer of smooth muscle and elastic connective tissue 
D) smooth muscle lining 
A) outer layer of fibrous connective tissue 
B) simple squamous epithelial lining 
C) middle layer of smooth muscle and elastic connective tissue 
D) smooth muscle lining

Question 5

Capillaries carry blood from:

Accepted Answer

A) arteries to arterioles 
B) veins to the heart 
C) venules to arterioles 
D) arterioles to venules 
A) arteries to arterioles 
B) veins to the heart 
C) venules to arterioles 
D) arterioles to venules

Question 6

Following a small loss of blood,the kidneys will:

Accepted Answer

A) increase urinary output to prevent concentration of waste products in the blood 
B) decrease urinary output to conserve water 
C) decrease urinary output to conserve energy 
D) be unaffected 
A) increase urinary output to prevent concentration of waste products in the blood 
B) decrease urinary output to conserve water 
C) decrease urinary output to conserve energy 
D) be unaffected

Question 7

Blood flow into capillary networks is regulated by:

Accepted Answer

A) precapillary sphincters made of fibrous connective tissue 
B) postcapillary sphincters made of fibrous connective tissue 
C) precapillary sphincters made of smooth muscle 
D) postcapillary sphincters made of smooth muscle 
A) precapillary sphincters made of fibrous connective tissue 
B) postcapillary sphincters made of fibrous connective tissue 
C) precapillary sphincters made of smooth muscle 
D) postcapillary sphincters made of smooth muscle

Question 8

Which of these is NOT true of a BP reading?

Accepted Answer

A) Systolic pressure reflects the force of the left ventricle. 
B) Hypotension would be a systolic pressure below 110 mmHg. 
C) The reading is in millimeters of mercury. 
D) At least two readings should be taken to see if they are consistent. 
A) Systolic pressure reflects the force of the left ventricle. 
B) Hypotension would be a systolic pressure below 110 mmHg. 
C) The reading is in millimeters of mercury. 
D) At least two readings should be taken to see if they are consistent.

Question 9

The term for high blood pressure is:

Accepted Answer

A) hyperpressure 
B) vascular excess 
C) vascular insufficiency 
D) hypertension 
A) hyperpressure 
B) vascular excess 
C) vascular insufficiency 
D) hypertension

Question 10

The layer in the wall of an artery that helps maintain blood pressure is the:

Accepted Answer

A) outer layer of fibrous connective tissue 
B) simple squamous epithelial lining 
C) middle layer of smooth muscle and elastic connective tissue 
D) smooth muscle lining 
A) outer layer of fibrous connective tissue 
B) simple squamous epithelial lining 
C) middle layer of smooth muscle and elastic connective tissue 
D) smooth muscle lining

Question 11

In capillaries,oxygen and carbon dioxide are exchanged by the process of:

Accepted Answer

A) osmosis 
B) phagocytosis 
C) filtration 
D) diffusion 
A) osmosis 
B) phagocytosis 
C) filtration 
D) diffusion

Question 12

Blood flows from the placenta to the fetus through the:

Accepted Answer

A) ductus venosus 
B) umbilical arteries 
C) umbilical vein 
D) ductus arteriosus 
A) ductus venosus 
B) umbilical arteries 
C) umbilical vein 
D) ductus arteriosus

Question 13

Which statement is NOT true of the effects of hormones on blood pressure?

Accepted Answer

A) Epinephrine increases heart rate and raises BP. 
B) ANP increases urinary excretion of sodium and water and lowers BP. 
C) Norepinephrine causes vasoconstriction and lowers BP. 
D) Aldosterone increases sodium and water reabsorption by the kidneys and raises BP. 
A) Epinephrine increases heart rate and raises BP. 
B) ANP increases urinary excretion of sodium and water and lowers BP. 
C) Norepinephrine causes vasoconstriction and lowers BP. 
D) Aldosterone increases sodium and water reabsorption by the kidneys and raises BP.

Question 14

The diameter of arteries and veins is regulated by a center in the:

Accepted Answer

A) cerebrum 
B) cerebellum 
C) hypothalamus 
D) medulla 
A) cerebrum 
B) cerebellum 
C) hypothalamus 
D) medulla

Question 15

Which of these is NOT an example of the purpose of hepatic portal circulation?

Accepted Answer

A) regulation of blood glucose level 
B) removal of bilirubin from the blood for excretion 
C) regulation of blood pressure 
D) removal of iron from the blood for storage 
A) regulation of blood glucose level 
B) removal of bilirubin from the blood for excretion 
C) regulation of blood pressure 
D) removal of iron from the blood for storage

Question 16

The effect of the hormone aldosterone on blood pressure is to:

Accepted Answer

A) raise it by causing vasoconstriction 
B) lower it by decreasing blood volume 
C) raise it by increasing blood volume 
D) lower it by causing vasodilation 
A) raise it by causing vasoconstriction 
B) lower it by decreasing blood volume 
C) raise it by increasing blood volume 
D) lower it by causing vasodilation

Question 17

Which vein is NOT paired with the part of the body it drains of blood?

Accepted Answer

A) external jugular - neck 
B) common iliac - forearm 
C) subclavian - shoulder 
D) popliteal - knee 
A) external jugular - neck 
B) common iliac - forearm 
C) subclavian - shoulder 
D) popliteal - knee

Question 18

Which statement is NOT true of fetal circulation?

Accepted Answer

A) The foramen ovale permits blood to bypass the fetal liver. 
B) The umbilical arteries take blood from the fetus to the placenta. 
C) The ductus arteriosus permits blood to bypass the fetal lungs. 
D) The placenta is the site of exchanges between maternal blood and fetal blood. 
A) The foramen ovale permits blood to bypass the fetal liver. 
B) The umbilical arteries take blood from the fetus to the placenta. 
C) The ductus arteriosus permits blood to bypass the fetal lungs. 
D) The placenta is the site of exchanges between maternal blood and fetal blood.

Question 19

In capillaries,filtration is the process by which:

Accepted Answer

A) nutrients are brought to tissues 
B) waste products are brought into the blood 
C) gases are exchanged 
D) A and B only 
A) nutrients are brought to tissues 
B) waste products are brought into the blood 
C) gases are exchanged 
D) A and B only

Question 20

Veins carry blood from:

Accepted Answer

A) arteries to capillaries 
B) the heart to capillaries 
C) capillaries to arteries 
D) capillaries to the heart 
A) arteries to capillaries 
B) the heart to capillaries 
C) capillaries to arteries 
D) capillaries to the heart

Exam 14:The Vascular System-Part C

When venous return increases,the heart contracts more forcefully.This is called:

A venous anastomosis is important because it:

In capillaries,nutrients dissolved in plasma are brought to tissues by the process of:

The layer in the wall of an artery that is smooth to prevent abnormal clotting is the:

Capillaries carry blood from:

Following a small loss of blood,the kidneys will:

Blood flow into capillary networks is regulated by:

Which of these is NOT true of a BP reading?

The term for high blood pressure is:

The layer in the wall of an artery that helps maintain blood pressure is the:

In capillaries,oxygen and carbon dioxide are exchanged by the process of:

Blood flows from the placenta to the fetus through the:

Which statement is NOT true of the effects of hormones on blood pressure?

The diameter of arteries and veins is regulated by a center in the:

Which of these is NOT an example of the purpose of hepatic portal circulation?

The effect of the hormone aldosterone on blood pressure is to:

Which vein is NOT paired with the part of the body it drains of blood?

Which statement is NOT true of fetal circulation?

In capillaries,filtration is the process by which:

Veins carry blood from:

Organization and General Plan of the Body-Part A

Organization and General Plan of the Body-Part B

Organization and General Plan of the Body-Part C

Some Basic Chemistry-Part A

Some Basic Chemistry-Part B

Some Basic Chemistry-Part C

Cells-Part A

Cells-Part B

Cells-Part C

Tissues and Membranes-Part A

Tissues and Membranes-Part B

Tissues and Membranes-Part C

The Integumentary System-Part A

The Integumentary System-Part B

The Integumentary System-Part C

The Skeletal System-Part A

The Skeletal System-Part B

The Skeletal System-Part C

The Muscular System-Part A

The Muscular System-Part B

The Muscular System-Part C

The Nervous System-Part A

The Nervous System-Part B

The Nervous System-Part C

The Senses-Part A

The Senses-Part B

The Senses-Part C

The Endocrine System-Part A

The Endocrine System-Part B

The Endocrine System-Part C

Blood-Part A

Blood-Part B

Blood-Part C

The Heart-Part A

The Heart-Part B

The Heart-Part C

The Vascular System-Part A

The Vascular System-Part B

The Lymphatic System and Immunity-Part A

The Lymphatic System and Immunity-Part B

The Lymphatic System and Immunity-Part C

The Respiratory System-Part A

The Respiratory System-Part B

The Respiratory System-Part C

The Digestive System-Part A

The Digestive System-Part B

The Digestive System-Part C

Body Temperature and Metabolism-Part A

Body Temperature and Metabolism-Part B

Body Temperature and Metabolism-Part C

The Urinary System-Part A

The Urinary System-Part B

The Urinary System-Part C

Fluid–Electrolyte and Acid–Base Balance-Part A

Fluid–Electrolyte and Acid–Base Balance-Part B

Fluid–Electrolyte and Acid–Base Balance-Part C

The Reproductive Systems-Part A

The Reproductive Systems-Part B

The Reproductive Systems-Part C